Jetpack is a suite of libraries to help developers follow best practices, reduce boilerplate code, and write code that works consistently across Android versions and devices so that developers can focus on the code they care about.
Improve app scalability and testing with simplified dependency injection
Load and display small chunks of data to reduce network bandwidth and system resource usage with a library that is Kotlin-first and coroutines compatible
Build camera apps quickly with improved reliability

Learn to use Jetpack

Learn the essential Jetpack libraries in the Android Kotlin Fundamentals Course and reduce boilerplate in your app
Get hands-on with three Jetpack libraries that simplify your data layer: LiveData, ViewModel and Room
Explore how the most popular Jetpack libraries are used together in a production-level app

* Popular and often-used libraries are listed first

activity *Access composable APIs built on top of Activity.
appcompat *Allows access to new APIs on older API versions of the platform (many using Material Design).
camera *Build mobile camera apps.
databinding *Bind UI components in your layouts to data sources in your app using a declarative format.
fragment *Segment your app into multiple, independent screens that are hosted within an Activity.
lifecycle *Build lifecycle-aware components that can adjust behavior based on the current lifecycle state of an activity or fragment.
navigation *Build and structure your in-app UI, handle deep links, and navigate between screens.
paging *Load data in pages, and present it in a RecyclerView.
room *Create, store, and manage persistent data backed by a SQLite database.
test *Testing in Android.
work *Schedule and execute deferrable, constraint-based background tasks.
adsGet an advertising ID with or without Play Services.
annotationExpose metadata that helps tools and other developers understand your app's code.
archHelper for other arch dependencies, including JUnit test rules that can be used with LiveData.
asynclayoutinflaterInflate layouts asynchronously to avoid jank in the UI.
autofillImprove autofill accuracy via extending hints.
benchmarkAccurately measure your code's performance within Android Studio.
biometricAuthenticate with biometrics or device credentials, and perform cryptographic operations.
browserDisplay webpages in the user's default browser.
carDevelop driving-friendly applications for an Android-powered car.
cardviewImplement the Material Design card pattern with round corners and drop shadows.
collectionReduce the memory impact of existing and new collections that are small.
composeDefine your UI programmatically with composable functions that describe its shape and data dependencies.
concurrentMove tasks off the main thread with coroutines and take advantage of ListenableFuture.
constraintlayoutPosition and size widgets in a flexible way with relative positioning.
contentpagerLoad and page across ContentProvider data in a background thread.
coordinatorlayoutPosition top-level application widgets, such as AppBarLayout and FloatingActionButton.
coreTarget the latest platform features and APIs while also supporting older devices.
cursoradapterExpose Cursor data to a ListView widget.
customviewImplement custom views.
documentfileView a file document.
drawerlayoutImplement a Material Design drawer widget.
dynamicanimationCreate smooth animations with a physics-based animation API.
emojiDisplay emoji in current and older devices.
enterpriseCreate enterprise-read applications.
exifinterfaceRead and write image file EXIF tags.
gamingUse the Android Game SDK natively in your app to perform complex gaming tasks, like Frame Pacing.
gridlayoutImplement a grid layout.
heifwriterEncode an image or image collection in HEIF format using the available codecs on the Android device.
hiltExtend the functionality of Dagger Hilt to enable dependency injection of certain classes from the androidx libraries.
interpolatorUse animation interpolators on older platforms.
jetifierA standalone tool that migrates a library's dependencies on the deprecated support library to equivalent AndroidX dependencies.
leanbackWrite apps for Android TV devices using dpad-friendly widgets and template fragments.
legacyThis artifact and its classes are deprecated. Starting with Android 8, background check restrictions make this class no longer useful.
loaderLoad data for your UI that survives configuration changes.
localbroadcastmanagerThis artifact and its classes are deprecated. Use LiveData or reactive streams instead.
mediaShare media contents and controls with other apps. Superseded by media2.
media2Share media contents and controls with other apps.
mediarouterEnable media display and playback on remote receiver devices using a common user interface.
multidexDeploy applications with multiple dex files on pre-Android 5 devices.
paletteExtract representative color palettes from images.
percentlayoutThis artifact and its classes are deprecated. Use ConstraintLayout and associated layouts instead.
preferenceBuild interactive settings screens without needing to interact with device storage or manage the UI.
printPrint photos, docs, and other graphics and images from your app.
recommendationPromote content to the Android TV Launcher home screen.
recyclerviewDisplay large sets of data in your UI while minimizing memory usage.
remotecallbackCreate a wrapper that makes it easier for developers to provide a PendingIntent.
savedstateWrite pluggable components that save the UI state when a process dies, and restore it when the process restarts.
securitySafely manage keys and encrypt files and sharedpreferences.
sharetargetProvide backwards compatibility for using shortcuts as direct share targets.
sliceDisplay templated UI elements outside your app.
slidingpanelayoutImplement a sliding pane UI pattern.
startupImplement a straightforward, performant way to initialize components at app startup.
sqliteWork with local SQLite databases. If possible, use Room instead.
swiperefreshlayoutImplement the swipe-to-refresh UI pattern.
textclassifierIdentifies conversations, links, selections, and other similar constructs in text.
tracingWrite trace events to the system trace buffer.
transitionAnimate motion in the UI with starting and ending layouts.
tvproviderProvide Android TV channels.
uiWorks with the Jetpack Compose library.
vectordrawableRender vector graphics.
versionedparcelableProvides a stable and compact binary serialization format that can be passed across processes or persisted safely.
viewpagerDisplay Views or Fragments in a swipeable format. If possible, use viewpager2 instead.
viewpager2Display Views or Fragments in a swipeable format.
wearCreate applications for Wear OS by Google smartwatches.
webkitWork with modern WebView APIs on Android 5 and above.
windowHelps support different device form factors such as foldable devices.
Hilt Dependency Injection Alpha
Hilt is a new library built on top of Dagger that defines a lightweight way to do dependency injection, customized for Android apps.
Paging 3.0 Alpha
Rewritten to use Kotlin Coroutines and add many highly requested features, this library helps you load and display small chunks of data incrementally.
AppStartup Alpha
Provides a straightforward and performant way to initialize components at application startup by avoiding a separate ContentProvider for each library.

Why use Android Jetpack?

Built around modern design practices, Android Jetpack Libraries enable fewer crashes and less memory leaks with backwards-compatibility baked in.
Android Jetpack manages tedious activities like background tasks, navigation, and lifecycle management, so you can focus on what makes your app great.
Reduce complexity with libraries that work consistently across Android versions and devices.

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