Maestro
Open source end to end UI testing framework for mobile and web apps. Write your first test in under 5 minutes.
What it is
Maestro is an open source end to end testing framework built specifically for mobile and web applications. It lets anyone, from developers to QA testers to non technical team members, write and run UI tests using a simple YAML syntax. The framework supports iOS, Android, and web apps built with any technology: React Native, Flutter, SwiftUI, Jetpack Compose, NativeScript, .NET MAUI, Capacitor, and more. Maestro Studio is a free desktop IDE that provides a visual testing experience with an element inspector, action recording, and an AI assistant (MaestroGPT) trained on the Maestro framework. For teams that need to run tests at scale, Maestro Cloud provides enterprise grade cloud infrastructure with parallel test execution, CI/CD integration, and detailed analytics. The project has over 14,000 GitHub stars and is trusted by companies including Microsoft, Meta, DoorDash, Uber, xAI, Amazon, Disney, Stripe, Kraken, Block, Deel, DuckDuckGo, Brex, Flipkart, IKEA, Atlassian, Pinterest, and Bluesky. Maestro was created by Mobile Dev Inc, which positions the tool as the answer to a new era where AI accelerated development has shifted the bottleneck from building speed to quality control.
Who it is for
Mobile development teams who need reliable UI testing across iOS and Android without learning separate testing frameworks for each platform
QA engineers and testers looking for a modern, simple alternative to Appium, Detox, or XCUITest with less flakiness and faster setup
Non technical team members who want to create and maintain UI tests through a visual IDE without writing code
Teams using React Native, Flutter, or other cross platform frameworks who want a single testing tool that works across all their targets
Engineering organizations that need CI/CD integrated testing at scale with parallel execution and analytics
Pros and cons
Pros
- +Extremely simple YAML syntax makes test creation accessible to anyone on the team, not just developers with testing framework experience
- +True cross platform coverage: one framework tests iOS, Android, and web apps regardless of the underlying technology stack
- +Free and open source CLI plus a free desktop IDE means zero cost to get started and evaluate the tool thoroughly
- +Used by top tier companies (Microsoft, Meta, Uber, Amazon, Stripe, Disney) which validates reliability at scale
- +Maestro Studio's visual inspector and action recording dramatically reduce the time to create new tests
- +Built for the AI era where development speed has increased and quality assurance becomes the bottleneck
Cons
- −Cloud pricing starts at $250/device/month for mobile and $125/browser/month for web, which can add up quickly for teams needing many concurrent devices
- −The YAML syntax, while simple, may feel limiting for teams that need complex test logic or custom assertions beyond what the framework provides
- −Maestro Studio's web testing support is still in beta, so web app testing may have rough edges compared to the mature iOS and Android support
- −Smaller ecosystem and community compared to established tools like Appium, which has years of plugins, integrations, and documentation
Pricing
- Maestro CLI
- Maestro Studio desktop IDE
- MaestroGPT AI assistant
- Everything in the free local tier
- Hosted Android, iOS, and web devices
- Parallel runs for faster execution
- Everything in Cloud
- SSO
- Premium, dedicated support
Prices change; check the official pricing →