SEO tips, tutorials, and guides to help you make the most of our free online tools.
A complete 2026 guide to on-page SEO: search intent, title tags, meta descriptions, URLs, headings, keywords, content depth, internal links, image alt text, schema, and social previews.
Generate an XML sitemap for your website in minutes with a free, browser-based tool, plus tips on lastmod, priority, and submitting to Google.
A complete 2026 guide to technical SEO: crawling, indexing, robots.txt, sitemaps, canonicals, redirects, HTTPS, Core Web Vitals, schema, and hreflang.
Create a robots.txt file in minutes with a free browser-based generator: pick a preset, set crawl rules, add your sitemap, test URLs, and download.
A complete, practical guide to image optimization for the web: formats, compression, sizing, responsive images, lazy loading, alt text, and a raw-to-shipped workflow.
A practical 2026 guide to the free online developer tools every web dev needs: JSON, regex, encoding, hashing, minifying, API debugging, and data conversion.
Learn how to create a QR code for free in your browser — link a URL, text, Wi-Fi, or contact, then download a print-ready PNG or SVG. No sign-up.
Discover the 15 best free SEO tools in 2026 that require no signup. Boost rankings, analyze keywords, and optimize your site instantly online.
Learn how to minify CSS and JavaScript (plus HTML) in your browser to shrink file sizes, cut load times, and ship faster pages.
Learn to test a regular expression in your browser: paste a pattern and sample text, set flags, read live matches and capture groups, and debug.
Convert PNG to WebP free in your browser with The Toolbox image format converter. Step-by-step guide plus tips for JPG, BMP, and quality settings.
Learn how to create a favicon for your website from an image, text, or emoji, then export every size plus the HTML tags in one browser-based step.
Learn what meta tags are and how they impact SEO. This complete guide covers title tags, meta descriptions, and best practices for higher rankings.
Learn how to remove image background for free in your browser with a click-to-sample tool that exports a transparent PNG. No upload, no sign-up.
Run a WHOIS and DNS lookup for any domain in your browser: find registrar, expiry, name servers, and A/MX/TXT records with The Toolbox.
Resize an image online in seconds: set exact pixels or a percentage, lock the aspect ratio, preview the result, and download. No upload, no sign-up.
Convert HEIC to JPG free in your browser, no upload or sign-up. A step-by-step guide using The Toolbox HEIC to JPG converter, plus tips and FAQ.
Learn how to password-protect a PDF in your browser, set a strong password, choose AES encryption, and lock permissions with no upload or sign-up.
Learn how to test website speed with The Toolbox's free in-browser speed test, read the metrics, and fix what's slowing your pages down.
Use this web accessibility checklist to make your site WCAG compliant. Covers color contrast, alt text, keyboard navigation, and free testing tools.
Convert images to PDF in your browser: combine JPG, PNG, or WebP files into one PDF, reorder pages, and set page size, margins, and orientation.
Learn how to split a PDF into separate files for free in your browser, by page range, every N pages, or one file per page, with no upload.
Learn how to compress a PDF without losing quality in your browser: pick a compression level, fine-tune image quality, and download a smaller file.
Learn to check SSL certificate details—expiry, issuer, chain, and TLS settings—using a free in-browser SSL checker, plus how to read the live cert.
Learn how to merge PDF files online for free in your browser - no upload, no sign-up. Combine multiple PDFs into one in a few clicks.
Your complete unit conversion reference guide. Covers length, weight, temperature, volume, and digital units with formulas and free converter tools.
Learn how to decode a JWT in your browser: paste the token, read the header, payload, and claims, and check expiry safely.
Learn how to write an Instagram bio that converts: a clear formula, a step-by-step walkthrough with a free AI bio generator, plus tips and FAQs.
Learn how schema markup works and how to get rich results in Google. Step-by-step guide to structured data for higher click-through rates.
Check password strength in your browser: see entropy, estimated crack time, and a 0-100 score, then fix weak passwords. Free, no upload, no sign-up.
Learn how to generate hashtags for Instagram, TikTok, and more with a free browser tool, plus a strategy for mixing popular and niche tags.
Learn how to generate a strong password in your browser with a free password generator: length, character sets, passphrases, and entropy explained.
Explore the best free online PDF tools for merging, splitting, compressing, and converting PDFs. No signup needed, works in your browser instantly.
Learn how to summarize an article or long text fast: paste it into a free AI summarizer, set the length, and get a clean recap.
Learn how to convert units online for length, weight, and temperature with free in-browser converters, plus tips, rounding advice, and a quick FAQ.
Learn how to write a meta description that earns clicks: ideal length, what to include, and a fast AI-assisted workflow to draft and refine yours.
Learn how to create strong passwords that protect your accounts. Covers password best practices, common mistakes, and free generation tools.
Convert a Unix timestamp to a date in your browser: paste the epoch, pick a timezone, and read the human-readable date instantly.
Learn how to check grammar online for free with an AI grammar checker: paste text, review AI suggestions, and polish your writing in seconds.
Master JSON formatting with best practices for developers. Learn validation, structure, naming conventions, and tools to write cleaner JSON code.
Learn how to convert JSON to CSV in your browser: paste data, pick a delimiter, flatten nested objects, and download a clean spreadsheet file.
Learn how to paraphrase text fast with The Toolbox's free AI Paraphraser: pick a mode, set intensity, freeze key terms, and review every variation.
Learn how to rewrite an article without plagiarizing using an AI article rewriter, plus manual checks to keep your draft original and accurate.
Convert YAML to JSON in your browser: paste, pick indentation, copy clean JSON, and turn JSON back to YAML. No upload, no sign-up.
Learn how to compress images without losing quality. Step-by-step guide covering formats, tools, and techniques for faster websites and better SEO.
Learn how to count the days between two dates in seconds, plus the manual method, business days, and how to include the end date correctly.
Check readability score in seconds with The Toolbox: paste your text, read Flesch and grade-level numbers, and edit until your writing is clear.
Learn how to use a word counter to improve your writing. Discover tips for hitting word counts, tracking readability, and writing better content fast.
Learn how to calculate a discount and sale price fast: the percent-off formula, a free discount calculator, reverse pricing, coupon stacking, and tax.
Convert Markdown to HTML in your browser: paste, pick GFM/sanitize/full-document options, then copy or download clean HTML.
Learn how to calculate a tip fast: use a free tip calculator or do the percentage math by hand, split the bill, and handle tax and rounding.
Learn how to remove duplicate lines from any text in seconds with a free browser tool, including case, sorting, and whitespace options.
Learn how to calculate compound interest by hand and with a free online calculator, including the formula, contributions, and compounding frequency.
Learn how to compare two texts and spot every difference in seconds using a free browser-based diff tool, with views, ignore options, and merge.
Learn how to calculate loan payments fast with a free browser tool, plus the monthly payment formula explained step by step.
Learn how to change text case to uppercase, lowercase, title case, and more in your browser, fast and free with no sign-up.
Calculate your age down to the exact years, months, and days with a free online age calculator. Step-by-step guide plus the formula behind it.
Learn how to calculate your BMI in seconds with a free browser tool, plus the formula, categories, and what the number really means.
Learn how to calculate a percentage three ways by hand and instantly with a free online percentage calculator, with worked formulas and examples.
Learn how to write effective meta titles and descriptions that improve your search rankings and click-through rates.
Learn what schema markup is, why it matters for SEO, and how to implement it on your website to get rich snippets in Google.