Open Source Kotlin Libraries
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Kotlin Libraries
View 73 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. -
2
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. -
4
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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5
kotlinx-io
Kotlin multiplatform I/O library
A multiplatform Kotlin library providing basic IO primitives. kotlinx-io is based on Okio but does not preserve backward compatibility with it. Buffer works like a queue, allowing to read data from its head or to write data to its tail. Buffer provides functions to read and write data of different built-in types, and to copy data to or from other Buffers. Depending on the target platform, extension functions allowing data exchange with platform-specific types are also available. A Buffer consists of segments organized as a linked list: segments allow reducing memory allocations during the buffer's expansion and copy, with the latter achieved by delegating or sharing the ownership over the underlying buffer's segments with other buffers. -
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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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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. -
8
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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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. -
Pest Control Management SoftwareBuilt for the pest control industry, but also works great for Mosquito Control, Bin Cleaning, Window Washing, Solar Panel Cleaning, and other Home Service Businesses in need of an easy-to-use software that helps you simplify routing, scheduling, communications, payment processing, truck tracking, time tracking, and reporting.
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10
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. -
11
Emoji
A library to add Emoji support to your Android / JVM Application
A Kotlin Multiplatform library to add Emoji support to your Android App / JVM Backend. Check out the sample jvm module for text parsing/searching functionality. PopupWindow which overlays over the soft keyboard. Normal view which is used by EmojiPopup and can also be used as a standalone to select emojis via categories. The library has 4 different sprites providers to choose from (iOS, Google, Facebook & Twitter). The emoji's are packaged as pictures and loaded at runtime. If you want to use a Font provider, check out Google Compat. For convenience, there's also a EmojiLayoutFactory, which can be used to get automatic Emoji support when using normal Android Views such as TextView, Checkbox, etc. -
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Kotlin Language Server
Kotlin code completion, diagnostics and more for any editor/IDE
A language server that provides smart code completion, diagnostics, hover, document symbols, definition lookup, method signature help and more for Kotlin. -
13
Vico
A light and extensible chart library for Android
Vico is a light and extensible chart library for Android. It’s compatible with both Jetpack Compose and the view system, but its two main modules—compose and views—are independent. -
14
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. -
15
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. -
16
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. -
17
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. -
18
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. -
19
Okio
A modern I/O library for Android, Java, and Kotlin Multiplatform
Okio is a low-level I/O library created by Square for Java and Kotlin that simplifies and optimizes data access. It provides a modern alternative to Java’s InputStream and OutputStream, enabling efficient, buffered, and chainable data handling. Okio is used in many high-performance networking and serialization libraries, including OkHttp. -
20
py2many
Transpiler of Python to many other languages
Python is popular, and easy to program in, but it has poor runtime performance. We can fix that by transpiring a subset of the language into a more performant, statically typed language. A second benefit is security. Writing security-sensitive code in a low-level language like C is error-prone and could lead to privilege escalation. Specialized languages such as wuffs exist to address this use case. py2many can be a more general-purpose solution to the problem where you can verify the source via unit tests before you transpile. Swift and Kotlin dominate the mobile app development workflow. However, there is no one solution that works well for lower level libraries where there is desire to share code between platforms. Kotlin Mobile Multiplatform (KMM) is a player in this place, but it hasn't really caught on. py2many provides an alternative. -
21
AAA
Curated list of the best FOSS Android apps to maximize your freedom
This is a list of the best FOSS apps according to us. You can prove us wrong on the contributing page. -
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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. -
23
AtomicFU
The idiomatic way to use atomic operations in Kotlin
Atomicfu is a multiplatform library that provides an idiomatic and efficient way of using atomic operations in Kotlin. -
24
Beagle
Customizable debug menu library for Android apps
A smart, reliable, and highly customizable debug menu library for Android apps that supports screen recording, network activity logging, and many other useful features. -
25
Calendar
A highly customizable calendar view and compose library for Android
A highly customizable calendar library for Android, backed by RecyclerView for the view system, and LazyRow/LazyColumn for compose. With this library, your calendar will look however you want it to.
