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Developer/JWT Decoder / Debugger

JWT Decoder / Debugger

Decode JWT header and payload locally. No token leaves your browser.

100% LOCAL100% localHS256/RS256Expire checkNo upload
Paste JWT
Data Source & Legal Disclaimer
Effective: Current
Sources: RFC 7519 — JSON Web Token (JWT)

⚠️ Decoding runs 100% locally in your browser — your JWT is never uploaded. Never paste production access tokens or sensitive credentials into any online tool. This decoder only reads the header and payload; it does NOT verify signatures and must not be used to trust token contents.

Joke of the Day
Jul 28

What do you call a shoe made from a banana peel?

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