All Tools
Developer Tools
JWT Decoder
Decode and inspect JSON Web Tokens. View header, payload, and signature information with expiration validation.
Private
Instant
No signup
JWT Token
Example Tokens
Frequently Asked Questions
What is a JWT token?
JWT (JSON Web Token) is a compact, URL-safe means of representing claims to be transferred between two parties. It consists of three parts: header, payload, and signature.
How does JWT validation work?
JWT validation typically involves checking the signature, expiration time (exp), and issuer (iss). The signature ensures the token hasn't been tampered with.
What are the common JWT claims?
Common claims include: sub (subject), exp (expiration), iat (issued at), iss (issuer), aud (audience), and custom claims specific to your application.