All Tools
Every one of our 598 free online tools, across 18 categories. Nothing to install, nothing uploaded — it all runs in your browser.
Showing 598 of 598 tools
Text Tools
45 tools- Free Word Counter OnlineCount words, characters, sentences, paragraphs, and reading time instantly. Free online word counter tool. Works entirely in your browser with no sign-up required.
- Free Text Case Converter OnlineConvert text to uppercase, lowercase, title case, or sentence case. Free online case converter. Works entirely in your browser with no sign-up required.
- Free Lorem Ipsum GeneratorGenerate placeholder Lorem Ipsum text for design and development projects. Free, fast, and works entirely in your browser with no sign-up required.
- Free Duplicate Line RemoverRemove duplicate lines from your text while preserving order. Free online tool. Works entirely in your browser with no sign-up required.
- Free Reverse Text GeneratorReverse text by characters, words, or lines. Free text reverser tool. Works entirely in your browser with no sign-up required.
- Free Line Number ToolAdd line numbers to your text with customizable formatting options. Free, fast, and works entirely in your browser with no sign-up required.
- Free MD5 Hash GeneratorGenerate MD5 hash from any text string. Free online MD5 hash generator. Works entirely in your browser with no sign-up required.
- Free Text to Binary ConverterConvert text to binary code and binary to text. Free binary converter. Works entirely in your browser with no sign-up required.
- Free Random Word GeneratorGenerate random words for brainstorming, games, and creative projects. Free, fast, and works entirely in your browser with no sign-up required.
- Free Number to Words ConverterConvert numbers to their word representation. Supports large numbers. Free, fast, and works entirely in your browser with no sign-up required.
- Free Comma Separator ToolConvert lists between different separator formats. Comma, newline, tab, and more. Free, fast, and works entirely in your browser with no sign-up required.
- Free Upside Down Text GeneratorFlip your text upside down using Unicode characters. Fun text generator. Free, fast, and works entirely in your browser with no sign-up required.
- Free Morse Code TranslatorConvert text to Morse code and back. Includes audio playback. Free, fast, and works entirely in your browser with no sign-up required.
- Free Markdown Table GeneratorCreate and edit Markdown tables visually. Supports CSV import. Free, fast, and works entirely in your browser with no sign-up required.
- Free Text Statistics AnalyzerAnalyze text with detailed statistics. Word frequency, letter frequency, and more. Free, fast, and works entirely in your browser with no sign-up required.
- Free Emoji Picker & SearchSearch and copy emojis by category. Complete emoji library. Free, fast, and works entirely in your browser with no sign-up required.
- Free Whitespace Remover OnlineRemove extra spaces, empty lines, and tabs from your text. Free, fast, and works entirely in your browser with no sign-up required.
- Free Text Repeater ToolRepeat text multiple times with custom separators and numbering. Free, fast, and works entirely in your browser with no sign-up required.
- Free Text Encryption ToolEncrypt and decrypt text using AES-256, Caesar cipher, and ROT13. Free, fast, and works entirely in your browser with no sign-up required.
- Free Text to Speech OnlineConvert text to speech using browser synthesis. Multiple voices available. Free, fast, and works entirely in your browser with no sign-up required.
- Free Speech to Text OnlineConvert spoken words to text using speech recognition. 20+ languages. Free, fast, and works entirely in your browser with no sign-up required.
- Free Fancy Text GeneratorTransform your text into 80+ fancy Unicode font styles -- bold, italic, cursive, gothic, bubble, and more -- free for Instagram, Twitter/X, TikTok, and Discord.
- Free Palindrome Checker OnlineCheck if text is a palindrome and find palindromic words. Free, fast, and works entirely in your browser with no sign-up required.
- Free Anagram Generator OnlineGenerate all possible anagrams and word rearrangements from any input text or phrase. Free, fast, and works entirely in your browser with no sign-up required.
- Free Text Diff & MergerCompare two texts side by side, highlight differences, and merge them together seamlessly. Free, fast, and works entirely in your browser with no sign-up required.
- Free Text to Handwriting ToolConvert typed text into realistic handwritten-style images. Free, fast, and works entirely in your browser with no sign-up required.
- Free Word Scrambler OnlineScramble text in various ways for games and puzzles. Free, fast, and works entirely in your browser with no sign-up required.
- Free Text Truncator OnlineTruncate text by characters, words, sentences, or lines. Free, fast, and works entirely in your browser with no sign-up required.
- Free Text Sorter OnlineSort text alphabetically, numerically, or by length. Free, fast, and works entirely in your browser with no sign-up required.
- Free Stop Words RemoverRemove stop words from text for SEO content optimization and text analysis. Free, fast, and works entirely in your browser with no sign-up required.
- Free Email Extractor OnlineExtract and collect all email addresses from any block of text or webpage content. Free, fast, and works entirely in your browser with no sign-up required.
- Free Advanced Word CounterAdvanced word counter with readability scores and detailed analytics. Free, fast, and works entirely in your browser with no sign-up required.
- Free Emoji Translator OnlineTranslate emojis to text descriptions and vice versa. Free, fast, and works entirely in your browser with no sign-up required.
- Readability Score CalculatorCalculate Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog, SMOG, Coleman-Liau, ARI, and Dale-Chall readability scores for any text.
- Text CleanerComprehensive text cleaner with 18+ toggles: strip HTML, URLs, emails, phones, punctuation, numbers, non-ASCII, zero-width chars, smart quotes. Includes Unicode normalization.
- Find and Replace BulkRun multiple find-and-replace rules on your text at once with regex, case-sensitivity, and whole-word support. Import/export rule sets as JSON.
- Word Frequency CounterAnalyze word frequency in any text. Get rank, count, percentage, bigrams, trigrams, hapax legomena, and a visual word cloud. Free and private.
- Markdown to HTML ConverterConvert Markdown to clean, semantic HTML with GFM support (tables, task lists, strikethrough), full HTML5 document wrapping, sanitization, and minification.
- HTML to Markdown ConverterConvert HTML to clean Markdown. Supports headings, lists, tables, code blocks, links, and images with configurable bullet/heading/link/code styles.
- N-Gram ExtractorExtract and analyze word and character n-grams (unigrams, bigrams, trigrams, 4-grams, 5-grams) with frequency counts, percentages, and diversity metrics.
- Strikethrough Text GeneratorGenerate strikethrough, underline, and overline text using Unicode combining characters. Works on all social media platforms.
- Zalgo / Glitch Text GeneratorTransform text into creepy, glitchy Zalgo text using Unicode combining diacritical marks. Control intensity, direction, and mark positions.
- Emoji Text GeneratorConvert plain text letters into emoji-style Unicode equivalents: regional indicators, circled, fullwidth, squared letters, and emoji spacing.
- English Lemmatizer & Porter StemmerReduce English words to their base forms with the Porter stemmer algorithm or a rule-based lemmatizer. Compare both side by side.
- Invisible Character GeneratorGenerate zero-width and invisible Unicode characters, insert them into visible text, or detect hidden chars in pasted text.
AI Writing Tools
51 tools- Free AI Article RewriterRewrite articles while maintaining the original meaning using AI. Free, fast, and works entirely in your browser with no sign-up required.
- Free AI Paraphrasing ToolRephrase sentences and paragraphs in different ways using AI. Free, fast, and works entirely in your browser with no sign-up required.
- Free Grammar Checker OnlineCheck and correct grammar, spelling, and punctuation errors. Free, fast, and works entirely in your browser with no sign-up required.
- Free AI Headline GeneratorGenerate catchy headlines for articles and blog posts using AI. Free, fast, and works entirely in your browser with no sign-up required.
- Free Meta Description GeneratorCreate SEO-optimized meta descriptions for web pages using AI. Free, fast, and works entirely in your browser with no sign-up required.
- Free Blog Outline GeneratorCreate structured outlines for blog posts and articles using AI. Free, fast, and works entirely in your browser with no sign-up required.
- Free AI Content SummarizerSummarize long articles into concise key points using AI. Free, fast, and works entirely in your browser with no sign-up required.
- Free AI Tone ChangerChange the tone of your text (formal, casual, professional) using AI. Free, fast, and works entirely in your browser with no sign-up required.
- Free Readability ImproverSimplify complex text for better readability using AI. Free, fast, and works entirely in your browser with no sign-up required.
- Free AI Keyword ExtractorExtract important keywords and phrases from text using AI. Free, fast, and works entirely in your browser with no sign-up required.
- Free Call-to-Action GeneratorGenerate compelling CTAs for marketing content using AI. Free, fast, and works entirely in your browser with no sign-up required.
- Free Product Description WriterCreate engaging product descriptions for e-commerce using AI. Free, fast, and works entirely in your browser with no sign-up required.
- Free AI Slogan GeneratorGenerate catchy, memorable slogans for your brand using AI-powered templates. Get 10 unique variations instantly. Free, fast, and works entirely in your browser with no sign-up required.
- Free AI Tagline GeneratorCreate powerful brand taglines with AI. Generate corporate, emotional, and minimalist taglines for any company. Free, fast, and works entirely in your browser with no sign-up required.
- Free AI Brand Name GeneratorGenerate creative, memorable brand names using AI. Get compound words, portmanteaus, invented names, and more. Free, fast, and works entirely in your browser with no sign-up required.
- Free AI Domain Name GeneratorGenerate creative domain name ideas from your keywords. Find available, catchy domain names for your website. Free, fast, and works entirely in your browser with no sign-up required.
- Free AI Testimonial GeneratorGenerate realistic customer testimonials and reviews for your product or service. Perfect for mockups and examples. Free, fast, and works entirely in your browser with no sign-up required.
- Free AI Review ResponderGenerate professional responses to customer reviews. Handle positive and negative reviews with the perfect reply. Free, fast, and works entirely in your browser with no sign-up required.
- Free AI Reply GeneratorGenerate professional replies to emails, social media comments, and messages instantly. Multiple tone options. Free, fast, and works entirely in your browser with no sign-up required.
- Free AI Image Prompt GeneratorGenerate optimized prompts for Midjourney, DALL-E 3, Stable Diffusion, and Adobe Firefly from simple descriptions. Free, fast, and works entirely in your browser with no sign-up required.
- Free AI Instagram Caption GeneratorGenerate 4 Instagram caption styles — short & punchy, long-form story, question-based, and educational. Choose tone, niche, and get hashtags.
- Free AI TikTok Caption GeneratorGenerate 5 TikTok caption styles plus 15 targeted hashtags. Styles include hook-based, trend format, CTA, emoji-heavy, and minimalist.
- Free AI LinkedIn Post GeneratorGenerate 3 LinkedIn post formats — story, listicle, and hot take — tailored to your topic, audience, and tone. Free, fast, and works entirely in your browser with no sign-up required.
- Free AI Cold Email GeneratorGenerate 4 cold email frameworks — AIDA, PAS, Direct, and Curiosity — with subject lines and P.S. lines for any sales scenario.
- Free AI Interview Question GeneratorGenerate behavioral, technical, and situational interview questions with STAR hints and difficulty badges for any role and experience level.
- Free AI Job Description GeneratorGenerate a complete, structured job description with responsibilities, requirements, benefits, and EEO statement from a few simple inputs.
- Free AI Press Release GeneratorGenerate a professionally formatted press release for product launches, milestones, partnerships, awards, expansions, or funding rounds.
- Free AI YouTube Title GeneratorGenerate 10 high-CTR YouTube video title variations — how-to, listicle, question, curiosity, and more — from your topic and keywords.
- Free AI YouTube Description GeneratorGenerate SEO-optimized YouTube video descriptions with hook, chapters, CTA, and hashtags. Structured format to maximize search visibility and watch time.
- Free AI Tweet GeneratorGenerate 6 tweet variations under 280 characters from your topic — professional, casual, question, stat, hot take, and thread-starter styles.
- Free AI Blog Post WriterGenerate a complete, publish-ready blog post with H1 title, meta description, 4-5 H2 sections, FAQ, and conclusion CTA. Choose tone, word count, and target audience.
