Tested tool guide
Tested browser tools
Checked August 16, 2026
What Webhook Tester does, with a checked example
This tool issues a unique, disposable URL that you paste into a third-party service's webhook or callback field instead of your real backend. Any request that arrives at that URL, whatever the method, is captured and listed with its headers, query string, and raw body, usually within moments of being sent. The most common surprise is that the tool's own reply to the sender is generic, not the acknowledgment your real handler would return, so senders that inspect the response body or retry on an unexpected one may behave differently than once you're actually receiving requests.
Worked example
A concrete input and expected output from the current implementation.
Input
curl -X POST https://<generated-endpoint> -H 'Content-Type: application/json' -H 'X-Event-Type: payment.success' -d '{"amount":42,"currency":"usd"}' ->
Expected output
A new entry appears in the request log: method POST, Content-Type: application/json, X-Event-Type: payment.success, and body {"amount":42,"currency":"usd"} shown pretty-printed as JSON, alongside the arrival timestamp and source IP. The tool does not transform the request; it stores and displays it as sent, so every header and the body appear verbatim.