JWT Decoder
Decode and validate JSON Web Tokens
JWT Token
Decoded JWT information will appear here
Enter a JWT token and click "Decode JWT" to see the header, payload, and signatureAbout JWT Tokens
JWT Structure
- Header - Algorithm and token type
- Payload - Claims and user data
- Signature - Verification signature
Common Claims
sub- Subject (user ID)exp- Expiration timeiat- Issued at timenbf- Not before time
Security Notes
Important: This tool only decodes JWT tokens. It does not verify signatures as that requires the secret key. Never share your secret keys or private tokens.