JWT Decoder
Decode and inspect JSON Web Tokens
JWT Token
Features
- Decode JWT header and payload
- View all token claims
- Check expiration time
- Syntax highlighted output
- Copy decoded sections
Frequently Asked Questions
What is a JWT?
A JSON Web Token (JWT) is a compact, URL-safe token format used for authentication and information exchange. It contains a header, payload, and signature.
Does this tool validate JWT signatures?
No, this tool only decodes the token contents. Signature validation requires the secret key and should be done server-side.