🏳️Android Open Source Project

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Android unites the world! Use the open source Android operating system to power your device. COPY

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Android  

Open Source Project

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Use the Android operating system to power your device.

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*   [AOSP](https://source.android.com/)

[](https://source.android.com/docs/setup/build/feature-flagging)

Featured

### [Feature launch flags](https://source.android.com/docs/setup/build/feature-flagging)

Android feature launch flags ensure that the AOSP development branch is stable for everyone. Contributors to AOSP can use feature launch flags to make sure only tested code is executed.

[Read more](https://source.android.com/docs/setup/build/feature-flagging)

[](https://source.android.com/docs/whatsnew/android-15-release)

Featured

### [What's in Android 15](https://source.android.com/docs/whatsnew/android-15-release)

Android 15 is available! Learn about the features added in Android 15 and how to implement them on your devices.

[Read more](https://source.android.com/docs/whatsnew/android-15-release)

Getting started

### [Setup](https://source.android.com/docs/setup)

Learn how to set up your environment, download the AOSP source, build Android, and make contributions.

Security

### [Security](https://source.android.com/docs/security)

Find out how Android incorporates industry-leading security features to keep the Android platform and ecosystem safe.

Core topics

### [Android fundamentals](https://source.android.com/docs/core)

From the basic building blocks of an Android device to the more intricate advanced features, learn about all the ways you can customize the Android OS.

Compatibility

### [Compatibility](https://source.android.com/docs/compatibility)

Ensure your users have a coherent experience as they use your device alongside other Android devices in the ecosystem.

Automotive

### [Automotive](https://source.android.com/docs/automotive)

Learn how to develop and customize the Android Automotive platform, which runs directly on in-vehicle hardware.

Devices

### [Android devices](https://source.android.com/docs/devices)

Read about creating configurable virtual Android devices, managing devices on a corporate network, and delivering live content to devices through Android TV.

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](https://source.android.com/docs/security/bulletin)

### [Security bulletins](https://source.android.com/docs/security/bulletin)

Help protect your device by checking the latest Android Security Bulletins. Also see the Android Automotive, Chromecast, Wear OS, Pixel, and Pixel Watch bulletins.

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](https://source.android.com/docs/setup/start)

### [Android development](https://source.android.com/docs/setup/start)

Learn how to set up your environment, download the source, and start contributing to AOSP through this tutorial.

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](https://source.android.com/docs/core/architecture)

### [Architecture](https://source.android.com/docs/core/architecture)

Learn how the pieces fit together, from the kernel to the HALs to updatable system components.

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](https://source.android.com/docs/core/connect)

### [Connectivity](https://source.android.com/docs/core/connect)

Make sure your devices work together and are connected through Bluetooth, NFC, Wi-Fi, and telephony.