Magnitude

lastmod 2025-04-28created 2025-04-281 edits

Open-source AI-native testing framework for web apps

Features

• An AI-based open-source E2E testing framework for web apps
• Write test cases easily in natural language; a reasoning AI agent creates the test plan, and a visual AI agent recognizes and adapts to UI changes to run the tests
• Combines multimodal LLMs and vision models for fast, accurate UI tests; plans are saved so they can always run the same way
• When a problem occurs, the reasoning agent fixes it automatically
• Supports CI/CD integration and runs tests in a way similar to Playwright. Tests can run in CI environments (GitHub Actions, etc.)
• Why not use OpenAI Operator or Claude Computer Use?
  • Magnitude is designed with planning and execution separated
  • Optimized for running tests in terms of speed, reliability, and cost, compared with general-purpose desktop/web task APIs
  • Provides its own separate runner to maximize reliability, speed, and cost efficiency
• Recommended LLMs
  • Planner model: a general multimodal LLM (recommended: Gemini 2.5 Pro)
  • Executor model: Moondream, a fast vision LLM

See also

• e2e
• Cypress

Favorite site

• Github - magnitudedev/magnitude
• Magnitude - Open-source AI-native testing framework for web apps | GeekNews