Developer Utility
Webhook Signature Verifier Tool
Verify common webhook signatures (Stripe, GitHub, generic HMAC) locally.
Language: HashUtility: ValidateUtility: InspectUtility: Generate
Run verification to see results.
What This Tool Does
Verify webhook signatures locally before wiring handlers into production environments.
Use it to inspect or transform input quickly, then carry validated output into code, tests, or API requests.
Common Use Cases
- Check Stripe or GitHub signature validation logic quickly.
- Debug failing webhook verification during setup.
- Confirm payload and secret handling without redeploying backend code.
Common Pitfalls
- Wrong signed payload format will produce false negatives.
- Clock/timestamp handling rules vary between providers.
FAQ
Can I verify provider-specific formats?
Yes, common presets are included with generic HMAC support.
Why does verification fail with the right secret?
Check exact payload bytes and timestamp prefix rules.
Does this tool send data to a backend?
Most tools process input client-side in your browser unless explicitly noted.