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Request Catcher vs WebHook Tester: catalog facts
Request Catcher	WebHook Tester
Free Free to use in the browser.	Free Free to use; the source code is published on GitHub.
Web	Linux, Self-hosted
Choose a subdomain and start receiving requests immediately Catches requests sent to any path on the subdomain	Runs on your own server, so payloads stay in-house Docker, Compose and Helm deployment files included
Only records requests; no responses, transforms or workflows Captured traffic passes through a public third-party service	You have to host and maintain it yourself In-memory storage means captured requests are not kept long term
Web application	Self-hosted
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.