JWT Decoder

Decode JSON Web Tokens (JWT) perfectly securely.

JWT Decoder

Encoded Token (JWT)

Tokens are decoded locally in your browser. We never send your JWTs to a remote server.

Paste a JSON Web Token on the left to securely view its decoded Header and Payload payload here.

Browser-Based JWT Decoding

Because JSON Web Tokens (unless encrypted) are simple Base64URL encoded strings containing JSON, we can decode and format the contents using standard browser APIs. Since we do not verify the signature, we can do this 100% locally on your machine for maximal security.