Webhook HMAC Verify Desk

Paste secret + raw body + signature header → recompute HMAC (Stripe/GitHub/Shopify-style) and match.

Use freeFull core runs in your browser — no account required.

ProFree core + $3.99 pro. One-time unlock on this device.

Local-firstYour data stays in the browser unless you export it.

Provider shape

Signing secret

Secret encoding

Raw request body (exact bytes matter — no pretty-print) Signature header value

Timestamp / msg id (if required)

Stripe tolerance (seconds)