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KeployWireMock
Free

The core tool is open source.

 Freemium

The core engine is free and open source; WireMock Cloud has a free tier and paid plans.

Command line Web, Self-hosted, Command line
  • Builds tests and mocks from recorded API traffic
  • No code changes needed in the application
  • Flexible request matching and response templating
  • Record and playback of real service traffic
  • Built around recorded traffic, so coverage depends on what is captured
  • Not a manual request client like Postman
  • Standalone mode needs Java or Docker
  • Collaboration features are in the paid cloud product
Downloadable app Downloadable app, Self-hosted, Hosted service
Open source Open source
License not stated License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked October 1, 2026

Checked September 24, 2026

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