Small, focused tools for the everyday developer grind, formatting, encoding, testing, converting. Nothing to install, nothing to sign up for.
Beautify HTML, CSS, JS, PHP and C# with one click.
Format, validate, minify and sort JSON with clear error locations.
Live matches, capture groups and flags, highlighted as you type.
Inspect header and payload claims, with expiry checked instantly.
Encode and decode text or files, with URL-safe output.
Percent-encode or decode query strings and full URLs.
SHA-1, SHA-256, SHA-384 and SHA-512 for text or files.
Bulk-generate v4 or v7 UUIDs, upper or lowercase.
Unix, ISO 8601 and local time, converted both ways.
HEX, RGB and HSL conversion, plus an eyedropper for images.
Convert between PNG, JPG, WebP and BMP, or wrap as SVG.
Preview any URL across common phone, tablet and desktop sizes.