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JWT Decoder
Decode and inspect JWT tokens
Paste a JWT token above and click Decode.
How to Use This Tool
1
Paste Your JWT Token
Paste a JSON Web Token into the input field. The tool accepts tokens in the standard header.payload.signature format.
2
View Decoded Parts
The header and payload are automatically decoded and displayed as formatted JSON. Each section is color-coded for clarity.
3
Check Claims & Expiry
Review the token claims including issuer (iss), subject (sub), expiration (exp), and other standard or custom claims.
Example
Input
eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiIxMjM0NTY3ODkwIn0.signature
Output
Header: {"alg":"HS256"} | Payload: {"sub":"1234567890"}
Pro Tips
- The expiration timestamp is automatically converted to a human-readable date.
- All decoding happens in your browser — your tokens are never sent to any server.
- Color-coded sections make it easy to identify header, payload, and signature.