Traditional end-to-end web application testing is brittle, requiring constant updates due to changes in the user interface. Maintaining these tests is time-consuming and resource-intensive, diverting engineering effort from feature development.

Magnitude is an open-source, AI-native testing framework that allows developers to create and run end-to-end web application tests using natural language. The platform uses visual AI agents that can "see" the interface and adapt to changes, reducing the need for manual test maintenance. Magnitude integrates with existing test frameworks like Playwright and CI/CD pipelines, enabling continuous testing with minimal overhead. By describing test cases in natural language, Magnitude simplifies test creation and makes them more resilient to UI updates.

Natural language test case creation, allowing tests to be written as descriptions of user behavior

Visual AI agents that dynamically adapt to UI changes, reducing test breakage

Integration with Playwright for low-level actions and state management

Intelligent test caching for fast and repeatable test execution

Support for various Large Language Models (LLMs) for test planning, including Gemini 2.5 Pro, Sonnet 3.5/3.7, and GPT-4o

Flexible vision model options, including a free cloud API (Moondream) and self-hosting capabilities

Compatibility with existing CI/CD pipelines for automated testing

Magnitude is designed for web application developers and QA engineers who want to reduce the maintenance burden of end-to-end testing and increase test coverage.