- Free AI Research Brief GeneratorGenerate a structured research brief with executive summary, 5-7 key findings, supporting arguments, data point placeholders, counterarguments, research gaps, and bibliography template.
- Free AI SEO Audit Report GeneratorGenerate a detailed SEO audit report with technical issues analysis, on-page and off-page findings, High/Medium/Low priority action items, and a 30-60-90 day implementation roadmap.
- Free AI Text HumanizerTransform AI-generated text into natural, human-sounding writing. Replaces 25+ formal phrases, adds contractions, varies sentence length, injects transitions, and restructures paragraphs.
- Free AI Content DetectorAnalyze text for AI-generated patterns using sentence length variance, vocabulary diversity (TTR), passive voice ratio, transition word density, and repetitive phrase detection.
- Free AI Text TranslatorTranslate text to 65+ languages via Google Translate integration. Explore language families, view native names, and reference a 10-language common phrases table.
- Free AI Meeting Notes SummarizerTransform raw meeting notes or transcripts into structured summaries with meeting overview table, key decisions, action items table, discussion points, next steps, and follow-up checklist.
- Free AI Podcast Show Notes GeneratorGenerate complete podcast show notes with episode description, timestamped sections, key insights, 10 SEO keywords, 3 social media promo posts, and an email newsletter blurb.
- Free AI YouTube Script WriterGenerate a full YouTube video script with hook, subscribe CTA intro, timestamped main sections, b-roll cues, and outro. Choose duration (5-20 min), style, and call-to-action.
- Free AI Twitter/X Thread WriterGenerate a complete Twitter/X thread with a strong hook tweet, value-packed middle tweets, and a CTA summary ending. Choose 5-15 tweets and Educational, Storytelling, Tips, or Contrarian style.
- Free AI Resume WriterGenerate an ATS-optimized resume with professional summary, 5 quantified work experience bullets using strong action verbs, 12 industry-relevant skills, and an ATS score estimate.
- Free AI Cover Letter WriterGenerate a personalized 3-4 paragraph cover letter with a company-specific opening hook, achievement-focused body paragraphs with metrics, and a confident closing CTA.
- AI Ad Copy GeneratorGenerate high-converting ad copy for 6 platforms: Google Ads, Facebook, Instagram, LinkedIn, Twitter/X, and Display Banners with character count validation.
- AI Email Subject Line GeneratorGenerate 20 email subject line variations across styles: urgency, curiosity, personalization, listicle, power words, and emoji with estimated open rate tiers.
- AI FAQ GeneratorGenerate comprehensive FAQs with answers for any topic or product. Export as FAQ list, JSON-LD schema markup, or HTML accordion code. Supports 5 to 20 FAQs.
- AI Hashtag GeneratorGenerate 30 platform-optimized hashtags sorted by reach tier: Mega (1M+), Macro (100K to 1M), Micro (10K to 100K), and Niche under 10K for Instagram, TikTok, and more.
- AI Content Calendar GeneratorGenerate a 4-week social media content calendar with post topics, caption hooks, hashtags, and CTAs for multiple platforms. Download as CSV.
- AI Short Story GeneratorGenerate complete short stories with title, 3-act structure, dialogue, and descriptive scenes. Choose from Fantasy, Sci-Fi, Romance, Mystery, Horror, or Adventure.
- Free AI Keyword Research AgentGenerate 40+ keyword ideas from a seed topic across 5 categories: head terms, long-tail, question keywords, LSI/semantic, and local modifiers — each with volume tier, competition tier, and search intent label.
- Free AI Competitor Analysis AgentGenerate a competitor analysis report with SWOT analysis, content gap opportunities, keyword strategy insights, competitor topic predictions, and 5 strategic recommendations.
- Free AI Content Refresh ToolPaste an existing article and get a structured refresh plan: updated meta title and description, refreshed intro and conclusion, new sections to add, outdated claims to fix, SEO improvements, and internal linking suggestions.
SEO Tools
32 tools- Free SEO Meta Tag GeneratorGenerate SEO-friendly meta tags for your website. Title, description, keywords, and more. Free, fast, and works entirely in your browser with no sign-up required.
- Free Open Graph Tag GeneratorCreate Open Graph and Twitter Card meta tags for social media sharing. Free, fast, and works entirely in your browser with no sign-up required.
- Free Robots.txt GeneratorGenerate a robots.txt file to control search engine crawling. Free, fast, and works entirely in your browser with no sign-up required.
- Free Keyword Density CheckerAnalyze keyword density and frequency in your content for SEO optimization. Free, fast, and works entirely in your browser with no sign-up required.
- Free SEO Slug GeneratorGenerate clean, SEO-friendly URL slugs from any text with special character handling. Free, fast, and works entirely in your browser with no sign-up required.
- Free Twitter Card GeneratorGenerate Twitter Card meta tags for social media previews. Free, fast, and works entirely in your browser with no sign-up required.
- Free Schema Markup GeneratorGenerate JSON-LD structured data for rich search results. 14+ schema types. Free, fast, and works entirely in your browser with no sign-up required.
- Free Open Graph Preview ToolPreview and generate Open Graph meta tags for social media. Free, fast, and works entirely in your browser with no sign-up required.
- Free Website SEO CheckerAnalyze any website's SEO health with detailed recommendations.
- Free Google Index CheckerCheck if your URLs are indexed by Google search and monitor your indexing status. Free, fast, and works entirely in your browser with no sign-up required.
- SERP Preview ToolPreview how your page appears in Google search with live desktop and mobile snippets, pixel-width measurement, and meta tag export.
- SERP Snippet OptimizerAnalyze and optimize your page title and meta description for higher Google SERP click-through rates with a live 100-point scorecard.
- Hreflang Tag GeneratorGenerate hreflang link tags, HTTP Link headers, and XML sitemap entries for multilingual and multi-regional websites with validation.
- Heading Structure AnalyzerAnalyze H1-H6 heading hierarchy from HTML or Markdown. Detect SEO issues, visualize the outline, and score your structure.
- SEO Content Brief GeneratorGenerate comprehensive SEO content briefs with meta tags, heading structure, keywords, PAA questions, checklists, and schema recommendations.
- Search Intent ClassifierClassify keywords into informational, navigational, commercial investigation, or transactional intent with content type, CTA, and funnel stage recommendations.
- E-E-A-T Content AuditorAudit content against Google Experience, Expertise, Authoritativeness, and Trustworthiness quality rater signals with a 100-point scorecard and fix list.
- Rich Results PreviewPaste JSON-LD structured data to preview Google-style rich results for FAQPage, Product, Recipe, Article, Event, and more with field validation.
- Robots.txt TesterTest and validate robots.txt files. Check if URLs are allowed or blocked for any crawler, parse directives, and bulk-test multiple URLs.
- Canonical URL CheckerPaste HTML source to analyze canonical tags, og:url, and base href. Detect duplicates, protocol mismatches, placement issues, and get SEO recommendations.
- Structured Data TesterValidate JSON-LD structured data for schema.org compliance. Check required and recommended fields, inspect nesting, view property tables, and export cleaned markup.
- Core Web Vitals CheckerCheck and understand your Core Web Vitals (LCP, INP, CLS, FCP, TTFB, TBT) with educational guidance and optimization tips.
- XML Sitemap AnalyzerParse, validate, and analyze XML sitemaps. Detect errors, priorities, change frequencies, URL structure, and image/video/news counts.
- Free LCP Tester & AnalyzerTest and analyze your Largest Contentful Paint (LCP) score. Measure this page's LCP in real-time or enter a value from PageSpeed Insights to get a rating and tips.
- Free CLS Tester & AnalyzerTest and analyze your Cumulative Layout Shift (CLS) score. Measures this page's layout shifts in the browser or analyzes a score from PageSpeed Insights.
- Free Hreflang Tag CheckerValidate hreflang tags in your page HTML. Detects missing x-default, duplicate locales, relative URLs, and invalid BCP 47 language codes.
- Free XML Sitemap GeneratorGenerate XML sitemaps with custom URLs, priorities, change frequencies, and last-modified dates. Add image sitemaps and download as valid XML.
- FID / INP CheckerMeasure Interaction to Next Paint (INP) and First Input Delay (FID) in your browser using PerformanceObserver. Check PageSpeed Insights scores and get tips to improve interaction responsiveness.
- TTFB CheckerMeasure Time to First Byte (TTFB) for any page using the Navigation Timing API. Enter custom values to check ratings and get server optimization tips.
- Keyword Gap AnalyzerCompare your keyword list with a competitor's to find gaps you're missing, advantages you hold, and shared keywords. Export the gap analysis as CSV.
- Content Gap AnalyzerCompare your site's URLs and topics with a competitor's to identify content areas they cover that you don't. Prioritized by similarity and content opportunity.
- Internal Link OptimizerPaste your page's HTML and a target keyword to analyze internal link anchor text distribution, identify generic anchors, and get improvement suggestions.
Image Tools
42 tools- Free Image Resizer OnlineResize images to any dimension. Maintain aspect ratio or set custom sizes. Free, fast, and works entirely in your browser with no sign-up required.
- Free Image Compressor OnlineCompress PNG, JPG, and WebP images to shrink file size without losing quality. Free, fast, and runs entirely in your browser — no uploads, no sign-up.
- Free Image Cropper OnlineCrop images to any size or aspect ratio with visual editor. Free, fast, and works entirely in your browser with no sign-up required.
- Free Favicon GeneratorGenerate favicons in all sizes from a single image. Free, fast, and works entirely in your browser with no sign-up required.
- Free Image to Base64 ConverterConvert images to Base64 encoded strings for embedding. Free, fast, and works entirely in your browser with no sign-up required.
- Free Placeholder Image GeneratorGenerate placeholder images for mockups and prototypes. Free, fast, and works entirely in your browser with no sign-up required.
- Free Image Filters & EffectsApply filters and effects to images. Brightness, contrast, and more. Free, fast, and works entirely in your browser with no sign-up required.
- Free Image Rotate & Flip ToolRotate images by any angle and flip them horizontally or vertically. Free, fast, and works entirely in your browser with no sign-up required.
- Free SVG to PNG ConverterConvert SVG files to PNG images with custom dimensions. Free, fast, and works entirely in your browser with no sign-up required.
- Free Image Watermark ToolAdd text watermarks to your images with customizable styles. Free, fast, and works entirely in your browser with no sign-up required.
- Free Image Color PickerExtract colors from any image. Get HEX, RGB, and HSL values. Free, fast, and works entirely in your browser with no sign-up required.
- Free Image Metadata ViewerView EXIF data, dimensions, GPS location from images. Free, fast, and works entirely in your browser with no sign-up required.
- Free Pattern Generator OnlineCreate seamless geometric patterns for backgrounds. Free, fast, and works entirely in your browser with no sign-up required.
- Free Noise Texture GeneratorGenerate procedural noise textures (Perlin, Worley, fBm). Free, fast, and works entirely in your browser with no sign-up required.
- Free Color Mixer ToolMix colors using different color models (RGB, RYB, HSL, LAB). Free, fast, and works entirely in your browser with no sign-up required.
- Free CSS Sprite GeneratorCombine multiple images into a single sprite sheet. Free, fast, and works entirely in your browser with no sign-up required.
- Free CSS Gradient GeneratorCreate beautiful CSS gradients with a visual editor. Free, fast, and works entirely in your browser with no sign-up required.
- Free Photo Collage MakerCombine multiple photos into beautiful, customizable collages with flexible layout options. Free, fast, and works entirely in your browser with no sign-up required.
- Free Image Pixelator ToolConvert images into pixel art with customizable pixel sizes. Free, fast, and works entirely in your browser with no sign-up required.
- Free Image Glitch EffectApply glitch effects to images for artistic looks. Free, fast, and works entirely in your browser with no sign-up required.
- Free Image Duotone EffectApply stunning duotone color effects to your images with custom color combinations. Free, fast, and works entirely in your browser with no sign-up required.
- Free Image Vignette EffectAdd vignette effects to images for dramatic looks. Free, fast, and works entirely in your browser with no sign-up required.
