Open Source Kotlin Libraries
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Kotlin Libraries
View 77 business solutionsBrowse free open source Kotlin Libraries and projects below. Use the toggles on the left to filter open source Kotlin Libraries by OS, license, language, programming language, and project status.
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1
Hacker Scripts
Based on a true story
Hacker Scripts is a cheeky collection of small automation scripts and language ports collected under the tagline “Based on a true story.” The repository gathers playful utilities (originally shell and Ruby scripts) that automate short, real-world tasks — for example, sending a quick “late at work” text when SSH sessions are active, firing off an automated “I’m sick / working from home” email on certain mornings, or even talking to a networked coffee machine to start brewing at precisely the right moment. The README explains the origin story and highlights several canonical scripts and provides usage notes such as required environment variables and cron examples for scheduling. Contributors have provided implementations and ports in many languages and folders (shell, Ruby, Python, Node, Perl, PowerShell, Go, Java, etc.), and the project explicitly welcomes pull requests that add additional language implementations. -
2
Rekado
Payload launcher and serial number checker for Nintendo Switch
Payload launcher is written in Kotlin for Nintendo Switch. The application doesn't require Root on your device. -
3
YunX
An Android network disk analysis and download app
YunX is an Android app for parsing shared cloud-drive links, browsing their contents, and downloading files directly. It recognizes links from services including Quark, UC, Xunlei, Baidu Netdisk, 139 Cloud, and 123 Cloud, and can automatically match extraction codes. Downloads use concurrent ranged chunks with resume support, persistent request headers, and a fixed chunk plan. The app can clean up temporary transferred files after obtaining direct links or after download tasks are removed. Authentication methods vary by provider and include WebView cookies, password or SMS login, and JWT-based sessions. Credentials and download tasks are stored locally, with exported authentication backups protected through password-derived AES-GCM encryption. -
4
Mtk Easy Su
Get bootless root access with few clicks.
This app set up bootless super user access, with Magisk and Mtk-su, on MediaTek Android devices. To facilitate those wishing to use the security breach Mtk-su by Diplomatic. If you are a more advanced user. I recommend using the mtk-su tool from the terminal, you will have more possibilities and control over the process. -
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5
Gramophone
A sane music player built with media3 and material design library
A sane media3-based Material3 music player that follows Android standards. Gramophone is a sane music player built with media3 and a material design library that follows android's standards strictly. -
6
Lets-Plot Kotlin API
Kotlin API for Lets-Plot Multiplatform plotting library
Lets-Plot Kotlin API is a Kotlin API for Lets-Plot Multiplatform plotting library, which is built on the principles of layered graphics first described in the Leland Wilkinson work The Grammar of Graphics. -
7
Linux Command Library (Mobile+CLI+Web)
1M downloads Linux reference app with basics, tips and formatted pages
The app currently has 5547 manual pages, 22+ basic categories and a bunch of general terminal tips. It works 100% offline, doesn't need an internet connection and has no tracking software. -
8
Sensey
Play with sensor events & detect gestures in a breeze
Sensey is an Android library that simplifies sensor events and gesture recognition. It removes much of the registration, listener, lifecycle, and cleanup boilerplate normally required by Android sensor APIs. Developers enable independent plugins through a concise Kotlin DSL and receive strongly defined gesture events through callbacks. Coroutines and Flow support provide lifecycle-aware streams that pause, resume, and clean themselves up automatically. Jetpack Compose applications can collect the same events through a dedicated effect API. The library recognizes gestures involving shaking, flipping, movement, proximity, orientation, tapping, swiping, sound, steps, rotation, and other device interactions. Its documentation and sample application demonstrate configuration, parameters, and multiple simultaneous gesture plugins. -
9
Myne
An android app to download ebooks from Project Gutenberg
Myne is a FOSS Android application to download ebooks from Project Gutenberg, it uses GutenDex API to fetch metadata of ebooks in the backend. -
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10
Gitnuro
A FOSS Git multiplatform client for newbies and pros
A FOSS Git client based on (Jetbrains) Compose and JGit. The main goal of Gitnuro is to provide a multiplatform open-source Git client without any kind of constraint to how you can use it or rely on web technologies. -
11
MRepo
A Modules Manager for Magisk & KernelSU
MRepo (short for My Repository or Modules Repository) is an Android app that helps manage your own modules repository. -
12
Amazon Chime SDK for Android
An Android client library for integrating multi-party communications
The Amazon Chime SDK for Android makes it easy to add collaborative audio calling, video calling, and screen share viewing features to Android applications by using the same infrastructure services that power meetings on the Amazon Chime service. This Amazon Chime SDK for Android works by connecting to meeting session resources that you have created in your AWS account. The SDK has everything you need to build custom calling and collaboration experiences in your Android application, including methods to: configure meeting sessions, list and select audio devices, switch video devices, start and stop screen share viewing, and receive callbacks when media events occur such as volume changes, and manage meeting features such as audio mute and video tile bindings. We also have an Amazon Chime SDK Project Board where you can find community requests and their statuses. -
