Show HN: Magnitude – open-source, AI-native test framework for web apps
Published on: 2025-08-08 12:00:35
Magnitude: The open source, AI-native testing framework for web apps
End-to-end testing framework powered by visual AI agents that see your interface and adapt to any changes in it.
How it works
✍️ Build test cases easily with natural language
🧠 Strong reasoning agent to plan and adjust tests
👁️ Fast visual agent to reliably execute runs
📄 Plan is saved to execute runs the same way
🛠 Reasoning agent steps in if there is a problem
🏃♂️ Run tests locally or in CI/CD pipelines
↕️ Magnitude test case in action! ↕️
test ( 'can add and complete todos' , { url : 'https://magnitodo.com' } ) . step ( 'create 3 todos' ) . data ( 'Take out the trash, Buy groceries, Build more test cases with Magnitude' ) . check ( 'should see all 3 todos' ) . step ( 'mark each todo complete' ) . check ( 'says 0 items left' )
Setup
Install Magnitude
1. Install our test runner in the node project you want to test (or see our demo repo if you don't have a project to try it on)
npm install --save-dev ma
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