- Free PDF to Image ConverterConvert PDF pages to high-quality JPG or PNG images with adjustable resolution settings. Free, fast, and works entirely in your browser with no sign-up required.
- Free Image Format ConverterConvert images between JPG, PNG, WebP, BMP, and GIF formats in your browser. Free, fast, and works entirely in your browser with no sign-up required.
- PNG to JPG ConverterConvert PNG to JPG free in your browser — no upload, no sign-up. Adjust JPG quality, flatten transparency, and shrink file size instantly with client-side Canvas conversion.
- WebP to PNG ConverterConvert WebP to PNG free in your browser with full alpha transparency preserved. No upload, no sign-up — fast client-side WebP-to-PNG conversion via the Canvas API.
- JPG to WebP ConverterConvert JPG photos to WebP for smaller, faster-loading images. Free browser-based converter with an adjustable quality slider — no upload, no sign-up, and nothing leaves your device.
- OCR — Image to TextExtract text from images, screenshots, and scanned documents free in your browser. No upload — text recognition runs entirely on your device via WebAssembly.
- Free Image Blur ToolBlur images online. Apply Gaussian blur or pixelate effect. Blur selected regions. Free, fast, and works entirely in your browser with no sign-up required.
- Free Image SharpenerSharpen blurry images online using unsharp masking. Before/after comparison view. Free, fast, and works entirely in your browser with no sign-up required.
- Free Online Meme GeneratorCreate memes with custom text on popular templates or your own images. Free, fast, and works entirely in your browser with no sign-up required.
- Free Image Noise ReducerRemove noise and grain from photos online. Apply Gaussian blur and edge-preserving filters with adjustable strength. Free, fast, and works entirely in your browser with no sign-up required.
- Free Image Circle Crop ToolCrop images into a perfect circle online. Ideal for profile pictures, avatars, and logos. Download as transparent PNG. Free, fast, and works entirely in your browser with no sign-up required.
- Free HEIC to JPG ConverterConvert HEIC/HEIF photos from iPhone to JPG online. Free, fast, and private — no files are uploaded to any server. Works entirely in your browser with no sign-up required.
- Free Image Text Overlay ToolAdd custom text to images with full control over font, size, color, position, opacity, and shadow. Download as PNG or JPG.
- Free Image Border & Frame AdderAdd borders and frames to images with customizable width, color, style (solid, double, inset, shadow), padding, and corner radius.
- Free Image Opacity AdjusterAdjust image transparency with a simple slider. Choose white, black, transparent, or custom background. Download as PNG or JPG.
- Free Image UpscalerUpscale images 2x, 3x, or 4x using nearest neighbor, bilinear, or bicubic-approximated algorithms directly in your browser.
- Free GIF Maker from ImagesCreate animated GIFs from multiple images. Drag to reorder frames, set delay, toggle loop, and download the GIF instantly.
- Free GIF to MP4 / WebM ConverterConvert animated GIF files to WebM video format using the browser's MediaRecorder API. No upload required — 100% client-side.
- Free PNG to SVG ConverterConvert PNG images to SVG vector format using edge detection and color tracing. Supports B&W trace and color fill modes. Free, fast, and works entirely in your browser with no sign-up required.
- Free Image Background RemoverRemove image backgrounds in your browser using color tolerance flood-fill. Click to sample background color, adjust tolerance, and download as transparent PNG. No uploads — 100% private.
PDF Tools
21 tools- Free PDF Merger OnlineCombine multiple PDF files into a single document. Free, fast, and works entirely in your browser with no sign-up required.
- Free PDF Splitter OnlineSplit a PDF into multiple files by pages or ranges. Free, fast, and works entirely in your browser with no sign-up required.
- Free Image to PDF ConverterConvert images including JPG, PNG, and WebP to well-formatted PDF documents instantly. Free, fast, and works entirely in your browser with no sign-up required.
- Free PDF Page RemoverRemove specific pages from any PDF document quickly and save the updated file. Free, fast, and works entirely in your browser with no sign-up required.
- Free PDF Page RotatorRotate individual PDF pages by 90, 180, or 270 degrees and save the corrected file. Free, fast, and works entirely in your browser with no sign-up required.
- Free PDF Page Reorder ToolRearrange pages in your PDF document by drag and drop. Free, fast, and works entirely in your browser with no sign-up required.
- Free PDF Compressor OnlineCompress and reduce PDF file size while maintaining document quality and readability. Free, fast, and works entirely in your browser with no sign-up required.
- Free PDF Watermark ToolAdd text or image watermarks to your PDF documents. Free, fast, and works entirely in your browser with no sign-up required.
- Free PDF Password ProtectorAdd password protection and encryption to your PDF files for secure sharing. Free, fast, and works entirely in your browser with no sign-up required.
- Free PDF Unlocker OnlineRemove password protection and unlock restricted PDF files for editing and printing. Free, fast, and works entirely in your browser with no sign-up required.
- Free PDF Page ExtractorExtract specific pages or page ranges from a PDF file. Enter ranges like "1,3,5-8" and download a new PDF with only those pages. 100% client-side.
- Free PDF Metadata EditorView and edit PDF metadata including title, author, subject, keywords, creator, and producer. Download the updated PDF directly from your browser.
- Free PDF to Markdown ConverterConvert PDF documents to Markdown format by extracting text content. Detects headings, paragraphs, and lists. Copy or download the result.
- Free PDF Signature ToolDraw your signature on a canvas and embed it into a PDF file. Choose position and size. Download the signed PDF instantly from your browser.
- Free PDF Redaction ToolBlack out sensitive words, names, and phrases in PDF documents. Upload your PDF, enter terms to redact, and download the redacted version instantly.
- Free PDF Annotation ToolAdd text notes, highlight boxes, and stamps to PDF pages. Specify position, color, and opacity. Download the annotated PDF instantly.
- Free PDF Bookmark EditorView existing bookmarks in a PDF and add new flat bookmarks with custom titles and page numbers. Download the updated PDF instantly.
- Free PDF Form FillerDetect and fill AcroForm fields in PDF documents — text fields, checkboxes, dropdowns, and radio buttons. Download the filled PDF instantly.
- Free PDF to PowerPoint ConverterConvert PDF pages to a PowerPoint (.pptx) presentation. Each page becomes a slide with extracted text. Download the .pptx file instantly.
- Free AI PDF SummarizerExtract an executive summary, key topics, main points, word count, reading time, and sentiment from any PDF. Copy or download the summary as text.
- Free PDF to EPUB ConverterConvert PDF documents to EPUB format for e-readers. Text is extracted from each page and packaged into a standard EPUB 2.0 ZIP file.
Calculator Tools
104 tools- Free Age Calculator OnlineCalculate your exact age in years, months, and days with zodiac signs. Free, fast, and works entirely in your browser with no sign-up required.
- Free Percentage CalculatorCalculate percentages easily with multiple calculation modes. Free, fast, and works entirely in your browser with no sign-up required.
- Free Unit Converter OnlineConvert between units of length, weight, temperature, area, volume, and speed. Free, fast, and works entirely in your browser with no sign-up required.
- Free Byte Converter OnlineConvert between digital storage units with binary and decimal systems. Free, fast, and works entirely in your browser with no sign-up required.
- Free Aspect Ratio CalculatorCalculate and convert aspect ratios with visual preview. Free, fast, and works entirely in your browser with no sign-up required.
- Free Loan Calculator OnlineCalculate monthly payments, total interest, and amortization schedule. Free, fast, and works entirely in your browser with no sign-up required.
- Free BMI Calculator OnlineCalculate Body Mass Index with metric or imperial units. Free, fast, and works entirely in your browser with no sign-up required.
- Free Tip Calculator OnlineCalculate tips for restaurants and services with bill splitting. Free, fast, and works entirely in your browser with no sign-up required.
- Free Discount CalculatorCalculate discounts, sale prices, and savings instantly. Free, fast, and works entirely in your browser with no sign-up required.
- Free Date Difference CalculatorCalculate the difference between two dates in days, weeks, and months. Free, fast, and works entirely in your browser with no sign-up required.
- Free Scientific CalculatorAdvanced calculator with trigonometric and logarithmic functions. Free, fast, and works entirely in your browser with no sign-up required.
- Free Compound Interest CalculatorCalculate compound interest with regular contributions and detailed breakdown. Free, fast, and works entirely in your browser with no sign-up required.
- Free Mortgage CalculatorCalculate monthly mortgage payments with amortization schedule. Free, fast, and works entirely in your browser with no sign-up required.
- Free Savings Goal CalculatorPlan your savings goals with monthly deposits and interest. Free, fast, and works entirely in your browser with no sign-up required.
- Free GPA Calculator OnlineCalculate your GPA with multiple semesters and courses. Free, fast, and works entirely in your browser with no sign-up required.
- Free Time Duration CalculatorAdd and subtract time durations in hours, minutes, and seconds. Free, fast, and works entirely in your browser with no sign-up required.
- Free Fuel Cost CalculatorCalculate trip fuel costs, estimate gas expenses, and compare vehicle fuel efficiency. Free, fast, and works entirely in your browser with no sign-up required.
- Free Investment Returns CalculatorCalculate future investment value with various growth scenarios. Free, fast, and works entirely in your browser with no sign-up required.
- Free Loan Amortization CalculatorView complete amortization schedules for any loan. Free, fast, and works entirely in your browser with no sign-up required.
- Free Retirement CalculatorPlan retirement with savings projections and goal tracking. Free, fast, and works entirely in your browser with no sign-up required.
- Simple Interest CalculatorCalculate simple interest (I = P x r x t) with principal, rate, and time. View month-by-month breakdown and export CSV. Free, fast, and works entirely in your browser with no sign-up required.
- ROI CalculatorCalculate return on investment (ROI), net profit, and annualized ROI (CAGR). Supports optional holding period with CSV export.
- Break-Even CalculatorCalculate break-even point in units and revenue with contribution margin analysis and profit/loss scenarios. Free, fast, and works entirely in your browser with no sign-up required.
- TDEE CalculatorCalculate Total Daily Energy Expenditure and BMR with Mifflin-St Jeor formula. Get calorie targets for cut, maintain, and bulk goals.
- Car Loan CalculatorCalculate monthly car payments with down payment, trade-in, sales tax, APR, and term. Full amortization schedule and CSV export.
- Student Loan CalculatorCalculate student loan monthly payments, total interest, and payoff time. Models grace-period interest and extra-payment savings.
- Paycheck CalculatorEstimate US take-home pay with federal, state, FICA, 401(k), HSA, and health insurance deductions across weekly, bi-weekly, semi-monthly, and monthly pay periods.
- Hourly to Salary CalculatorBidirectional hourly wage and annual salary converter with all pay frequencies (hourly, daily, weekly, bi-weekly, semi-monthly, monthly, annual).
- Calorie CalculatorCalculate daily calorie needs for weight loss, maintenance, or muscle gain. Uses Mifflin-St Jeor and Harris-Benedict BMR formulas with activity multipliers and 4/8/12-week weight projections.
- Macro CalculatorCalculate daily macronutrient targets (protein, carbs, fat) in grams from your calories. Presets for cutting, bulking, keto, low-carb, high-protein, plus custom splits and per-meal breakdowns.
- Body Fat CalculatorCalculate body fat percentage using the US Navy circumference method and BMI-based estimate. Get lean body mass, fat mass, category, and age-group ideal ranges.
- Standard Deviation CalculatorCompute population and sample standard deviation, variance, mean, median, mode, and range with a full step-by-step deviation table. CSV export.
- Dividend CalculatorProject dividend income, DRIP share growth, yield on cost, and total return over any time horizon with tax-aware reinvestment.
- Dollar Cost Averaging (DCA) CalculatorSimulate historical DCA outcomes and project future portfolio growth with recurring contributions. Compare DCA vs lump-sum and export CSV.
- Trading Position Size CalculatorCalculate optimal position size for stocks, forex, crypto, and futures. Risk-based sizing with leverage, R:R ratio, and margin requirements.
- Risk / Reward CalculatorCalculate risk/reward ratios, breakeven win rates, and expected value for long or short trades with up to three take-profit targets.
