- Mashape Relocation API (Development Aid)
requires 1 permissions: android.permission.INTERNET 
- Android Support v4 (Development Framework)
The Android Support Library is not actually a single library, but rather a collection of libraries that can roughly be divided into two groups: compatibility and component libraries. For details, please see
Understanding the Android Support Library.
- AndroidX Activity (Utility)
provides the base Activity subclass and the relevant hooks to build a composable structure on top.
- Android Jetpack Annotations (Utility)
library that contains the annotations for Android Jetpack.
- Arch (Utility)
helper for other arch dependencies, including JUnit test rules that can be used with LiveData.
- AppCompat (Utility)
support newer Android features on older Android versions.
- Biometric (Utility)
authenticate with biometrics or device credentials, and perform cryptographic operations.
- Browser (Utility)
display webpages in the user's default browser.
- Cardview (UI Component)
AndroidX library to implement the Material Design card pattern with round corners and drop shadows.
- Android Support Library collections (Utility)
standalone efficient collections.
- Concurrent (Utility)
AndroidX library to help move tasks off the main thread with coroutines and take advantage of ListenableFuture.
- Constraint Layout Library (Utility)
library to reduce the number of nested views needed.
- Coordinatorlayout (UI Component)
AndroidX library to position top-level application widgets, such as AppBarLayout and FloatingActionButton.
- Androidx Core (Utility)
a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs.
- AndroidX Cursor Adapter (Utility)
static library support version of the framework's CursorAdapter.
- Android Support Library Custom View (UI Component)
a module to implement custom views. Part of the Android Support Library.
- Documentfile (UI Component)
a library to view a file document.
- Drawerlayout (UI Component)
AndroidX library to implement a Material Design drawer widget.
- Dynamicanimation (UI Component)
create smooth animations with a physics-based animation API.
- Android Emoji2 Compat (UI Component)
core library to enable emoji compatibility in Kitkat and newer devices to avoid the empty emoji characters.
- Exifinterface (Utility)
a library to read and write image file EXIF tags.
- AndroidX Fragment (UI Component)
AndroidX library to encapsulate part of the user interface or behavior into reusable components.
- Interpolator (UI Component)
AndroidX library to use animation interpolators on older platforms.
- androidx.legacy (Utility)
a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs.
- Lifecycle (Utility)
perform actions in response to a change in the lifecycle status of another component, such as activities and fragments.
- Loader (Utility)
library to load data for your UI that survives configuration changes.
- AndroidX Local Broadcast Manager (Utility)
an application-wide event bus and embraces layer violations in your app: any component may listen events from any other.
- Android Multi Dex Library (Utility)
helps deploying applications with multiple dex files on pre-Android 5 devices.
- Preference (Utility)
a library to build interactive settings screens without needing to interact with device storage or manage the UI.
- Print (Utility)
a library to print photos, docs, and other graphics and images.
- ProfileInstaller (Utility)
AndroidX library that enables libraries to prepopulate ahead of time compilation traces to be read by ART.
- ResourceInspection (Development Aid)
AndroidX library to surface the attributes of custom views in Android Studio’s Live Layout Inspector.
- Recyclerview (Utility)
display large sets of data in your UI while minimizing memory usage.
- Android Activity Saved State (Utility)
provides the base Activity subclass and the relevant hooks to build a composable structure on top.
- Slidingpanelayout (UI Component)
AndroidX library to implement a sliding pane UI pattern.
- Startup (Utility)
AndroidX library to implement a straightforward, performant way to initialize components at app startup.
- Swiperefreshlayout (UI Component)
implemtation of the swipe-to-refresh UI pattern.
- AndroidX Test (Development Framework)
an extensive framework for testing Android apps.
- Tracing (Utility)
AndroidX library to write trace events to the system trace buffer.
- Transition (UI Component)
animates motion in the UI with starting and ending layouts.
- Vectordrawable (UI Component)
AndroidX library to render vector graphics.
- Android Jetpack VersionedParcelable (Utility)
Provides a stable but relatively compact binary serialization format that can be passed across processes or persisted safely.
- Viewpager (UI Component)
AndroidX library to display Views or Fragments in a swipeable format.
- AndroidX Widget ViewPager2 (UI Component)
replaces AndroidX ViewPager, addressing most of its predecessor’s pain-points, including right-to-left layout support, vertical orientation, modifiable Fragment collections, etc.
- Jetpack WindowManager Library (Utility)
enables application developers to support new device form factors and multi-window environments. The library provides a common API surface for API versions 14 and later. Especially provides additional functionality on foldable devices.
- java-jwt (Utility)
a Java implementation of JSON Web Token (JWT).
- Azure SDK for JavaⓃ (Development Framework)
client libraries for the cloud computing service operated by Microsoft for application management via Microsoft-managed data centers.
- okhttp-digest (Utility)
a digest authenticator for okhttp.
- Woodstox (Utility)
Stax XML API implementation.
- Subsampling Scale Image View (UI Component)
view with pan and zoom gestures for displaying huge images without loss of detail.
- Dropbox Core SDK for JavaⓃ (Utility)
a Java library to access Dropbox's HTTP-based Core API v2.
- FasterXML Jackson (Utility)
a fast and compliant streaming JSON parser/writer with a StAX-like API and support for marshalling/unmarshalling POJOs via annotations.
- Google Material Design (Utility)
library to help with material design guidelines.
