JWT Debugger
Decode and display JWT token contents
JWT Token
Paste your JWT token here
Decoded Token
Decoded data will appear here
Paste a JWT token and click Decode
About JWT
JSON Web Token (JWT) is an open standard (RFC 7519) for securely transmitting information between parties as a JSON object.
Header
Contains the token type (JWT) and the signing algorithm (e.g., HMAC, RSA)
Payload
Contains the claims - statements about the user and additional data
Signature
Used to verify the token hasn't been altered and authenticate the sender
Security Note
This tool only decodes JWT tokens. It does NOT validate signatures. Never paste sensitive tokens from production systems into online tools.