- Inflation CalculatorCalculate how inflation erodes purchasing power over time. Convert between present and future values with historical US CPI reference data.
- FIRE Number CalculatorCalculate your Financial Independence Retire Early number using the 25x rule and 4% safe withdrawal rate. Includes Lean, Fat, Coast, and Barista FIRE variants.
- Net Worth CalculatorCalculate your net worth by tracking assets and liabilities across categories. Visualize with pie charts, debt-to-asset ratio, liquidity ratio, and US age benchmarks.
- Emergency Fund CalculatorCalculate how much you need in your emergency fund based on expenses, job stability, and dependents. Project growth with HYSA interest.
- Quadratic Equation SolverSolve ax^2 + bx + c = 0 with discriminant analysis, exact radical and complex roots, step-by-step work, vertex/factored forms, and visual parabola graph.
- Grade CalculatorCalculate weighted course grades from assignments and exams, figure out the final exam score you need, and customize letter grade scales.
- Running Pace CalculatorCalculate running pace, time, or distance with kilometer and mile splits plus Riegel race time predictions for 5K, 10K, half, and marathon.
- Free Blood Sugar ConverterConvert blood sugar between mg/dL and mmol/L with reference ranges and HbA1c estimator. Free, fast, and works entirely in your browser with no sign-up required.
- Free Water Intake Timer & SchedulePlan your daily water drinking schedule with timed reminders based on your goals. Free, fast, and works entirely in your browser with no sign-up required.
- Free Step Count to Calories CalculatorCalculate calories burned from step count based on your weight, height, and pace. Free, fast, and works entirely in your browser with no sign-up required.
- Matrix CalculatorPerform matrix addition, multiplication, determinant, inverse, transpose, RREF, rank, and power up to 6x6 with optional step-by-step solutions.
- Crypto Profit CalculatorCalculate cryptocurrency trade profit, ROI, fees, taxes, and break-even price for single trades or dollar-cost averaging.
- Staking Rewards CalculatorCalculate crypto staking rewards with APY, compound frequency, validator fees, and price appreciation. Year-by-year growth projection.
- Mining Profitability CalculatorEstimate crypto mining profit for BTC, ETC, RVN, XMR, KAS, and LTC with electricity cost, pool fees, and hardware breakeven.
- VAT CalculatorAdd or remove VAT with country presets for UK, EU, Switzerland, Australia, Canada GST, UAE, and more. Bulk mode with CSV export.
- Income Tax Calculator (Multi-Country)Estimate income tax across US, UK, Canada, Australia, Germany, and India with bracket-level breakdown, effective/marginal rates, and monthly take-home.
- Forex Pip CalculatorCalculate pip value in quote and account currency for 12 major forex pairs plus gold and silver. Standard, mini, micro, nano lots with R:R and margin.
- Forex Lot Size CalculatorCalculate optimal forex lot size from account balance, risk %, stop loss, and pip value. Standard/mini/micro/nano lots with margin requirements.
- Heart Rate Zone CalculatorCalculate max heart rate and 5 training zones using Tanaka, Haskell, Gulati, or Nes formulas. Includes Karvonen HR reserve zones and workout planner.
- Blood Pressure AnalyzerClassify blood pressure into AHA/ACC categories, calculate pulse pressure and MAP, track readings over time with 7-day average and trend detector.
- Sleep Cycle CalculatorFind the best bedtimes and wake times based on 90-minute sleep cycles. Includes age-based sleep recommendations, nap guide, and sleep quality tips.
- Ideal Weight CalculatorCalculate ideal body weight using Hamwi, Devine, Robinson, and Miller formulas plus a healthy BMI range. Supports metric/imperial, frame size, and current-weight comparison.
- Water Intake CalculatorCalculate daily water intake from body weight, age, activity, climate, and pregnancy/breastfeeding status. Results in liters, oz, cups, and bottles.
- Pregnancy Due Date CalculatorCalculate your estimated due date using last menstrual period, conception date, or ultrasound. Shows current gestational age, trimester, and prenatal milestone timeline.
- Ovulation CalculatorPredict fertile window, peak fertility days, ovulation date, and next period from your last menstrual period and cycle length. Shows 6 upcoming cycles.
- Cryptocurrency ConverterConvert between 15 cryptocurrencies and 10 major fiat currencies with an editable price sheet, conversion matrix, and CSV export. 100% client-side.
- Bond Yield CalculatorCalculate current yield, yield to maturity (YTM), yield to call, Macaulay and modified duration, and cash flow schedules for any bond investment.
- Freelance Rate CalculatorCalculate ideal freelance hourly, daily, weekly, and project rates based on target income, taxes, expenses, and availability.
- Statistics CalculatorComprehensive statistical analysis: mean, median, mode, variance, std dev, IQR, quartiles, percentiles, outlier detection, skewness, kurtosis, histogram, and box plot.
- Math Equation SolverEvaluate math expressions safely (Shunting-yard, no eval), solve linear equations and 2x2 systems, and compute percentage problems with step-by-step solutions.
- BMR CalculatorCalculate Basal Metabolic Rate using Mifflin-St Jeor, Harris-Benedict, Katch-McArdle, and Cunningham formulas. Side-by-side comparison with food equivalents.
- Smoking Cost CalculatorCalculate the financial cost of smoking with projected expenses, investment alternatives, and a health benefits timeline for quitting.
- BAC CalculatorEstimate blood alcohol content using the Widmark formula with drink presets, custom inputs, eating modifier, and metabolization timeline.
- Options Profit CalculatorCalculate profit, loss, and breakeven for stock options. Single-leg and multi-leg strategies: bull call, bear put, iron condor, straddle, strangle.
- Margin Call CalculatorCalculate when a margin call triggers based on equity, loan, maintenance margin, and stock price. Reference table at different maintenance levels.
- Budget PlannerPlan monthly budget with income/expense tracking across 12 categories. 50/30/20 rule analysis, pie chart, and 12-month savings projection.
- Expense TrackerTrack daily expenses by category and payment method. Filter, analyze with bar charts, monthly breakdowns, and CSV export. localStorage persistence.
- Black-Scholes CalculatorCalculate European option prices, Greeks (Delta, Gamma, Theta, Vega, Rho), and sensitivity analysis using the Black-Scholes model.
- Body Shape CalculatorDetermine your body shape type from bust/chest, waist, and hip measurements with style recommendations and visual silhouette.
- Waist-to-Hip Ratio CalculatorCalculate WHR with WHO health risk classification, visual gauge, age-based reference table, and BMI comparison. Free, fast, and works entirely in your browser with no sign-up required.
- Stock Price TrackerTrack stock portfolio with manual price entries, calculate gains/losses, view allocation pie chart. localStorage persistence.
- Cholesterol AnalyzerAnalyze cholesterol panel (Total, HDL, LDL, Triglycerides) per AHA guidelines with ratios, cardiovascular risk, and lifestyle recommendations.
- Child Growth ChartTrack child growth with WHO/CDC percentile charts for weight-for-age, height-for-age, and BMI-for-age with classification badges.
- Free Fraction CalculatorAdd, subtract, multiply and divide fractions and mixed numbers, with the working shown step by step. Exact integer math, simplified answers, decimal and percentage. Free and runs entirely in your browser.
- One Rep Max CalculatorEstimate your 1RM from any set using the Epley, Brzycki or Lombardi formula, with a full percentage table for programming your training loads. Free, instant, and runs in your browser.
- Dog Age CalculatorConvert your dog's age to human years using the size-banded AKC guidance rather than the inaccurate multiply-by-seven rule, alongside the 2020 epigenetic estimate. Free and private.
- Free Concrete CalculatorWork out how much concrete a slab needs in cubic yards, cubic feet and 60 or 80 lb bags. Free, fast, and works entirely in your browser with no sign-up required.
- Free Gravel CalculatorCalculate how much gravel you need in cubic yards, cubic feet and US tons from area and depth. Free, fast, and works entirely in your browser with no sign-up required.
- Free Mulch CalculatorFind how much mulch a garden bed needs in cubic yards, cubic feet and 2 ft³ bags. Free, fast, and works entirely in your browser with no sign-up required.
- Free Topsoil CalculatorWork out how much topsoil you need in cubic yards, cubic feet and US tons. Free, fast, and works entirely in your browser with no sign-up required.
- Free Sand CalculatorCalculate how much sand you need in cubic yards, cubic feet and US tons from area and depth. Free, fast, and works entirely in your browser with no sign-up required.
- Free Paint CalculatorEstimate how much paint a room needs in gallons and cans, with doors and windows deducted. Free, fast, and works entirely in your browser with no sign-up required.
- Free Tile CalculatorWork out how many tiles a floor or wall needs, including a waste allowance and box counts. Free, fast, and works entirely in your browser with no sign-up required.
- Free Drywall CalculatorEstimate drywall sheets, screws and joint compound for a room from its perimeter and wall height. Free, fast, and works entirely in your browser with no sign-up required.
- Free Roofing CalculatorEstimate roofing squares, shingle bundles and true roof area from your footprint and pitch. Free, fast, and works entirely in your browser with no sign-up required.
- Free Stair CalculatorWork out riser height, tread count and total run for a staircase, with a check against IRC limits. Free, fast, and works entirely in your browser with no sign-up required.
- Free Asphalt CalculatorCalculate asphalt tonnage for a driveway or lot from area and compacted depth. Free, fast, and works entirely in your browser with no sign-up required.
- Free Fence CalculatorEstimate posts, rails and pickets for a fence run from its length and post spacing. Free, fast, and works entirely in your browser with no sign-up required.
- Free Deck CalculatorEstimate deck boards, joists and screws from your deck size and board width. Free, fast, and works entirely in your browser with no sign-up required.
- Free Brick CalculatorWork out how many bricks a wall needs from its size, brick format and mortar joint. Free, fast, and works entirely in your browser with no sign-up required.
- Free Paver CalculatorEstimate pavers, bedding sand and edge restraint for a patio or path. Free, fast, and works entirely in your browser with no sign-up required.
- Free Flooring CalculatorWork out how many boxes of flooring a room needs, including waste and underlay. Free, fast, and works entirely in your browser with no sign-up required.
- Free Carpet CalculatorCalculate carpet in square yards and linear feet off the roll, plus padding. Free, fast, and works entirely in your browser with no sign-up required.
- Free Insulation CalculatorEstimate insulation bags or bundles for walls and lofts from area and coverage. Free, fast, and works entirely in your browser with no sign-up required.
- Free Lawn Area CalculatorMeasure lawn area and work out grass seed or sod quantities. Free, fast, and works entirely in your browser with no sign-up required.
- Free Fertilizer CalculatorConvert a nitrogen rate into pounds of fertilizer for your lawn size and N-P-K. Free, fast, and works entirely in your browser with no sign-up required.
- Free Wallpaper CalculatorEstimate wallpaper rolls for a room, accounting for pattern repeat and openings. Free, fast, and works entirely in your browser with no sign-up required.
- Free Cement CalculatorWork out cement, sand and aggregate for a mix-on-site pour from volume and mix ratio. Free, fast, and works entirely in your browser with no sign-up required.
Code Tools
16 tools- Free CSS Minifier OnlineMinify CSS code to reduce file size and improve loading speed. Free, fast, and works entirely in your browser with no sign-up required.
- Free JavaScript MinifierMinify JavaScript code to reduce file size and improve performance. Free, fast, and works entirely in your browser with no sign-up required.
- Free HTML Minifier OnlineMinify HTML code to reduce page size and loading time. Free, fast, and works entirely in your browser with no sign-up required.
- Free SQL Formatter & BeautifierFormat and beautify SQL queries for better readability. Free, fast, and works entirely in your browser with no sign-up required.
- Free Regex Tester & DebuggerTest and debug regular expressions in real-time with explanations. Free, fast, and works entirely in your browser with no sign-up required.
- Free Markdown Preview EditorWrite and preview Markdown in real-time with HTML export. Free, fast, and works entirely in your browser with no sign-up required.
- Free Diff Checker OnlineCompare two texts and highlight differences line by line. Free, fast, and works entirely in your browser with no sign-up required.
