Maestro

Repository: mobile-dev-inc/Maestro Homepage

Metrics as of 2026-09-22, from the GitHub or GitLab API of each repository. Refreshed monthly.

What Maestro is

Maestro is an open-source framework for UI and end-to-end testing of Android, iOS and web apps. Tests are written as flows: flat lists of YAML commands such as launchApp, tapOn and assertVisible. Flows run on emulators, simulators, browsers and physical Android devices; physical iOS devices are not supported yet. The framework drives apps through the platform accessibility layer and installs as a single binary without drivers or SDKs. The same commands apply to React Native, Flutter, native, Ionic and hybrid apps. The CLI requires Java 17 or higher. It includes an MCP server that lets coding agents control an app on a live device.

Written from the project's README, read 2026-09-22.

Category: Mobile automation
License: Apache-2.0
Language: Kotlin
Changelog: Releases on GitHub

Repository metrics

Repository metrics
Stars	15,752¹
Forks	966¹
Open issues and PRs	524¹
Contributors	121¹
Commits in the last 90 days	97¹
Last commit	2026-09-18¹
Last release	cli-2.10.0, 2026-08-31¹
Fetched	2026-09-22

¹ Fetched from the GitHub or GitLab API on 2026-09-22. Hover a value for its own date.

Status

activeLast commit within 90 days of the fetch date.

Computed from the last commit date and the archive flag on the fetch date. See the status rules.

Alternatives

Listed mobile automation tools, same primary language first, then by GitHub stars. Each line gives one fact from the tool's documentation where it differs from Maestro's, with its source.

Kakao: Languages for writing tests: Kotlin. source: README
Appium: Languages for writing tests: Official clients for Java, Python, Ruby and .NET C#; third-party clients for other languages. source: README
Detox: Languages for writing tests: JavaScript. source: README
WebdriverIO: Languages for writing tests: Node.js. source: README
EarlGrey: Languages for writing tests: Swift (3.0 and 2.3) and Objective-C test targets. source: Docs: Install and Run
WebDriverAgent: Mobile platforms: iOS and tvOS, on devices and simulators. source: README
Patrol: Languages for writing tests: Dart (Flutter tests). source: Docs: Write your first test
AndroidX Test: Languages for writing tests: JUnit 4 tests; runner docs show Kotlin and Java samples. source: Docs: AndroidJUnitRunner

Comparisons

How to install

curl -fsSL "https://get.maestro.mobile.dev" | bash

From README, read 2026-09-22.

Questions

Is Maestro open source?

Yes. Maestro is released under Apache-2.0, an OSI-approved license, as reported by the GitHub API on 2026-09-22.

Is Maestro maintained?

On 2026-09-22, the last commit to the default branch was on 2026-09-18, so the listed status is active. Rule: Last commit within 90 days of the fetch date.

How many GitHub stars does Maestro have?

15,752 stars on 2026-09-22, from the GitHub API. The number is refreshed at each monthly update.

What language is Maestro written in?

The repository's primary language, as reported by the GitHub API, is Kotlin.

How do I install Maestro?

The README gives this command: curl -fsSL "https://get.maestro.mobile.dev" | bash

Sources

GitHub REST API: repository, read 2026-09-22
GitHub REST API: commits, read 2026-09-22
GitHub REST API: latest release, read 2026-09-22
GitHub REST API: contributors, read 2026-09-22
README, read 2026-09-22