JWT Decoder

Decode and verify JSON Web Tokens.

JWT Decoder

For RSA algorithms, please paste your public key.

About JWT

JWT (JSON Web Token) is a compact, URL-safe means of representing claims to be transferred between two parties. The decoder helps you verify and understand the contents of a JWT token.

Supported Algorithms:
HMAC Algorithms
  • HS256 - HMAC with SHA-256
  • HS384 - HMAC with SHA-384
  • HS512 - HMAC with SHA-512
RSA Algorithms
  • RS256 - RSA with SHA-256
  • RS384 - RSA with SHA-384
  • RS512 - RSA with SHA-512
Decode and verify JSON Web Tokens (JWT) to inspect their header, payload, and signature. Validate token expiration, issuer, and other claims. Essential tool for debugging authentication issues and understanding JWT structure in your applications.