JWT Decoder
Developer ToolsDecode JSON Web Tokens (JWT) to inspect header and payload.
100% client-side — your text never leaves your browser
Input
0 characters|0 words|0 lines
Output
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How to Use
- Paste a JWT token (three base64 parts separated by dots).
- The header and payload are decoded and pretty-printed as JSON.
- Copy the decoded JSON for debugging or verification.