JWT Encoder
Create JWT tokens with custom header and payload JSON, optional HMAC secret signing, and expiration (exp/iat) control for API testing.
Local processing / privacy notice
- Inputs are processed in your browser session.
- We do not send raw input/output values to our analytics endpoint.
- Use reset/clear actions when working with confidential data.
For this tool: header, payload, secret, and generated tokens stay client-side.