HMAC-Base64 Generator

Runs fully in your browser. No API calls. Payload order + types are enforced.

GitHub

AIA Payload

RawBody (strict order)

Hmac-Base64

Note: Your secret key is used locally in this page to compute HMAC. Don’t use this on an untrusted machine.

CORS Proof Demo

This browser call should fail unless the backend explicitly allows this GitHub Pages origin.

Page Origin
Result Not run yet

Expected outcome on GitHub Pages when CORS is not configured: the request is sent, but JavaScript cannot read the response and the browser reports a CORS error.