All tools

Convert meters, feet, miles, inches and more — instantly.

Convert kg, lb, oz, stones and tonnes instantly.

Convert Celsius, Fahrenheit, Kelvin and Rankine.

Liters, gallons, cups, fl oz, pints and more.

km/h, mph, m/s, knots and feet per second.

Convert seconds, minutes, hours, days, weeks, years.

Convert degrees, radians, gradians and turns.

Hz, kHz, MHz, GHz, RPM and BPM.

Square meters, feet, acres, hectares and more.

Joules, kWh, calories, BTU, electronvolts.

Watts, kilowatts, horsepower, BTU/h.

Pascals, bar, psi, atmospheres, mmHg, torr.

Bytes, KB, MB, GB, TB, PB — decimal and binary.

Real-time exchange rates for 30+ world currencies — free.

Real-time Bitcoin, Ethereum and top coin prices.

Hourly to annual, monthly, weekly and daily.

Convert times between any two timezones.

Unix timestamps ↔ human-readable dates.

Convert JSON to XML or XML to JSON — both directions.

Beautify, minify and validate JSON — free, no signup.

Turn CSV into JSON or JSON into CSV — both directions.

Convert YAML to JSON or JSON to YAML — both directions.

Beautify and indent ugly SQL queries.

Beautify, minify and validate XML — instantly.

Beautify and minify HTML — Prettier defaults.

Beautify and minify CSS stylesheets.

Prettier-formatted JS & TS, in the browser.

Normalise YAML indentation and structure.

Normalise markdown with Prettier.

Format GraphQL queries and schemas.

Parse JSON with comments and trailing commas.

Convert JSON arrays to Excel or Excel sheets to JSON.

Generate v4 UUIDs in bulk — cryptographically secure.

Turn any text into a URL-friendly slug.

Test JavaScript regular expressions live.

camelCase, snake_case, kebab-case and more.

Convert HTML to Markdown or Markdown to HTML — both directions.

Encode and decode Base64 — Unicode-safe.

Convert between hex, binary, octal and decimal.

HEX, RGB, HSL and modern OKLCH — instantly.

Closest Tailwind class for any HEX color.

Convert px, rem, em, pt and more.

Compute ratios and resize dimensions.

Strip metadata and whitespace from SVG icons.

Convert PNG, JPG and WebP — in your browser.

Resize images to exact pixel dimensions.

Shrink image file size with one click.

Remove GPS and camera metadata before sharing.

Render SVG markup to a high-resolution PNG.

Convert CSV to .xlsx or Excel back to CSV — both directions.

Shrink PDF file size — in your browser.