- Free HTML Entity EncoderEncode special characters to HTML entities and vice versa. Free, fast, and works entirely in your browser with no sign-up required.
- Free JSON to TypeScript ToolConvert JSON objects to TypeScript interfaces automatically. Free, fast, and works entirely in your browser with no sign-up required.
- Free HTML to JSX ConverterConvert HTML markup to valid JSX syntax for use in React components and projects. Free, fast, and works entirely in your browser with no sign-up required.
- Free Code Screenshot MakerCreate beautiful code screenshots for social media and documentation. Free, fast, and works entirely in your browser with no sign-up required.
- Free HTML Beautifier OnlineFormat and beautify HTML code with proper indentation. Free, fast, and works entirely in your browser with no sign-up required.
- Free CSS Beautifier OnlineFormat and beautify CSS code with sorted properties. Free, fast, and works entirely in your browser with no sign-up required.
- Free JSON Path FinderExplore nested JSON structures and find the exact path to any value in the tree. Free, fast, and works entirely in your browser with no sign-up required.
- Free XML Formatter & ValidatorFormat, beautify, and minify XML documents with syntax validation and error detection. Free, fast, and works entirely in your browser with no sign-up required.
- Free YAML Formatter & ValidatorFormat, beautify, and validate YAML documents with real-time syntax error checking. Free, fast, and works entirely in your browser with no sign-up required.
Converter Tools
55 tools- Free Length Converter OnlineConvert between meters, feet, inches, miles, and more length units. Free, fast, and works entirely in your browser with no sign-up required.
- Free Weight Converter OnlineConvert between kg, pounds, ounces, grams, and more weight units. Free, fast, and works entirely in your browser with no sign-up required.
- Free Temperature ConverterConvert temperatures between Celsius, Fahrenheit, and Kelvin scales instantly. Free, fast, and works entirely in your browser with no sign-up required.
- Free Area Converter OnlineConvert between square meters, acres, hectares, and more. Free, fast, and works entirely in your browser with no sign-up required.
- Free Volume Converter OnlineConvert between liters, gallons, cups, and more volume units. Free, fast, and works entirely in your browser with no sign-up required.
- Free Speed Converter OnlineConvert between mph, km/h, knots, and more speed units. Free, fast, and works entirely in your browser with no sign-up required.
- Free Time Converter OnlineConvert between seconds, minutes, hours, days, and more. Free, fast, and works entirely in your browser with no sign-up required.
- Free Data Storage ConverterConvert between data storage units including bytes, KB, MB, GB, TB, and beyond. Free, fast, and works entirely in your browser with no sign-up required.
- Free Number Base ConverterConvert between binary, decimal, hex, and octal number systems. Free, fast, and works entirely in your browser with no sign-up required.
- Free Currency Converter OnlineConvert between world currencies with live exchange rates. Free, fast, and works entirely in your browser with no sign-up required.
- Free Angle Converter OnlineConvert angle measurements between degrees, radians, gradians, and other units. Free, fast, and works entirely in your browser with no sign-up required.
- Free Pressure Converter OnlineConvert between PSI, bar, Pascal, and more pressure units. Free, fast, and works entirely in your browser with no sign-up required.
- YAML to JSON ConverterConvert YAML to JSON instantly with configurable indentation, pretty-print toggle, and detailed parse error reporting. 100% client-side.
- JSON to YAML ConverterConvert JSON to YAML instantly with configurable indent, line width, and key sorting. 100% client-side — nothing uploaded.
- Free TOML to JSON ConverterConvert TOML configuration files to JSON format instantly in your browser. Free, fast, and works entirely in your browser with no sign-up required.
- Free JSON to TOML ConverterConvert JSON data to TOML configuration format in your browser. Free, fast, and works entirely in your browser with no sign-up required.
- JSON to CSV ConverterConvert JSON arrays or objects to CSV with custom delimiters, header toggle, nested-key flattening, preview table, and one-click .csv download.
- CSV to Markdown Table ConverterConvert CSV to a GitHub-flavored Markdown table with auto-delimiter detection, quoted-field parsing, per-column alignment, and live preview.
- XML to YAML ConverterConvert XML documents to YAML. Handles elements, attributes, text content, mixed content, and repeated sibling arrays. 100% client-side.
- CSV to Excel ConverterConvert CSV files to real XLSX spreadsheets with typed cells, bold headers, and shared-string optimization. Generated via JSZip, all in-browser.
- Hex to Decimal ConverterConvert between hexadecimal, decimal, binary, and octal with step-by-step explanations, BigInt support, and bulk mode. Free, fast, and works entirely in your browser with no sign-up required.
- Epoch to Date ConverterConvert Unix epoch timestamps (seconds, ms, microseconds, nanoseconds) to human-readable dates with timezones, ISO 8601, RFC 2822, relative time, and bulk CSV export.
- Date to Epoch ConverterConvert any date and time to Unix epoch seconds, milliseconds, microseconds, and nanoseconds with timezone support and bulk CSV export.
- SQL INSERT to JSON ConverterParse SQL INSERT statements into JSON arrays or table-grouped objects. Handles multi-row, multi-table, NULL/TRUE/FALSE, escaped strings, and numeric coercion.
- JSON to SQL INSERT ConverterConvert JSON arrays or objects to SQL INSERT statements with dialect-aware quoting (MySQL, PostgreSQL, SQLite, SQL Server), bulk or per-row output, and optional CREATE TABLE inference.
- Timezone ConverterConvert times between 55+ timezones with multi-zone view, world clock, DST detection, and meeting planner with business hours overlap.
- Decimal to Binary ConverterConvert between decimal and binary with step-by-step division/positional visualization, two's complement, IEEE 754 breakdown, and bit manipulation tools.
- Fuel Economy ConverterConvert between MPG (US), MPG (UK), km/L, L/100km, and km/gallon fuel economy units. Free, fast, and works entirely in your browser with no sign-up required.
- Power Unit ConverterConvert between Watt, Kilowatt, Megawatt, Horsepower (mechanical/metric), BTU/hour, Calorie/second, and more. Free, fast, and works entirely in your browser with no sign-up required.
- Energy Unit ConverterConvert between Joules, Kilocalories, Kilowatt-hours, BTU, Electron-volts, Therms, and more energy units. Free, fast, and works entirely in your browser with no sign-up required.
- Cryptocurrency Unit ConverterConvert between crypto subunits: BTC/satoshi, ETH/wei/gwei, SOL/lamport with exact BigInt precision. Free, fast, and works entirely in your browser with no sign-up required.
- Excel to CSV ConverterConvert XLSX to CSV by parsing Office Open XML via JSZip in your browser. Handles shared strings, numbers, booleans, and date serials.
- Centimeters to Inches ConverterConvert centimeters to inches instantly. Free online cm to inches converter that runs entirely in your browser — accurate to 6 decimal places, no sign-up.
- Kilometers to Miles ConverterConvert kilometers to miles instantly. Free online km to miles converter that runs entirely in your browser — accurate to 6 decimal places, no sign-up.
- Meters to Feet ConverterConvert meters to feet instantly. Free online m to ft converter that runs entirely in your browser — accurate to 6 decimal places, no sign-up.
- Millimeters to Inches ConverterConvert millimeters to inches instantly, free in your browser. This mm to inches converter and reference chart returns results accurate to 6 decimal places — no sign-up needed.
- Feet to Inches ConverterConvert feet to inches instantly. Free online ft to in converter that runs entirely in your browser — exact conversion (1 ft = 12 in), no sign-up required.
- Kilograms to Pounds ConverterConvert kilograms to pounds instantly. Free online kg to lbs converter that runs entirely in your browser — accurate to 6 decimal places, no sign-up.
- Ounces to Grams ConverterConvert ounces to grams instantly. Free online oz to g converter that runs entirely in your browser — accurate to 6 decimal places, no sign-up required.
- Celsius to Fahrenheit ConverterConvert Celsius to Fahrenheit instantly. Free online °C to °F converter that runs entirely in your browser using the exact linear formula — no rounding, no sign-up.
- Megabytes to Gigabytes ConverterConvert megabytes to gigabytes instantly. Free online MB to GB converter that runs entirely in your browser — uses the standard decimal ratio (1,000 MB = 1 GB), no sign-up.
- Miles per Hour to Kilometers per Hour ConverterConvert mph to km/h instantly. Free online miles-per-hour to kilometers-per-hour converter that runs entirely in your browser — precise to 6 decimal places, no sign-up needed.
- Liters to Gallons ConverterConvert liters to US gallons instantly. Free online L to gal converter that runs entirely in your browser — accurate to six decimal places, no sign-up required.
- Cups to Milliliters ConverterConvert US cups to milliliters instantly. Free online cup to mL converter that runs entirely in your browser — accurate to 6 decimal places, no sign-up required.
- Square Feet to Square Meters ConverterConvert square feet to square meters instantly. Free online sqft to sqm converter that runs entirely in your browser — accurate to 6 decimal places, no sign-up.
- Acres to Square Feet ConverterConvert acres to square feet instantly. Free online acres to sqft converter that runs entirely in your browser — exact 43,560 multiplier, no sign-up.
- Hectares to Acres ConverterConvert hectares to acres instantly. Free online ha to acres converter that runs entirely in your browser — accurate to 6 decimal places, no sign-up required.
- PSI to Bar ConverterConvert PSI to bar instantly. Free online psi to bar converter that runs entirely in your browser — accurate to 6 decimal places, no sign-up required.
- Yards to Meters ConverterConvert yards to meters instantly. Free online yd to m converter that runs entirely in your browser — accurate to 6 decimal places, no sign-up.
- Stone to Kilograms ConverterConvert stone to kilograms instantly. Free online st to kg converter that runs entirely in your browser — accurate to 6 decimal places, no sign-up.
- Tablespoons to Milliliters ConverterConvert tablespoons to milliliters instantly. Free online tbsp to mL converter that runs entirely in your browser — precise to 14.7868 mL per US tablespoon, no sign-up.
- Gigabytes to Terabytes ConverterConvert gigabytes to terabytes instantly. Free online GB to TB converter that runs entirely in your browser — accurate to 6 decimal places, no sign-up.
- CSV to JSON ConverterFree browser-based CSV to JSON converter with automatic type inference — paste CSV, get pretty-printed JSON instantly. No sign-up, no upload; nothing leaves your device.
- XML to JSON ConverterFree browser-based XML to JSON converter — no sign-up, no upload required. Maps XML attributes to @keys, nests elements, and turns repeated tags into arrays, entirely client-side.
- YAML to TOML ConverterConvert YAML to TOML free in your browser, no sign-up or upload required. Automatically turns nested YAML into TOML tables and array-of-tables, with typed dates and clear null handling.
Developer Tools
25 tools- Free API Tester OnlineTest REST APIs with GET, POST, PUT, DELETE requests. Free, fast, and works entirely in your browser with no sign-up required.
- Free cURL to Code ConverterConvert cURL commands to code in JavaScript, Python, PHP. Free, fast, and works entirely in your browser with no sign-up required.
- Free JSON Schema GeneratorGenerate JSON Schema from your JSON data automatically. Free, fast, and works entirely in your browser with no sign-up required.
- Free HTTP Headers ParserParse and analyze HTTP headers from requests and responses. Free, fast, and works entirely in your browser with no sign-up required.
- Free Git Command GeneratorGenerate common Git commands with a visual interface. Free, fast, and works entirely in your browser with no sign-up required.
- Free .gitignore GeneratorGenerate .gitignore files for any programming language or framework. Free, fast, and works entirely in your browser with no sign-up required.
- Free NPM Package LookupLook up NPM package information, versions, and dependencies. Free, fast, and works entirely in your browser with no sign-up required.
- Free Code Snippet ManagerSave, organize, and manage your reusable code snippets locally in the browser. Free, fast, and works entirely in your browser with no sign-up required.
- Free SQL to MongoDB ConverterConvert SQL queries to MongoDB query syntax for seamless database migration and use. Free, fast, and works entirely in your browser with no sign-up required.
