Developer Tools
Everyday utilities for working with JSON, tokens, encodings and expressions.
- JWT DecoderDecode a JSON Web Token to read its header, payload and registered claims, with expiry checked against the current time. Nothing leaves your browser.
- Base64 Encoder / DecoderEncode text to Base64 or decode Base64 back to text, with full Unicode support and a URL-safe variant. Runs entirely in your browser.
- JSON Formatter & ValidatorFormat, minify and validate JSON with precise error positions, so you can find the exact character where parsing failed.