Best Free Online Webhook Tester

Testing webhook integrations during development is one of the more awkward parts of building with third-party APIs. Services like Stripe, GitHub, Shopify, and Twilio send webhook events to publicly accessible URLs — but your local development server isn't on the public internet. devtoolkit.sh's Webhook Trap generates a unique, publicly accessible URL for you to use as a webhook endpoint. Any HTTP request sent to that URL — any method, any headers, any body — is captured and displayed in real time. You can inspect the complete request: method, path, headers, query parameters, and body (with JSON bodies prettified). This makes it easy to see exactly what a service sends when an event fires, verify your webhook signature validation logic, and debug malformed payloads. The captured URL is session-based and requires no signup. It's also useful for inspecting what data a third-party tool sends during initial setup, before you've written a single line of handler code — a much faster way to understand the payload structure than hunting through documentation.