- Free .env File GeneratorGenerate .env files with common variables for different frameworks. Free, fast, and works entirely in your browser with no sign-up required.
- Free JSON to Type GeneratorConvert JSON to TypeScript interfaces, Go structs, or Rust types. Free, fast, and works entirely in your browser with no sign-up required.
- Free Docker Compose GeneratorGenerate docker-compose.yml files with common services. Free, fast, and works entirely in your browser with no sign-up required.
- Color Contrast Checker (WCAG)Check WCAG 2.1 AA/AAA color contrast ratios for text, large text, and UI components. Live previews, APCA reference, accessible pair finder, and favorites.
- CSS Flexbox PlaygroundVisually experiment with flexbox container and item properties. Generate CSS, Tailwind, and HTML output with live preview and presets for common layouts.
- CSS Grid GeneratorVisually design CSS Grid layouts with named areas, presets, and live code output for CSS, Tailwind, and HTML. Free, fast, and works entirely in your browser with no sign-up required.
- CSS Animation GeneratorVisually build @keyframes CSS animations with presets, live preview, cubic-bezier editor, and ready-to-copy CSS, SCSS, and Tailwind output.
- Regex Cheatsheet LookupSearchable reference for 100+ regex tokens with live examples, common pattern library, inline tester, and cross-flavor notes for JS, Python, PCRE, POSIX.
- SVG OptimizerShrink SVG files by stripping editor metadata, comments, default attributes, and excess precision. 100% client-side, no upload.
- HTTP Request / cURL BuilderVisually build HTTP requests and export to cURL, fetch, axios, Node http, Python requests, PHP curl, Go net/http, and HTTPie.
- Cron Expression ParserParse, explain, and preview cron expressions. See next run times, frequency, per-field breakdown, and minute/hour/day heatmaps.
- Multi-Base Encoder / DecoderEncode and decode data in Base16, Base32, Base58 (Bitcoin), Base64, Base64URL, and Base85 (ASCII85). Client-side with file upload support.
- Free OpenAPI Viewer & Swagger Spec ExplorerFree OpenAPI viewer and Swagger viewer. Paste an OpenAPI or Swagger spec to browse endpoints, inspect schemas, and generate cURL commands. Runs entirely in your browser — no upload, no sign-up.
- SVG Path EditorParse, visualize, and transform SVG path d-attribute strings with live preview, editable command table, and path tools. Free, fast, and works entirely in your browser with no sign-up required.
- GraphQL Query BuilderVisually build GraphQL queries, mutations, and subscriptions with dynamic field trees, variables, fragments, and live output.
- Protobuf to JSON SchemaConvert proto3 definitions to JSON Schema, TypeScript interfaces, and sample JSON. Supports messages, enums, nested types, oneof, map, repeated.
Domain Tools
18 tools- Free WHOIS Lookup ToolLook up domain registration information and ownership details. Free, fast, and works entirely in your browser with no sign-up required.
- Free Domain Age CheckerFind out how old a domain is and when it was first registered. Free, fast, and works entirely in your browser with no sign-up required.
- Free SSL Certificate CheckerVerify SSL certificates, check expiration dates, and review certificate chain details. Free, fast, and works entirely in your browser with no sign-up required.
- Free Domain Availability CheckerCheck if a domain name is available for registration. Free, fast, and works entirely in your browser with no sign-up required.
- Free HTTP Headers CheckerView and analyze HTTP response headers from any URL for debugging and SEO audits. Free, fast, and works entirely in your browser with no sign-up required.
- Free Link Extractor OnlineExtract all internal and external links from any webpage URL for SEO analysis. Free, fast, and works entirely in your browser with no sign-up required.
- Free Favicon Grabber ToolDownload and extract the favicon icon from any website URL in multiple sizes. Free, fast, and works entirely in your browser with no sign-up required.
- Free MX Record LookupLook up MX (Mail Exchange) records for any domain. View mail servers and their priority values. Free, fast, and works entirely in your browser with no sign-up required.
- Free NS Record LookupLook up nameserver (NS) records for any domain. Identify your DNS provider instantly. Free, fast, and works entirely in your browser with no sign-up required.
- Free Reverse DNS LookupConvert an IP address to a hostname using PTR record lookup. Identify who owns an IP address. Free, fast, and works entirely in your browser with no sign-up required.
- Free Bulk HTTP Status CheckerCheck HTTP status codes for multiple URLs at once. Identify broken links, redirects, and errors. Free, fast, and works entirely in your browser with no sign-up required.
- Free Domain Name Suggestion ToolGenerate creative domain name ideas from your keywords and check availability across multiple TLDs. Free, fast, and works entirely in your browser with no sign-up required.
- Free DMARC Record CheckerCheck and parse DMARC records for any domain. Validate your email authentication policy. Free, fast, and works entirely in your browser with no sign-up required.
- Free SPF Record CheckerValidate and parse SPF records for any domain. Ensure your email sending policy is correctly configured. Free, fast, and works entirely in your browser with no sign-up required.
- Free DKIM Record CheckerLook up and validate DKIM records for any domain and selector. Verify your email signing keys. Free, fast, and works entirely in your browser with no sign-up required.
- Free DNS Propagation CheckerCheck DNS propagation across multiple global resolvers. See if your DNS changes have propagated worldwide. Free, fast, and works entirely in your browser with no sign-up required.
- DNS Health CheckerRun 8 DNS health checks on any domain using DNS-over-HTTPS. Verify A, AAAA, MX, NS, TXT (SPF/DMARC), SOA, CAA, and CNAME records instantly.
- Subdomain FinderCheck 24 common subdomains using DNS-over-HTTPS. Find active subdomains for any domain — useful for SEO site structure analysis and security audits.
Backlink Tools
21 tools- Free Backlink Checker OnlineAnalyze backlinks pointing to any website or URL and evaluate link quality and authority. Free, fast, and works entirely in your browser with no sign-up required.
- Free Anchor Text AnalyzerAnalyze anchor text distribution and optimization. Free, fast, and works entirely in your browser with no sign-up required.
- Free Link Building FinderDiscover potential websites for link building outreach and guest posting opportunities. Free, fast, and works entirely in your browser with no sign-up required.
- Free Competitor Backlink AnalyzerAnalyze competitor backlink profiles and strategies. Free, fast, and works entirely in your browser with no sign-up required.
- Free Link Juice CalculatorCalculate PageRank flow and link equity distribution. Free, fast, and works entirely in your browser with no sign-up required.
- Free Outbound Link CheckerAudit all outbound links from your pages and check their status and destinations. Free, fast, and works entirely in your browser with no sign-up required.
- Free Reciprocal Link CheckerFind and manage reciprocal link exchanges to ensure mutual linking partnerships work. Free, fast, and works entirely in your browser with no sign-up required.
- Free Link Profile SummaryGet a comprehensive overview of your link profile. Free, fast, and works entirely in your browser with no sign-up required.
- Free Guest Post FinderFind websites accepting guest posts in your niche. Free, fast, and works entirely in your browser with no sign-up required.
- Free Nofollow Link CheckerPaste HTML to instantly find all nofollow, UGC, and sponsored links on a page. Export results as CSV and identify which links block PageRank.
- Free Redirect Chain CheckerCheck if a URL redirects and trace the full redirect chain. Identifies 301, 302, and other redirect types plus canonical URL mismatches.
- Free Anchor Text Distribution AnalyzerAnalyze anchor text distribution from page HTML. Categorizes anchors as exact-match, branded, generic, naked URL, or image — with a visual pie chart.
- Free Link Juice AnalyzerAnalyze which links on a page pass PageRank (link juice) and which are blocked by nofollow, UGC, or sponsored attributes. See your dofollow ratio.
- Toxic Backlink AnalyzerAnalyze backlink URLs for toxicity signals: suspicious TLDs, spam patterns, gambling/adult/pharmacy domains. Score risk levels and generate a Google disavow file.
- Link Velocity CalculatorTrack backlink growth over up to 12 months. Calculate average velocity, peak links, growth trend via linear regression, and velocity score to identify natural vs suspicious patterns.
- Domain Authority EstimatorEducational domain authority estimation based on TLD quality, domain length, and DNS verification. Links to check real DA/DR scores with Moz, Ahrefs, and SEMrush.
- Free Bulk Backlink CheckerAnalyze up to 20 URLs at once for domain quality signals, authority tier, TLD type, and HTTPS status. Free, fast, and works entirely in your browser with no sign-up required.
- Free Backlink Profile ComparatorCompare two domains side-by-side across referring domains, dofollow %, DA, and anchor diversity with visual bar charts. Free, fast, and works entirely in your browser with no sign-up required.
- Free Backlink Profile GraderInput your backlink metrics and receive a Backlink Health Score (0–100) with letter grade and actionable recommendations.
- Free Referring Domains AnalyzerPaste up to 100 referring domains to analyze TLD distribution, domain quality tiers, duplicates, and geographic diversity.
- Free Lost Backlinks TrackerCompare two backlink snapshots to find lost, gained, and retained links with churn rate stats and reclaim recommendations.
Social Media Tools
39 tools- Free Hashtag Generator OnlineGenerate relevant hashtags for your social media posts. Free, fast, and works entirely in your browser with no sign-up required.
- Free Social Media Image ResizerResize images to the perfect dimensions for all major social media platforms. Free, fast, and works entirely in your browser with no sign-up required.
- Free Instagram Caption GeneratorCreate engaging, creative captions for Instagram posts with hashtag suggestions. Free, fast, and works entirely in your browser with no sign-up required.
- Free Social Media Bio GeneratorCreate professional bios for all social media platforms. Free, fast, and works entirely in your browser with no sign-up required.
- Free Link in Bio Page MakerCreate a customizable link-in-bio landing page like Linktree for your social profiles. Free, fast, and works entirely in your browser with no sign-up required.
- Free Post Scheduler PreviewPreview how your posts will look at different times. Free, fast, and works entirely in your browser with no sign-up required.
- Free Engagement Rate CalculatorCalculate engagement rates for social media profiles. Free, fast, and works entirely in your browser with no sign-up required.
- Free Social Media Text FormatterFormat text with bold, italic, and special fonts for social media. Free, fast, and works entirely in your browser with no sign-up required.
- Free Emoji Keyboard OnlineBrowse and copy emojis by category for social media. Free, fast, and works entirely in your browser with no sign-up required.
- Free Twitter Thread MakerSplit long text into Twitter/X threads automatically. Free, fast, and works entirely in your browser with no sign-up required.
- Free Social Share Link GeneratorGenerate share links for all major social media platforms. Free, fast, and works entirely in your browser with no sign-up required.
- YouTube Tag GeneratorGenerate SEO-optimised YouTube tags from a keyword and topic. Niche-aware suffixes, long-tail variants, and a live 500-character usage meter.
- Free YouTube Tag ExtractorExtract and analyze tags from YouTube videos. Get tag suggestions and optimization tips. Free, fast, and works entirely in your browser with no sign-up required.
- Free YouTube Channel ID FinderFind your YouTube Channel ID from any channel URL, handle, or username. Free, fast, and works entirely in your browser with no sign-up required.
- Instagram Bio GeneratorCreate aesthetic, on-brand Instagram bios with line breaks, emoji separators, a 150-character live preview, and bold/italic Unicode text.
- X / Twitter Character Counter (2026)Accurate weighted character counter for X posts with Free (280), Premium (4K), and Premium+ (25K) tiers, URL shortening, and automatic thread splitting.
- Pinterest Pin Description GeneratorGenerate SEO-optimized Pinterest pin descriptions, titles, hashtags, and board suggestions with power words and keyword analysis.
- YouTube Money CalculatorEstimate YouTube channel earnings from views, CPM, niche, and monetization rate with low/mid/high ranges, niche comparison, and growth projection.
- LinkedIn Bio (About) GeneratorGenerate professional LinkedIn About sections with role-specific templates, a live 2600-character counter, and three variants per run.
- LinkedIn Headline GeneratorGenerate 10 optimized LinkedIn headline variants scored on length, CTA, metrics, and keyword density — stays within 220 characters.
