Free online developer tools for encoding, hashing, testing, and debugging. All processing happens in your browser.
Format, validate, and beautify JSON data instantly.
Encode and decode Base64 strings quickly.
Encode and decode URLs and query strings.
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes.
Test and debug regular expressions in real time.
Convert between Unix timestamps and human-readable dates.
Generate random UUIDs (v4) for your projects.
Generate QR codes from text, URLs, or any data.
Decode and encode JSON Web Tokens instantly.
Compare two texts side by side with highlighting.