WI

WireMock

Flexible API mocking and service virtualization

Developer Tools & Git ★ 7.3k stars Medium setup Apache-2.0

WireMock is an open-source tool for mocking HTTP-based APIs and simulating service behavior. It can be run as a standalone self-hosted server for testing and development against virtualized dependencies.

Key features

  • HTTP API mocking
  • Request matching and stubbing
  • Fault and latency simulation
  • Record and playback

Strengths

  • Released under the Apache-2.0 license
  • First-class Docker support for quick deployment
  • Mature project with 7.3k GitHub stars
  • Written in Java

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