- Social Media Card GeneratorDesign shareable blog preview cards with templates, then copy matching Open Graph and Twitter Card meta tags. Export to Twitter, Facebook, LinkedIn, Instagram sizes.
- TikTok Hashtag GeneratorGenerate TikTok-ready hashtags from a keyword and niche with always-on FYP tags, 14 niche banks, keyword variations, and a 2,200-character caption meter.
- Reddit Username GeneratorGenerate 20 Reddit-ready username ideas with vibe controls, 6 style presets, live character validation, and one-click copy or .txt export.
- Facebook Post GeneratorGenerate engaging Facebook posts for announcements, questions, stories, promotions, events, milestones, tips, and behind-the-scenes with tone control and FB-styled preview.
- Free Instagram Hashtag GeneratorGenerate targeted Instagram hashtags for maximum reach. Get categorized hashtag sets for any niche or topic. Free, fast, and works entirely in your browser with no sign-up required.
- Free Multi-Platform Hashtag GeneratorGenerate optimized hashtags for Instagram, Twitter, TikTok, LinkedIn, and YouTube from one tool. Free, fast, and works entirely in your browser with no sign-up required.
- Free Best Time to Post AnalyzerFind the best times to post on Instagram, Facebook, Twitter, LinkedIn, TikTok, and Pinterest for maximum engagement. Free, fast, and works entirely in your browser with no sign-up required.
- Free YouTube Region Restriction CheckerCheck if a YouTube video is region-restricted. Understand geographic content restrictions and verify availability worldwide.
- Free YouTube Video Statistics AnalyzerAnalyze YouTube video statistics. Calculate engagement rate, like ratio, and estimated earnings from any video. Free, fast, and works entirely in your browser with no sign-up required.
- Video CompressorCompress video files online by adjusting quality, resolution, and bitrate. Reduce file size for social media sharing. All processing is in-browser.
- Video to Audio ExtractorExtract audio from video files (MP4, WebM, AVI). Download as high-quality WAV. Choose sample rate and mono/stereo. Runs in your browser.
- Video Frame ExtractorExtract frames from any video as PNG or JPEG images. Set interval, specific timestamps, or every Nth frame. Download all as ZIP.
- Video TrimmerTrim video files online. Set start and end times with a visual timeline or manual input. Download trimmed video as WebM. Free, fast, and works entirely in your browser with no sign-up required.
- Audio CompressorReduce audio file size by adjusting sample rate (44100/22050/16000/8000 Hz), bit depth, and channel count. Download compressed WAV.
- Audio Format ConverterConvert audio files between WAV, OGG Vorbis, and WebM Audio formats. Choose sample rate. Includes audio format comparison guide.
- Audio MergerMerge 2–8 audio files sequentially or as overlapping tracks. Drag to reorder. Normalize output. Download merged WAV. No upload required.
- Audio Pitch ShifterShift audio pitch up or down by up to 12 semitones. Change playback speed from 0.5x to 2x. Preview in browser. Download as WAV.
- TikTok Hook GeneratorGenerate 15 TikTok opening hooks in styles: question, statement, challenge, story, POV, countdown, controversy. Target emotions: Curiosity, Shock, FOMO, Humor, Inspiration.
- Twitter/X Bio GeneratorGenerate 5 Twitter/X bio variations under 160 characters across Funny, Professional, Inspirational, and Casual personality styles with optional emoji toggle.
Utility Tools
92 tools- Free Secure Password GeneratorGenerate secure, random passwords with customizable options. Free, fast, and works entirely in your browser with no sign-up required.
- Free UUID/GUID GeneratorGenerate universally unique identifiers (UUIDs/GUIDs). Free, fast, and works entirely in your browser with no sign-up required.
- Free QR Code Generator OnlineCreate QR codes for URLs, text, WiFi, and contacts. Customize colors, size, and error correction. Free, private — runs in your browser, no sign-up.
- Free JSON Formatter & ValidatorFormat, validate, and beautify JSON data with syntax highlighting and error detection. Free, fast, and works entirely in your browser with no sign-up required.
- Free Base64 Encoder/DecoderEncode any text to Base64 format or decode Base64 strings back to readable text. Free, fast, and works entirely in your browser with no sign-up required.
- Free Color Converter ToolConvert colors between HEX, RGB, HSL, and other formats with a live preview. Free, fast, and works entirely in your browser with no sign-up required.
- Free Unix Timestamp ConverterConvert Unix timestamps to human-readable dates and vice versa with timezone support. Free, fast, and works entirely in your browser with no sign-up required.
- Free SHA Hash GeneratorGenerate SHA-1, SHA-256, SHA-384, SHA-512 hash values. Free, fast, and works entirely in your browser with no sign-up required.
- Free Cron Expression GeneratorGenerate and understand cron expressions with human-readable descriptions. Free, fast, and works entirely in your browser with no sign-up required.
- Free JWT Decoder OnlineDecode JSON Web Tokens (JWT) to view header and payload. Free, fast, and works entirely in your browser with no sign-up required.
- Free Pomodoro Timer OnlineStay focused with the Pomodoro Technique - work sessions with breaks. Free, fast, and works entirely in your browser with no sign-up required.
- Free Invoice Generator OnlineCreate professional invoices for your business with customizable templates and PDF export. Free, fast, and works entirely in your browser with no sign-up required.
- Free Color Palette GeneratorGenerate beautiful color palettes with harmony algorithms. Free, fast, and works entirely in your browser with no sign-up required.
- Free Visual Regex BuilderBuild, test, and debug regular expressions visually with real-time match highlighting. Free, fast, and works entirely in your browser with no sign-up required.
- Free QR Code Scanner OnlineScan QR codes from images and detect content types. Free, fast, and works entirely in your browser with no sign-up required.
- IP Subnet Calculator (IPv4 & IPv6)Calculate IPv4 and IPv6 subnets: network, broadcast, host range, masks, CIDR splits, and binary breakdown. Free, fast, and works entirely in your browser with no sign-up required.
- CIDR Notation ConverterBulk-convert between CIDR blocks, IP ranges, netmasks, and wildcard masks with range aggregation. Free, fast, and works entirely in your browser with no sign-up required.
- Bibliography & Citation GeneratorGenerate citations in APA, MLA, Chicago, Harvard, IEEE, and Vancouver styles for books, journals, websites, and conference papers. BibTeX export.
- CSV ViewerView, sort, filter, and analyze CSV/TSV files online. Paste or upload data to explore in an interactive table with column statistics and type detection.
- Periodic Table ExplorerInteractive periodic table with all 118 elements. Search, filter by category, view properties, and explore states of matter at different temperatures.
- Random Number GeneratorGenerate cryptographically secure random integers, decimals, Gaussian values, dice rolls, and lottery picks — all in your browser.
- Free Physics Formula Lookup & CalculatorSearch 80+ physics formulas by topic with variable definitions and solve-for-any-variable calculator. Free, fast, and works entirely in your browser with no sign-up required.
- Free Essay Outline GeneratorGenerate structured essay outlines with section breakdowns for any essay type. Free, fast, and works entirely in your browser with no sign-up required.
- CSV SplitterSplit large CSV files into smaller chunks by row count, number of files, or column value. Download individually or as a ZIP archive.
- Spaced Repetition SchedulerOptimize learning with SM-2 spaced repetition. Create flashcards, review at optimal intervals, track mastery with a 30-day calendar view.
- JSON Query Tool (jq-like)Query and transform JSON data using jq-like syntax. Extract, filter, and reshape with pipes, selects, maps, sort_by, unique, flatten, and more.
- Data AnonymizerAnonymize sensitive PII in CSV or JSON data. Auto-detects names, emails, phones, SSNs, credit cards, and IPs. Deterministic mode available.
- CSV DeduplicatorRemove duplicate rows from CSV files. Deduplicate by exact match or selected columns with case-insensitive and whitespace trimming options.
- Free Online CSV EditorEdit CSV files in your browser with a table interface. Add, delete, sort, and filter rows. Free, fast, and works entirely in your browser with no sign-up required.
- Free CSV Merger ToolMerge multiple CSV files by stacking rows or joining on a common key column. Free, fast, and works entirely in your browser with no sign-up required.
- Free CSV Filter & Query ToolFilter CSV rows by column conditions with AND/OR logic. Download filtered results. Free, fast, and works entirely in your browser with no sign-up required.
- Free CSV Sorter ToolSort CSV files by one or more columns in ascending or descending order. Free, fast, and works entirely in your browser with no sign-up required.
- Free CSV Column RemoverRemove or reorder columns from CSV files. Rename columns and preview before download. Free, fast, and works entirely in your browser with no sign-up required.
- Free JSONL / NDJSON ViewerView and explore JSONL (newline-delimited JSON) files as a table or formatted JSON list. Free, fast, and works entirely in your browser with no sign-up required.
- Free CSV Pivot Table GeneratorCreate pivot tables from CSV data with sum, count, average, min, and max aggregations. Free, fast, and works entirely in your browser with no sign-up required.
- Free Fake JSON Data GeneratorGenerate fake JSON test data with custom schemas. Supports strings, numbers, dates, emails, and more. Free, fast, and works entirely in your browser with no sign-up required.
- Free Fake User Profile GeneratorGenerate realistic fake user profiles with names, emails, addresses, and more for testing. Free, fast, and works entirely in your browser with no sign-up required.
- Free Audio Speed ChangerChange audio playback speed with pitch correction. Supports MP3, WAV, OGG files. Free, fast, and works entirely in your browser with no sign-up required.
- Free Audio ReverserReverse any audio file online. Play and download the reversed audio as WAV. Free, fast, and works entirely in your browser with no sign-up required.
- Free Online Voice RecorderRecord audio from your microphone in the browser. Play back and download recordings. Free, fast, and works entirely in your browser with no sign-up required.
- Free Browser Screen RecorderRecord your screen, window, or tab directly in the browser. Download as WebM video. Free, fast, and works entirely in your browser with no sign-up required.
- Free Video Rotate & Flip ToolRotate or flip video files 90°, 180°, 270° or flip horizontally/vertically online. Free, fast, and works entirely in your browser with no sign-up required.
- Free Video Thumbnail ExtractorExtract frames and thumbnails from video files. Download as PNG or JPG images. Free, fast, and works entirely in your browser with no sign-up required.
- Free Video to GIF ConverterConvert video clips to animated GIF. Control frame rate, size, and duration online. Free, fast, and works entirely in your browser with no sign-up required.
- Free Audio TrimmerTrim audio files to any start and end point. Preview and download as WAV. Free, fast, and works entirely in your browser with no sign-up required.
- Free MAC Address GeneratorGenerate random valid MAC addresses in multiple formats. Supports custom OUI vendor prefixes. Free, fast, and works entirely in your browser with no sign-up required.
- Free MAC Address Vendor LookupLook up the vendor/manufacturer from a MAC address OUI prefix instantly. Free, fast, and works entirely in your browser with no sign-up required.
- Free TOTP / Authenticator Code GeneratorGenerate TOTP 2FA codes from a secret key. Compatible with Google Authenticator. Free, fast, and works entirely in your browser with no sign-up required.
- Free Flashcard Generator & Study ToolCreate, study, and review flashcards from your notes. Interactive flip cards with spaced repetition-style review. Free, fast, and works entirely in your browser with no sign-up required.
- Free Quiz Maker from NotesConvert your study notes into a multiple choice quiz. Auto-generate questions and answers from any text. Free, fast, and works entirely in your browser with no sign-up required.
- Free Chemistry Equation BalancerBalance chemical equations automatically. Get step-by-step solutions with element count verification. Free, fast, and works entirely in your browser with no sign-up required.
- Free Language Learning FlashcardsLearn vocabulary in Spanish, French, German, Japanese, and more with interactive language flashcards. Free, fast, and works entirely in your browser with no sign-up required.
- Free 3-Way Diff ViewerCompare two or three versions of text side by side. Visualize additions, deletions, and conflicts with color highlighting.
- Free CSV to Chart GeneratorConvert CSV data to beautiful charts online. Create bar, line, pie, scatter, and area charts from your data. Free, fast, and works entirely in your browser with no sign-up required.
