Android OS Documentation
Learn more about the OS that powers Android devices around the world.
Android is an open source software stack created for a wide array of devices with different form factors. Learn more about building and contributing to the platform.
Get the Android source
Learn more about source control tools and download the complete Android OS source code.
Submit feedback and fixes
Submit your own contributions to the Android Open Source Project.
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.
Android incorporates industry-leading security features to keep the Android platform and ecosystem safe. Learn more about Android's robust security model and rigorous security program.
The Android OS has robust security right out of the box. Learn more about each of the underlying security features built into the Android platform.
See fixes for possible issues affecting devices running Android, including details from specific device manufacturers.
Follow best practices covering everything from organizational and operational security to user privacy and the entirety of the Android ecosystem.
Android offers a variety of on-device security features you can implement to build the most secure devices possible.
To provide your Android users with a coherent experience as they use your device alongside other Android devices in the ecosystem, apply these established standards to your Android implementation.
More Android devices
Beyond mobile devices, the Android OS serves as a platform for automotive interfaces, unified corporate networks, and entertainment equipment.
See the API reference documentation for the APIs and frameworks available for the Android OS, including HIDL, HAL, and Trade Fed.