- Google Core Libraries for Java 6+ (Utility)
a set of core libraries that includes new collection types (such as multimap and multiset), immutable collections, a graph library, functional types, an in-memory cache, and APIs/utilities for concurrency, I/O, hashing, primitives, reflection, string processing, and much more.
- Error Prone (Utility)
a static analysis tool for Java that catches common programming mistakes at compile-time.
- Google Gson (Utility)
A Java serialization/deserialization library to convert Java Objects into JSON and back.
- J2ObjC (Utility)
Java to Objective-C Translator and Runtime.
- RxBinding (Utility)
RxJava binding APIs for Android's UI widgets.
- Microsoft Azure Active Directory Authentication Library (Utility)
support for Work Accounts in Microsoft Azure AD.
- Surface Duo SDK (Utility)
adds Dual-Screen support to apps.
- Microsoft Graph-SDK (Development Framework)
a Microsoft developer platform that connects multiple services and devices.
- Microsoft Authentication LibraryⓃ (Utility)
use the Microsoft Cloud by supporting Microsoft Azure Active Directory and Microsoft accounts in a converged experience using industry standard OAuth2 and OpenID Connect.
- Nimbus JOSE+JWT (Utility)
a Java library that implements the Javascript Object Signing and Encryption (JOSE) spec suite and the closely related JSON Web Token (JWT) spec.
- zxcvbn4j (Utility)
a JavaScript password strength generator.
- pCloud Java SDKⓃ (Utility)
SDK to work with
PCloud’s cloud storage.
- RecyclerView-FastScroll (UI Component)
library for fast scrolling through (long) lists.
- OkHttp (Utility)
OkHttp is an HTTP+HTTP/2 client for Android and Java applications.
- Disk LRU Cache (Utility)
Disk LRU cache with persisted journal.
- Wutka DTD (Development Aid)
- Yubico Mobile Android SDK (Utility)
an Android library provided by Yubico to enable YubiKey support in Android apps. Both USB and NFC-enabled YubiKeys are supported.
- HttpClient Android repackaged (Utility)
repackaged upstream version of HttpClient and depdendencies.
- Dagger (Utility)
A fast dependency injector for Android and Java.
- FindBugs (Utility)
library using static analysis to look for bugs in Java code.
- MinIO Client SDK for Java (Utility)
a Simple Storage Service (aka S3) client to perform bucket and object operations to any Amazon S3 compatible object storage service.
- RxJava (Utility)
RxJava (Reactive Extensions for the JVM) is a library for composing asynchronous and event-based programs using observable sequences for the Java VM.
- Jakarta Dependency Injection (Utility)
specifies a means for obtaining objects in such a way as to maximize reusability, testability and maintainability compared to traditional approaches such as constructors, factories, and service locators (e.g., JNDI).
- JavaX Annotation API (Utility)
common annotations for the JavaTM Platform API.
- JavaX Dependency Injection (Utility)
specifies a means for obtaining objects in such a way as to maximize reusability, testability and maintainability compared to traditional approaches such as constructors, factories, and service locators (e.g., JNDI). This process, known as dependency injection, is beneficial to most nontrivial applications.
- Javax XML (Utility)
XML processing.
- Junit (Utility)
simple framework to write repeatable tests.
- Kotlin (Utility)
The Kotlin Programming Language
- Kotlin Android Extensions Runtime (Utility)
allows to obtain the same experience as with some of these libraries, without having to add any extra code or shipping any additional runtime.
- kotlinx.coroutines (Utility)
library support for Kotlin coroutines.
- kotlin-parcelize (Utility)
Kotlin plugin that provides a Parcelable implementation generator.
- AppAuth for Android (Utility)
client SDK for communicating with OAuth 2.0 and OpenID Connect providers.
- OkHttp okio Framework (Utility)
A modern I/O API for Java to make it much easier to access, store, and process your data.
- Apache Commons (Development Framework)
an Apache project focused on all aspects of reusable Java components.
- Bouncy Castle (Utility)
a collection of APIs used in cryptography. Also see
Wikipedia.
- Checker Framework (Utility)
pluggable type-checking to detect and prevent errors in their Java programs.
- Stax2 API (Utility)
an extension API for Stax, Java pull-parsing API (STreaming Api for Xml).
- greenDAO (Utility)
a light & fast ORM solution for Android that maps objects to SQLite databases.
- Java Hamcrest (Utility)
a library of matchers, which can be combined in to create flexible expressions of intent in tests.
- IntelliJ IDEA (Utility)
- JSpecify (Development Aid)
an artifact of fully-specified annotations to power static-analysis checks, beginning with nullness analysis.
- jUnit Java Unit Test (Utility)
simple framework to write repeatable tests.
- Reactive Streams (Utility)
provide a standard for asynchronous stream processing with non-blocking back pressure.
- Simple (Utility)
high performance XML serialization and configuration framework for Java.
- Simple Logging Facade for Java (Utility)
abstraction for various logging frameworks (e.g. java.util.logging, logback, log4j) allowing to plug in the desired logging framework at deployment time.
- snappy-java (Utility)
a fast compressor/decompressor for Java.
- Reactor Core (Utility)
Non-Blocking Reactive Streams Foundation for the JVM both implementing a Reactive Extensions inspired API and efficient event streaming support.
- Timber (Utility)
logger with a small, extensible API which provides utility on top of Android's normal Log class.
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