Converter Tools

Free unit converters for length, weight, temperature, area, volume, speed, and more. Quick and accurate conversions.

32 free tools available

Free Length Converter Online

Convert 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 Online

Convert between kg, pounds, ounces, grams, and more weight units. Free, fast, and works entirely in your browser with no sign-up required.

Free Temperature Converter

Convert temperatures between Celsius, Fahrenheit, and Kelvin scales instantly. Free, fast, and works entirely in your browser with no sign-up required.

Free Area Converter Online

Convert between square meters, acres, hectares, and more. Free, fast, and works entirely in your browser with no sign-up required.

Free Volume Converter Online

Convert between liters, gallons, cups, and more volume units. Free, fast, and works entirely in your browser with no sign-up required.

Free Speed Converter Online

Convert 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 Online

Convert between seconds, minutes, hours, days, and more. Free, fast, and works entirely in your browser with no sign-up required.

Free Data Storage Converter

Convert 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 Converter

Convert between binary, decimal, hex, and octal number systems. Free, fast, and works entirely in your browser with no sign-up required.

Free Currency Converter Online

Convert between world currencies with live exchange rates. Free, fast, and works entirely in your browser with no sign-up required.

Free Angle Converter Online

Convert 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 Online

Convert between PSI, bar, Pascal, and more pressure units. Free, fast, and works entirely in your browser with no sign-up required.

YAML to JSON Converter

Convert YAML to JSON instantly with configurable indentation, pretty-print toggle, and detailed parse error reporting. 100% client-side.

JSON to YAML Converter

Convert JSON to YAML instantly with configurable indent, line width, and key sorting. 100% client-side — nothing uploaded.

Free TOML to JSON Converter

Convert 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 Converter

Convert 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 Converter

Convert 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 Converter

Convert CSV to a GitHub-flavored Markdown table with auto-delimiter detection, quoted-field parsing, per-column alignment, and live preview.

XML to YAML Converter

Convert XML documents to YAML. Handles elements, attributes, text content, mixed content, and repeated sibling arrays. 100% client-side.

CSV to Excel Converter

Convert CSV files to real XLSX spreadsheets with typed cells, bold headers, and shared-string optimization. Generated via JSZip, all in-browser.

Hex to Decimal Converter

Convert 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 Converter

Convert 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 Converter

Convert any date and time to Unix epoch seconds, milliseconds, microseconds, and nanoseconds with timezone support and bulk CSV export.

SQL INSERT to JSON Converter

Parse 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 Converter

Convert 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 Converter

Convert times between 55+ timezones with multi-zone view, world clock, DST detection, and meeting planner with business hours overlap.

Decimal to Binary Converter

Convert between decimal and binary with step-by-step division/positional visualization, two's complement, IEEE 754 breakdown, and bit manipulation tools.

Fuel Economy Converter

Convert 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 Converter

Convert 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 Converter

Convert 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 Converter

Convert 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 Converter

Convert XLSX to CSV by parsing Office Open XML via JSZip in your browser. Handles shared strings, numbers, booleans, and date serials.

Guides & tutorials

Step-by-step guides to get the most out of these tools.

How to Convert YAML to JSON (and Back)How to Convert JSON to CSV How to Convert a Unix Timestamp to a Date How to Convert Units (Length, Weight, and Temperature)

About Converter Tools

The Converter Tools turn one unit — or format — into another, instantly and accurately. Convert length, weight, temperature, area, volume, speed, time, and data-storage units, plus number bases and common file formats, with clearly labeled inputs and results you can trust.

They serve students, engineers, travelers, and developers who need reliable conversions without ads getting in the way. Everything runs locally with no account required. For computed results like percentages and finance see our Calculator Tools, and for code-format conversions see our Code Tools.

Related categories

Calculator Tools Code Tools Image Tools