Free JWT Decoder Online

Decode JWT tokens, build and sign new tokens, and verify signatures. All JWT operations run locally in your browser — your tokens are never sent to any server.

🔍JWT DecoderDecode any JWT token and inspect its header, payload, and signature.🔏JWT EncoderBuild a JWT token by entering header and payload JSON with a secret key.✅JWT VerifierVerify a JWT token signature using your secret key or public key.