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Hoverfly

Lightweight service virtualization and API simulation

Developer Tools & Git ★ 2.5k stars Medium setup Apache-2.0

Hoverfly is a lightweight service virtualization tool that captures and simulates HTTP and HTTPS traffic for testing. It lets teams replace slow or unavailable dependencies with simulations.

Key features

  • Capture and replay traffic
  • Service virtualization
  • Latency and fault simulation
  • Lightweight Go binary

Strengths

  • Released under the Apache-2.0 license
  • First-class Docker support for quick deployment
  • Active community (2.5k GitHub stars)
  • Written in Go

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