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WireMockMockServer
Freemium

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

 Free

Free and open source with no SaaS account needed.

Web, Self-hosted, Command line Self-hosted, Command line
  • Flexible request matching and response templating
  • Record and playback of real service traffic
  • Mocks and proxies HTTP up to HTTP/3 plus gRPC
  • Records and replays real traffic
  • Standalone mode needs Java or Docker
  • Collaboration features are in the paid cloud product
  • Aimed at developers and test setups rather than manual API exploration
  • Configuration takes some learning for complex scenarios
Downloadable app, Self-hosted, Hosted service Downloadable app, Self-hosted
Open source Open source
License not stated License not stated
No account needed No account needed
Works offline Works offline

Checked September 24, 2026

Checked September 24, 2026

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