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Open Source Automated Testing Tools

A curated collection of the best open source tools for automating software testing, covering unit, integration, and end-to-end suites plus browser and API test runners..

Turn production traffic into regression tests, no code changes
  • Stars

    Stars growing over the last 30 days19,529
  • Last commit

    9 hours ago
  • License

    Apache-2.0
Captures real API traffic and dependency calls via eBPF to generate tests and mocks automatically, then replays them in CI to catch regressions before they ship.

Open Source Alternative to:

Open-source testing agent for UI, API, security, accessibility & visual QA
  • Stars

    Stars growing over the last 30 days1,216
  • Last commit

    10 days ago
  • License

    AGPL-3.0
Hercules is the first open-source testing agent, enabling zero-code, zero-maintenance UI, API, security, accessibility, and visual validations.

Open Source Alternative to:

Visual regression testing made effortless
  • Stars

    1,676
  • Last commit

    7 months ago
  • License

    MIT
Automated visual testing tool that detects UI changes, ensures consistency, and accelerates development workflows.

Open Source Alternative to:

Visual regression testing for seamless UI development
  • Stars

    Stars growing over the last 30 days657
  • Last commit

    2 days ago
  • License

    MIT
Automate visual testing, catch UI bugs early, and collaborate effortlessly with your team to maintain pixel-perfect interfaces.

Open Source Alternative to: