JWT Decoder
Paste a JSON Web Token (JWT) to decode and inspect its header and payload. Our tool works entirely in your browser, so your tokens are never sent to a server.
JWT Input
Header
...Payload
...What is a JWT?
A JSON Web Token (JWT) is a compact, URL-safe means of representing claims to be transferred between two parties. The claims in a JWT are encoded as a JSON object that is used as the payload of a JSON Web Signature (JWS) structure or as the plaintext of a JSON Web Encryption (JWE) structure, enabling the claims to be digitally signed or integrity protected with a Message Authentication Code (MAC) and/or encrypted.