JWT Decoder and Generator

Decode, inspect, and generate JWT tokens for testing and debugging.

Decode JWT

Paste a JWT token (header.payload.signature) to view the header and payload as JSON. The signature is not validated, only shown.

JWT token

Header (JSON)

Payload (JSON)

Signature (base64url)

Build a JWT from a JSON payload. You can generate unsigned tokens (alg: none) or HMAC SHA-256 tokens (HS256).

Algorithm

Secret (HS256)

Payload (JSON)

Generated JWT token