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JWT Decoder
Decode and inspect JWT tokens
Actions:
How to Use
1Paste your JWT token
2The tool automatically decodes header and payload
3View the token contents and expiration
4Verify the token structure
Features
Header and payload decoding
Expiration time display
Base64 URL decoding
Token structure validation
Copy individual sections
Benefits
Debug JWT authentication issues
Verify token contents
Inspect tokens during development
Frequently Asked Questions
Does it verify JWT signatures?
No. The tool decodes the token for inspection. Signature verification requires the secret key.
Can it decode expired tokens?
Yes. The tool decodes any valid JWT regardless of expiration status and shows when it expired.
What JWT algorithms are displayed?
The tool shows the algorithm (HS256, RS256, etc.) in the header section of the decoded token.