JWT Decoder

Decode and inspect JWT tokens

JWT (JSON Web Token) decoder allows you to inspect the header and payload of JWT tokens. Note: This tool does not verify signatures.

JWT Token

What is JWT (JSON Web Token)?

JWT is an open standard (RFC 7519) used to securely transmit information between parties as a JSON object. Tokens can be digitally signed, which ensures the content is verifiable and trustworthy.

JWT Structure

A JWT consists of three parts separated by a dot (.) :

Header: Token type (JWT) and signing algorithm
Payload: Claims - user information and metadata
Signature: Signature of the header and payload