- Mozilla Rhino (Utility)
requires 1 permissions: android.permission.INTERNET 
open-source implementation of JavaScript written entirely in Java.
- 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.
- 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.
- 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.
- 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.
- 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.
- AndroidX Media (Utility)
share media contents and controls with other apps.
- 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.
- Room (Utility)
a persistence library that provides an abstraction layer over SQLite to allow for more robust database access while harnessing the full power of SQLite.
- 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.
- Sqlite (Utility)
library that contains abstract interfaces along with basic implementations which can be used to build your own libraries that access SQLite.
- 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.
- 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.
- Webkit (Utility)
a static library to use android.webkit APIs that are not available for older platform versions.
- WorkManager (Utility)
an API that makes it easy to schedule deferrable, asynchronous tasks that must be run reliably .
- FFmpegKit (Utility)
FFmpeg Kit for applications. Supports Android, Flutter, iOS, macOS, React Native and tvOS.
- SmartException (Development Aid)
utilities to handle throwable objects and format stack trace elements in JVM based languages (Java, Scala, Kotlin, Groovy, etc.)
- ExoPlayer (Utility)
an extensible media player library for Android
- Google Material Design (Utility)
library to help with material design guidelines.
- Auto (Utility)
a collection of source code generators for Java.
- 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.
- nanojson (Utility)
a tiny, fast, and compliant JSON parser and writer for Java.
- Process Phoenix (Utility)
facilitates restarting your application process (like a Phoenix from the ashes).
- RxBinding (Utility)
RxJava binding APIs for Android's UI widgets.
- NoNonsense-FilePicker (UI Component)
a file/directory-picker for android.
- Curtains (Development Aid)
provides centralized APIs for dealing with Android windows.
- LeakCanary (Utility)
A memory leak detection library for Android and Java.
- OkHttp (Utility)
OkHttp is an HTTP+HTTP/2 client for Android and Java applications.
- Picasso (Utility)
image downloading and caching library.
- Wire Protocol Buffers (Utility)
library that deals with Protocol Buffers (a.k.a., protobuf) – Google's language-neutral, platform-neutral, extensible mechanism for serializing structured data.
- groupie (UI Component)
a simple, flexible library for complex RecyclerView layouts.
- Icepick (Development Aid)
a library that eliminates the boilerplate of saving and restoring instance state.
- Markwon (Utility)
Markdown library.
- 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.
- Kotlin (Utility)
The Kotlin Programming Language
- kotlinx.coroutines (Utility)
library support for Kotlin coroutines.
- OkHttp okio Framework (Utility)
A modern I/O API for Java to make it much easier to access, store, and process your data.
- ACRAⓉ (Utility)
Application Crash Reports for Android. By default, sends Crash reports silently without informint the user, but can be configured to ask first.
- Apache Commons (Development Framework)
an Apache project focused on all aspects of reusable Java components.
- brotli (Utility)
a generic-purpose lossless compression algorithm that compresses data using a combination of a modern variant of the LZ77 algorithm, Huffman coding and 2nd order context modeling, with a compression ratio comparable to the best currently available general-purpose compression methods.
- Webkit Boundary Interfaces (Utility)
Chromium WebView helpers
- commonmark-java (Utility)
Java implementation of CommonMark, a specification of the
Markdown format.
- Java WebSockets (Utility)
a barebones WebSocket client and server implementation written in 100% Java.
- JSON in Java (Utility)
a reference implementation of a JSON package in Java.
- jsoup (Utility)
a Java library for working with real-world HTML. It provides an API for extracting and manipulating data, using the best of DOM, CSS, and jquery-like methods.
- prettytime (Utility)
social style date and time formatting for Java.
- Reactive Streams (Utility)
provide a standard for asynchronous stream processing with non-blocking back pressure.
- NewPipe Extractor (Utility)
- 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.
- GigaGet (Utility)
a multi-thread & lightweight downloader.
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