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