Open Source Kotlin Libraries
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Kotlin Libraries
View 72 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
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. -
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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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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. -
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Fakeit
The Kotlin fake data generator library!
This library is a port of the Ruby Gem Faker. It generates realistic fake data — like names, emails, dates, and countries, for a variety of scenarios, including automated testing and database population. The library was originally created for Android projects, but it can be used in any Java or Kotlin project. -
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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. -
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LibChecker
An app to view libraries used in apps in your device
This app is used to view the third-party libraries used by applications in your device. It can view the ABI architecture of the application's native library (in general, whether the application is 64-bit or 32-bit). It can also view well-known libraries marked by The Rule Repository, and can even sort and view them according to the number of libraries references. -
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Image Picker Library for Android
Image Picker for Android, Pick an image from Gallery
Easy to use and configurable library to Pick an image from the Gallery or Capture an image using a Camera. It also allows to Crop and Compress the Image based on Aspect Ratio, Resolution, and Image Size. Almost 90% of the apps that I have developed have an Image upload feature. Along with the image selection, Sometimes I needed a crop feature for my profile image for that I've used uCrop. Most of the time I need to compress the image as the image captured from the camera is more than 5-10 MBs and sometimes we have a requirement to upload images with specific resolution/size, in that case, image compression is the way to go option. To simplify the image pick/capture option I have created the ImagePicker library. I hope it will be useful to all. -
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Anko
An Android application development library
Anko is a Kotlin library which makes Android application development faster and easier. It makes your code clean and easy to read, and lets you forget about rough edges of the Android SDK for Java. Anko was born as a type-safe DSL for building Android layouts. It not only allowed creating layouts in a type-safe way, but it made the layouts more adaptable, dynamic, reusable, and also performant, as there was no need for expensive layout inflation. Anko consists of several parts that make up the complete framework, which are: Anko Commons: a lightweight library full of helpers for intents, dialogs, logging and so on. Anko Layouts: a fast and type-safe way to write dynamic Android layouts. Anko SQLite: a query DSL and parser collection for Android SQLite. Anko Coroutines: utilities based on the kotlinx.coroutines library. -
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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. -
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CPU Info
CPU Info provides information about device hardware and software
CPU Info provides the main information about the hardware and software of your device. -
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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. -
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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. -
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Kotlin Wrappers
Kotlin wrappers for popular JavaScript libraries
This repository hosts a number of Kotlin wrappers for popular JavaScript libraries. To learn more please refer to the READMEs of individual modules. Artifacts are published to Maven Central, see the corresponding README files for package coordinates. All packages require JDK 8 to be installed. -
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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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Pinview
A pinview library for Android
Pinview library for Android. -
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kaml
YAML support for kotlinx.serialization
This library adds YAML support to Kotlinx serialization. Currently, only Kotlin/JVM is fully supported. Kotlin/JS support is considered highly experimental. It is not yet fully functional and may be removed or modified at any time. -
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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. -
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Arrow
Functional companion to Kotlin's Standard Library
Arrow Core includes types such as Either, Validated and many extensions to Iterable that can be used when implementing error handling patterns. Core also includes the base continuation effects system, which includes patterns to remove callbacks and enables controlled effects in direct syntax. Some applications of the effect system reduce boilerplate and enable direct syntax including monad comprehensions and computation expressions. Arrow Fx is a next-generation Typed FP Effects Library that makes tracked effectful programming first class in Kotlin built on top of Kotlin’s suspend system and KotlinX Coroutines Arrow Fx is a functional companion to KotlinX Coroutines augmenting its api with well known functional operators making it easier to compose async and concurrent programs. The library brings purity, referential transparency, and direct imperative syntax to typed FP in Kotlin, and is a fun and easy tool for creating Typed Pure Functional Programs. -
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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. -
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Gradle Advanced Build Version Plugin
A plugin to generate the Android version code and version name
A plugin to generate the Android version code and version name automatically based on git commits number, date and Semantic Versioning. -
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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. -
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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. -
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MockK
Mocking library for Kotlin
All you need to get started is just to add a dependency to MockK library. Simplest example. By default mocks are strict, so you need to provide some behavior. -
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PhotoEditor
A Photo Editor library with simple, easy support for image editing
A Photo Editor library with simple, easy support for image editing using Paints, Text, Filters, Emoji and Sticker like stories. Drawing on the image with the option to change its Brush's Color, Size, Opacity, Erasing and basic shapes. Apply Filter Effect on the image using MediaEffect. Adding/Editing Text with the option to change its Color with Custom Fonts. Adding Emoji with Custom Emoji Fonts. Adding Images/Stickers. Pinch to Scale and Rotate views. Undo and Redo for Brush and Views. Deleting Views. Saving Photo after editing. More FAQ. PhotoEditor v.1.0.0 is a migration to androidX and dropping the support of the older support library. There are no API changes. If you find any issues migrating to v.1.0.0, please follow this Guide. If you still facing the issue then you can always rollback to v.0.4.0. -
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kotlinx.coroutines
Library support for Kotlin coroutines
Library support for Kotlin coroutines with multiplatform support. Kotlin, as a language, provides only minimal low-level APIs in its standard library to enable various other libraries to utilize coroutines. Unlike many other languages with similar capabilities, async and await are not keywords in Kotlin and are not even part of its standard library. Moreover, Kotlin's concept of suspending function provides a safer and less error-prone abstraction for asynchronous operations than futures and promises. kotlinx.coroutines is a rich library for coroutines developed by JetBrains. It contains a number of high-level coroutine-enabled primitives that this guide covers, including launch, async and others. Coroutines can be thought of as light-weight threads, but there is a number of important differences that make their real-life usage very different from threads.
