|Your everyday productivity workspaceDecode and inspect JWT tokens entirely in your browser. Private and secure.
This tool only decodes — it does not verify the signature. Token processing happens entirely in your browser.
01
Paste Token
Paste your JWT token into the input
02
Decode
Decode header, payload, and signature
03
Inspect
Review claims and expiry status
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Our free JWT Decoder inspects JSON Web Tokens by decoding the header, payload, and signature. See claims, expiry status, and algorithm used.
All decoding happens entirely in your browser. Tokens are never sent to any server, keeping your credentials private.
Essential for developers debugging OAuth, API authentication, and session tokens during development and testing.
Read the full guide: How to decode a JWT token online
Inspect token claims when authentication fails.
Verify issuer, audience, and scope claims in tokens.
See if a token is expired before troubleshooting 401 errors.
Understand JWT structure with real token examples.
Decode customer tokens to diagnose login issues (with permission).