JWT Debugger
A simple, client-side tool to decode and inspect JSON Web Tokens.
Encoded JWT
Decoded Header
Decoded Payload
Decode JWT header and payload without sending tokens to a server. Useful for debugging OAuth, API auth, and session tokens during development.
How to use JWT Debugger
- Paste a JWT token into the input field.
- View decoded header and payload as formatted JSON.
- Check claims like exp, iss, sub, and custom fields.
See also: Base64 Encoder/Decoder, Hash Generator
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Frequently Asked Questions
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