- Free SQLite Online ViewerView SQLite database files in your browser. Browse tables, run SQL queries, and export results without any software. Free, fast, and works entirely in your browser with no sign-up required.
- Free Parquet File ViewerInspect Apache Parquet file metadata in your browser. View schema, row counts, column statistics, and file structure. Free, fast, and works entirely in your browser with no sign-up required.
- Free Crypto Portfolio TrackerTrack your cryptocurrency holdings with live prices from CoinGecko. Monitor P&L, total value, and export your portfolio as CSV.
- Free ENS Name Lookup ToolResolve ENS (.eth) names to Ethereum addresses and perform reverse lookups. View avatars and open records in the ENS app or Etherscan.
- Free RSA Key Pair GeneratorGenerate RSA public/private key pairs (1024, 2048, or 4096-bit) in your browser using the Web Crypto API. Nothing is transmitted to any server.
- Free TLS Cipher Suite ReferenceBrowse 25+ TLS cipher suites with security ratings (Recommended/Secure/Weak/Insecure), PFS support, and TLS version filters. Check your site with SSL Labs.
- Free Live Crypto Price TrackerTrack real-time cryptocurrency prices for 15+ coins using CoinGecko API. View 24h change, market cap, and volume. Auto-refreshes every 60 seconds.
- Free Ethereum Gas Fee EstimatorCheck current Ethereum network gas prices using public RPC. Estimates fees for common operations (ETH transfer, ERC-20 swap, NFT mint) in USD.
- Free Ethereum Address ValidatorValidate Ethereum addresses, convert to EIP-55 checksum format, and view raw bytes. Link directly to Etherscan for any valid address.
- Free Crypto Wallet Balance CheckerCheck Ethereum wallet balances on Ethereum, BSC, Polygon, Arbitrum, and Optimism using public RPC endpoints. View balance in ETH and USD.
- Free Multi-Chain Block ExplorerOpen any transaction hash, block number, wallet address, or contract in 15+ blockchain explorers at once. Supports Ethereum, BSC, Polygon, Solana, Bitcoin, and more.
- Free Ethereum ABI DecoderDecode Ethereum smart contract call data using an ABI JSON. Parse function selectors, decode uint256, address, bool, string, and bytes32 parameters.
- Free NFT Metadata ViewerView NFT metadata by contract address and token ID. Fetches token URI via JSON-RPC, resolves IPFS links, and displays image, traits, and collection info.
- Free Bitcoin Units ConverterConvert between BTC, mBTC, μBTC, Bits, and Satoshis in real-time. Includes USD equivalent via live price and transaction fee calculator in sat/vbyte.
- Free Bitcoin Address Generator (Educational)Educational Bitcoin key generator. Generates a random private key, WIF encoding, and a simulated P2PKH Bitcoin address. Learn how Bitcoin addresses are derived with step-by-step explanation.
- Argon2 Password Hash Format ExplorerUnderstand the Argon2 PHC string format, parameter meanings (time cost, memory cost, parallelism), and how Argon2 compares to bcrypt, scrypt, and PBKDF2. Educational tool with simulated hash output.
- Free SSH Key Pair GeneratorGenerate RSA SSH key pairs (2048 or 4096-bit) in your browser using the Web Crypto API. Produces a private key (PEM format), public key (OpenSSH authorized_keys format), and SHA-256 fingerprint.
- Barcode GeneratorGenerate barcodes in various formats including Code128, EAN, UPC. Free, fast, and works entirely in your browser with no sign-up required.
- Border Radius GeneratorGenerate CSS border-radius values with visual preview. Free, fast, and works entirely in your browser with no sign-up required.
- Box Shadow GeneratorCreate CSS box shadows with visual controls and code output. Free, fast, and works entirely in your browser with no sign-up required.
- Color Blindness SimulatorSimulate different types of color blindness on images and colors. Free, fast, and works entirely in your browser with no sign-up required.
- Countdown CreatorCreate countdowns to important dates and events. Free, fast, and works entirely in your browser with no sign-up required.
- Crypto ConverterConvert between cryptocurrencies and fiat currencies. Free, fast, and works entirely in your browser with no sign-up required.
- CSS Unit ConverterConvert between CSS units like px, rem, em, vh, vw. Free, fast, and works entirely in your browser with no sign-up required.
- CSV JSON ConverterConvert between CSV and JSON data formats. Free, fast, and works entirely in your browser with no sign-up required.
- Data URL ConverterConvert files and text to data URLs and back. Free, fast, and works entirely in your browser with no sign-up required.
- Gradient GeneratorCreate CSS gradients with visual controls and code output. Free, fast, and works entirely in your browser with no sign-up required.
- HTTP Status CodesReference guide for HTTP status codes with descriptions. Free, fast, and works entirely in your browser with no sign-up required.
- IP Info LookupLook up IP address information including location and ISP details. Free, fast, and works entirely in your browser with no sign-up required.
- JSON YAML ConverterConvert between JSON and YAML data formats. Free, fast, and works entirely in your browser with no sign-up required.
- Lorem PicsumGenerate placeholder images with customizable dimensions. Free, fast, and works entirely in your browser with no sign-up required.
- Password Strength CheckerCheck password strength and get improvement suggestions. Free, fast, and works entirely in your browser with no sign-up required.
- Placeholder Image GeneratorGenerate placeholder images with custom size, color, and text. Free, fast, and works entirely in your browser with no sign-up required.
- Random String GeneratorGenerate random strings with customizable length and characters. Free, fast, and works entirely in your browser with no sign-up required.
- Online StopwatchOnline stopwatch with lap times and split tracking. Free, fast, and works entirely in your browser with no sign-up required.
- String Escape ToolEscape and unescape strings for various programming languages. Free, fast, and works entirely in your browser with no sign-up required.
- URL Encoder DecoderEncode and decode URLs and URL components. Free, fast, and works entirely in your browser with no sign-up required.
- User Agent ParserParse user agent strings to identify browser, OS, and device. Free, fast, and works entirely in your browser with no sign-up required.
Website Tools
19 tools- Free Website Speed TestAnalyze website page load time, performance metrics, and optimization opportunities. Free, fast, and works entirely in your browser with no sign-up required.
- Free Mobile Friendly TestCheck if your site is optimized for mobile devices. Free, fast, and works entirely in your browser with no sign-up required.
- Free Meta Tag ExtractorExtract and review all meta tags from any webpage for SEO and social media analysis. Free, fast, and works entirely in your browser with no sign-up required.
- Free Website Screenshot ToolCapture full-page or viewport screenshots of any webpage for design review and testing. Free, fast, and works entirely in your browser with no sign-up required.
- Free Accessibility CheckerCheck website accessibility compliance with WCAG standards and get actionable fix suggestions. Free, fast, and works entirely in your browser with no sign-up required.
- Security Headers CheckerPaste HTTP response headers to analyze security config with grading, CSP/HSTS/cookie checks, and cross-origin policy analysis.
- Tech Stack DetectorDetect frameworks, analytics, CDN, and other technologies from pasted HTML source code. Identifies 33+ technologies across 4 categories.
- Content Security Policy BuilderVisually build CSP headers with preset templates, per-directive controls, validation warnings, strictness scoring, and report-only mode.
- Nginx Config GeneratorGenerate production-ready Nginx configs with SSL, reverse proxy, PHP-FPM, gzip, caching, security headers, rate limiting, and redirects. 7 presets included.
- GZIP/Brotli Compression CheckerPaste HTTP response headers to check gzip, Brotli, deflate, or zstd compression. Analyze compressibility, estimated savings, and get server config guides.
- Apache Config GeneratorGenerate Apache VirtualHost and .htaccess configs with SSL, reverse proxy, PHP-FPM, mod_deflate, security headers, rewrites, and directory options. 6 presets.
- Cookie Scanner / AnalyzerPaste Set-Cookie headers or document.cookie to analyze attributes, security flags, categories, GDPR compliance, and generate consent banner templates.
- Free Cache-Control Header AnalyzerParse and understand Cache-Control headers. Visual builder and best practice recommendations. Free, fast, and works entirely in your browser with no sign-up required.
- Free Favicon Checker & AnalyzerAnalyze favicon declarations in HTML head. Check for missing sizes and best practices. Free, fast, and works entirely in your browser with no sign-up required.
- Free Web Font DetectorExtract all fonts used in HTML or CSS. Identify Google Fonts, system fonts, and web fonts. Free, fast, and works entirely in your browser with no sign-up required.
- Free .htaccess Rule TesterTest .htaccess RewriteRules and redirects. Step-by-step rule evaluation for any URL. Free, fast, and works entirely in your browser with no sign-up required.
- Free Website Color Palette ExtractorExtract the complete color palette from any website CSS. Discover brand colors, text colors, and backgrounds. Free, fast, and works entirely in your browser with no sign-up required.
- Free Mixed Content ScannerScan HTML for mixed content issues. Find HTTP resources on HTTPS pages that block or warn in modern browsers. Free, fast, and works entirely in your browser with no sign-up required.
- CORS TesterTest CORS headers and cross-origin resource sharing policies. Free, fast, and works entirely in your browser with no sign-up required.
Security Tools
12 tools- Free Hash Verifier OnlineVerify file integrity by comparing hash checksums. Free, fast, and works entirely in your browser with no sign-up required.
- Free Security Headers AnalyzerCheck website security headers and get improvement suggestions. Free, fast, and works entirely in your browser with no sign-up required.
- Free Encryption/Decryption ToolEncrypt and decrypt text using AES, DES, and other algorithms. Free, fast, and works entirely in your browser with no sign-up required.
- Free HMAC Generator OnlineGenerate HMAC signatures for API authentication using multiple hashing algorithms. Free, fast, and works entirely in your browser with no sign-up required.
- Free CSP Header GeneratorCreate Content Security Policy headers for your website. Free, fast, and works entirely in your browser with no sign-up required.
- Free Secure Random GeneratorGenerate cryptographically secure random values including tokens, UUIDs, and passwords. Free, fast, and works entirely in your browser with no sign-up required.
- Free Privacy Policy GeneratorGenerate a privacy policy for your website or app. Free, fast, and works entirely in your browser with no sign-up required.
- Free Cookie Policy GeneratorCreate a cookie policy compliant with GDPR and CCPA. Free, fast, and works entirely in your browser with no sign-up required.
- Free SRI Hash GeneratorGenerate Subresource Integrity hashes for external scripts. Free, fast, and works entirely in your browser with no sign-up required.
- Free JWT Generator OnlineCreate and sign JSON Web Tokens for authentication. Free, fast, and works entirely in your browser with no sign-up required.
- Bcrypt Hash Generator & VerifierGenerate and verify adaptive password hashes in your browser. Uses PBKDF2-SHA256 via Web Crypto as a pure-JS fallback for bcrypt-style testing.
- Hash IdentifierIdentify hash algorithms from a hash string using length, character set, and distinctive prefixes. Detects MD5, SHA, bcrypt, Argon2, PBKDF2, JWT and more.
Education Tools
3 tools- Study Plan GeneratorGenerate a personalized study schedule for your exams. Input subjects, exam date, and daily hours to get a spaced repetition study calendar. Export as CSV or ICS.
- Vocabulary Builder & FlashcardsBuild vocabulary with digital flashcards featuring flip animations. Study with flashcard mode or multiple-choice quiz. Track correct/incorrect per session. Saves to localStorage. Export as CSV.
- Citation GeneratorGenerate citations in APA, MLA, Chicago, and Harvard formats. Free, fast, and works entirely in your browser with no sign-up required.
Health & Fitness Tools
2 tools- Calorie Deficit CalculatorCalculate your BMR, TDEE, and daily calorie target for weight loss. Uses Mifflin-St Jeor formula. Shows macro split (protein/carbs/fat) and estimated timeline to goal. Metric and imperial units.
- Protein Intake CalculatorCalculate daily protein needs based on weight, activity level, and goal (maintain/build muscle/lose fat/endurance). Shows grams per meal, high-protein food sources with protein per 100g.