About JWT Decoder
Decode and inspect any JWT token to visualize its header, payload and expiration status.
How to use JWT Decoder
- 1Paste your full JWT token into the input field.
- 2Click "Decode" — the header, payload and signature are displayed as formatted JSON.
- 3Check the temporal validity: the tool shows whether the token is expired or still valid.
- 4Copy the header, payload or signature individually using the corresponding icons.
Tips
- A JWT does not encrypt data — never store sensitive information in the payload.
- The iat (issued at) and exp (expiration) fields are Unix timestamps — the tool automatically converts them to readable dates.
- Use this tool to debug authentication errors or verify a token's claims during development.
Related guides
OneKitTools TeamUpdated 2.21.4