Format JSON, decode JWTs, hash text, and other coding utilities. Fast, secure, and always browser-local with zero server uploads.
Format, minify, and validate JSON data instantly with syntax highlighting.
Encode text and files to Base64, or decode Base64 back to raw data.
Encode and decode URLs properly for safe transmission over the internet.
Decode JSON Web Tokens locally. View header, payload, and expiry without sending secrets to any server.
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes securely in the browser.
Generate single or bulk v4 UUIDs instantly.
Generate high-quality QR codes for URLs, text, Wi-Fi, and contacts with SVG/PNG download support.
Convert colors between HEX, RGB, HSL, and HSV with live previews.
Test regular expressions safely and instantly highlight matches in your test strings.
Convert Unix timestamps (seconds and milliseconds) to human-readable dates and vice versa.