Command line tools

The Android SDK is composed of multiple packages that are required for app development.This page lists the most important command line tools that areavailable, organized by the packages in which they're delivered.

You can install and update each package usingAndroid Studio's SDK Manageror the sdkmanagercommand line tool.All of the packages are downloaded into your Android SDK directory, whichyou can locate as follows:

• In Android Studio, click File > Project Structure.
• Select SDK Location in the left pane. The path is shown under Android SDK location.

Android SDK Tools

Located in: android_sdk/tools/bin/See also: SDK Tools release notes

This package is platform independentand required no matter which Android platform you are developing on.

If you just need these tools because you're not using Android Studio, you candownload the SDK Tools here.

• apkanalyzer
• Provides insight into the composition of your APK after the build process completes.
• avdmanager
• Allows you to create and manage Android Virtual Devices (AVDs) from the command line.
• jobb
• Allows you to build encrypted and unencrypted APK expansion files in Opaque Binary Blob (OBB) format.
• lint
• A code scanning tool that can help you to identify and correct problems with the structural quality of your code.
• monkeyrunner
• Provides the command line interface for running program that can install an Android app or test package, run it, send keystrokes to it, takes screenshots, and more.
• sdkmanager
• Allows you to view, install, update, and uninstall packages for the Android SDK.
  This package includes other tools that you don't need to invoke from thecommand line (such as ProGuard for code shrinking and obfuscation).

Android SDK Build Tools

Located in: android_sdk/build-tools/version/See also: SDK Build Tools release notes

This package is required to build Android apps. Most of the tools in here areinvoked by the build tools and not intended for you. However, the followingcommand line tools might be useful:

• aapt2
• Parses, indexes, and compiles Android resources into a binary format that is optimized for the Android platform, and packages the compiled resources into a single output.
• apksigner
• Signs APKs and checks whether APK signatures will be verified successfully on all platform versions that a given APK supports.
• zipalign
• Optimizes APK files by ensuring that all uncompressed data starts with a particular alignment relative to the start of the file.
  Note: You can have multiple versions of the build toolsto build your app for different Android versions.

Android SDK Platform Tools

Located in: android_sdk/platform-tools/See also: SDK Platform Tools release notes

These tools are updated for every new version of the Android platform to support new features(and sometimes more often to fix or improve the tools), and each updateis backward compatible with older platform versions.

In addition to downloading from the SDK Manager, you candownload the SDK Platform Tools here.

• adb
• Android Debug Bridge (adb) is a versatile tool that lets you manage the state of an emulator instance or Android-powered device. You can also use it to install an APK on a device.
• etc1tool
• A command line utility that lets you encode PNG images to the ETC1 compression standard and decode ETC1 compressed images back to PNG.
• fastboot
• Flashes a device with platform and other system images. For flashing instructions, see Factory Images for Nexus and Pixel Devices.
• logcat
• This is a tool invoked via adb to view app and system logs.

Android Emulator

Located in: android_sdk/emulator/See also: Android Emulator release notes

This package is required to use the Android Emulator. It includes the following:.

• emulator
• A QEMU-based device-emulation tool that you can use to debug and test your applications in an actual Android run-time environment.
• mksdcard
• Helps you create a disk image that you can use with the emulator, to simulate the presence of an external storage card (such as an SD card).
  Note: Prior to revision 25.3.0, the emulator tools were included with theSDK Tools package.

Jetifier

Jetifier reads a library that usesSupport Library classes, and outputs an equivalent library that uses the newerAndroidX classes.