Free utility

JWT Payload Decoder

Decode and format an unverified JSON Web Token payload.

Processing stays on this device. Your input is not uploaded, sent to an external service, or saved by Crow Tech.

Workbench

Inputs stay on this page. Use the explicit action to validate and produce a result.

Decode only. The signature is not verified, so the payload is untrusted and token authenticity or validity is not established. Numeric literals that browser number semantics would change are rejected.