13
Android Developer Roadmap
The Android Developer Roadmap offers comprehensive learning paths
Android Developer Roadmap suggests learning paths to understanding Android development. The Android Developer Roadmap is designed to give you a comprehensive understanding of the current Android ecosystem and provides suggested learning paths along the way to help you grasp the concepts. Each node indicates concepts of Android systems, Android SDK, and generally used libraries. It would be helpful to refer to the Android Developers Reference or GitHub for the specific terminologies. In addition, you don't need to learn everything from this roadmap. So we recommend only reading the sections that would be helpful to you. -
14
Accompanist
A collection of extension libraries for Jetpack Compose
Accompanist is a collection of extension libraries for Jetpack Compose, developed by Google. It provides utilities and components that are not yet available in the core Compose library, helping developers build modern, responsive UIs with ease. Accompanist includes support for navigation, system UI control, insets, permissions, animations, and image loading, among other features. -
15
GraphQL Java Tools
A schema-first tool for graphql-java inspired by graphql-tools for JS
This library allows you to use the GraphQL schema language to build your graphql-java schema. Inspired by graphql-tools, it parses the given GraphQL schema and allows you to BYOO (bring your own object) to fill in the implementations. GraphQL Java Tools works extremely well if you already have domain POJOs that hold your data (e.g. for RPC, ORM, REST, etc) by allowing you to map these magically to GraphQL objects. GraphQL Java Tools aims for seamless integration with Java, but works for any JVM language. Try it with Kotlin. -
16
KMP NativeCoroutines
Library to use Kotlin Coroutines from Swift code in KMP apps
A library to use Kotlin Coroutines from Swift code in KMP apps. Both KMP and Kotlin Coroutines are amazing, but together they have some limitations. The most important limitation is cancellation support. Kotlin suspend functions are exposed to Swift as functions with a completion handler. This allows you to easily use them from your Swift code, but it doesn't support cancellation. Besides cancellation support, ObjC doesn't support generics on protocols. The library consists of a Kotlin and Swift part which you'll need to add to your project. -
17
Multiplatform Settings
A Kotlin Multiplatform library for saving simple key-value data
This is a Kotlin library for Multiplatform apps so that common code can persist key-value data. -
18
Scrimage
JVM - Java, Kotlin, Scala image processing library
Scrimage is an immutable, functional, and performant JVM library for the manipulation of images. The aim of this library is to provide a simple and concise way to do common image operations, such as resizing to fit a required width and height, converting between formats, applying filters, and so on. It is easy to use from any language on the JVM. A typical use case for this library would be creating thumbnails of images uploaded by users in a web app, bounding a set of product images so that they all have the same dimensions, optimizing PNG uploads by users to apply maximum compression, or applying a grayscale filter in a print application. -
19
The-Force
Built with MVVM pattern, Koin , Coroutines + Flows
An Android app consuming a Star Wars API to display Movie Characters it has been built with clean architecture principles, Repository Pattern and MVVM pattern as well as Architecture Components. -
20
kscript
Scripting enhancements for Kotlin
Enhanced scripting support for Kotlin on *nix-based and Windows systems. Kotlin has some built-in support for scripting already, but it is not yet feature-rich enough to be a viable alternative in the shell. -
21
Compose Rich Editor
A Rich text editor library for both Jetpack Compose
A rich text editor library for both Jetpack Compose and Compose Multiplatform, fully customizable and supports the common rich text editor features. -
22
FastAdapter
The bullet proof, fast and easy to use adapter library
The FastAdapter is here to simplify creating adapters for RecyclerViews. Don't worry about the adapter anymore. Just write the logic for how your view/item should look like, and you are done. It's blazing fast, minimizing the code you need to write, and is easy to extend. -
23
Kotlin Coroutines for Retrofit
Kotlin Coroutines await() extension for Retrofit Call
This is a small library that provides the Kotlin Coroutines suspending extension Call.await() for Retrofit 2. Based on kotlinx.coroutines implementation. Kotlin 1.2 and experimental coroutines are not supported anymore, but you can use version 0.13.0 for old projects. -
24
Kotlin Dataframe
Structured data processing in Kotlin
Data frame is an abstraction for working with structured data. Essentially it’s a 2-dimensional table with labeled columns of potentially different types. You can think of it like a spreadsheet or SQL table, or a dictionary of series objects. The handiness of this abstraction is not in the table itself but in a set of operations defined on it. The Kotlin Dataframe library is an idiomatic Kotlin DSL defining such operations. The process of working with data frame is often called data wrangling which is the process of transforming and mapping data from one "raw" data form into another format that is more appropriate for analytics and visualization. The goal of data wrangling is to assure quality and useful data. -
25
LeakCanary
A memory leak detection library for Android
LeakCanary is a reliable memory leak detection library for Android. It effectively detects leaks and narrows down the cause of each leak through its in-depth knowledge of the internals of the Android Framework. This helps developers avoid and dramatically reduce OutOfMemoryError (OOM) crashes. A memory leak is a programming error that can cause an OutOfMemoryError crash. It’s often caused by bugs related to the lifecycle of objects, and can occur fairly often in Android applications. LeakCanary helps to find and fix those leaks during development so you never have to experience another OOM crash.
