Open Source Kotlin Software
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Kotlin Software
Browse free open source Kotlin Software and projects below. Use the toggles on the left to filter open source Kotlin Software by OS, license, language, programming language, and project status.
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MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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v2rayNG
A V2Ray client for Android, support Xray core and v2fly core
A V2Ray client for Android supports Xray core and v2fly core. geoip.dat and geosite.dat files are in Android/data/com.v2ray.ang/files/assets (path may differ on some Android devices). Download feature will get an enhanced version in this repo (Note it need a working proxy). The latest official domain list and ip list can be imported manually. It's possible to use third-party dat files in the same folder, like h2y. Android projects under V2rayNG folder can be compiled directly in Android Studio or using Gradle wrapper. But the v2ray core inside the aar is (probably) outdated. The aar can be compiled from the Golang project under AndroidLibV2rayLite folder. v2rayNG can run on Android Emulators. But VPN mode will not work if the system doesn't support it. -
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LTECleanerFOSS
The last Android cleaner you'll ever need
Android API 23+ (Marshmallow) no longer allows apps to clean other app's caches, thus the claim of cleaners clearing them is completely false. The only thing they can clean: log files, temporary files, and empty folders. LTE Cleaner is %100 free, open source, ad-free, and deletes everything it claims too. -
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Magisk
Suite of open source tools for customizing Android
Magisk is a suite of tools intended for Android customization, and supports devices higher than Android 4.2. Some elements of Android customization are root, boot scripts, SELinux patches, AVB2.0 / dm-verity / forceencrypt removals, etc. Some of the most important features of Magisk are that it provides root access to your device and it modifies read-only partitions when installing modules. Also, you can hide Magisk from root detections / system integrity checks. Magisk comes with a huge collections of tools for installation, daemons, and utilities for developers. Magisk contains MagiskSU, Magisk Modules and MagiskHide features. -
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EhViewer
EhViewer overhauled with Material Design 3, Jetpack Compose and more
EhViewer fork is dedicated to lightweight and high-performance. -
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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Kotatsu
Manga reader for Android
Kotatsu is an open-source manga reader for Android that supports local file reading and integration with sources via Tachiyomi extensions. It offers a sleek UI, smooth reading experience, and the ability to import downloaded manga from various sources. Kotatsu is designed for offline reading and emphasizes customization and privacy. -
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SimpMusic
A simple music app using YouTube Music for backend
A simple music app using YouTube Music for the backend. -
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Tachiyomi
Free and open source manga reader for Android
Tachiyomi is a free and open source manga reader for Android 6.0 and above. Online and offline reading from hundred of different sources. Automatically keep track of your manga with MyAnimeList, AniList, Kitsu, Shikimori, and Bangumi. A configurable reader with multiple reading modes, custom color filters, and other settings. A configurable reader with multiple viewers, reading directions and other settings. Tracker support, MyAnimeList, AniList, Kitsu, Shikimori, and Bangumi. Create backups locally to read offline or to your desired cloud service. -
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Liquid Bounce
A free mixin-based injection hacked client for Minecraft
LiquidBounce is a free and open-source mixin-based injection hacked client using the Fabric API for Minecraft. LiquidBounce is a hacked client (also known as a cheat) for Minecraft and designed to give you a significant advantage over other players. Unlike many of its competitors, LiquidBounce is completely free, open source and compatible with Fabric. LiquidBounce's JavaScript API allows you to take care of that yourself. With just a few lines of code, you can develop your own modules and share them with the community. LiquidBounce allows you to customize the HUD according to your personal needs. So if you don't like the standard design, you can easily customize it to your exact needs. We believe quality does not have to be come with a price tag and therefore offer LiquidBounce for free. No hidden costs, no premium features. Just go ahead and download our client. -
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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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Suwayomi-Server
A rewrite of Tachiyomi for the Desktop
A free and open source manga reader server that runs extensions built for Tachiyomi. Suwayomi is an independent Tachiyomi compatible software and is not a Fork of Tachiyomi. Suwayomi-Server is as multi-platform as you can get. Any platform that runs java and/or has a modern browser can run it. This includes Windows, Linux, macOS, chrome OS, etc. Follow Downloading and Running the app for installation instructions. -
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Shadowsocks for Android
A shadowsocks client for Android
Shadowsocks for Android is the Android client for the widely-used, high-performance encryption protocol project Shadowsocks. It is a secure socks5 proxy for Android that is designed to protect your internet traffic. Shadowsocks for Android allows you to surf the internet privately and securely at all times through your Android device. It features bleeding-edge techniques with Asynchronous I/O and Event-driven programming. It is completely free and open-source and is available for other platforms as well. -
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AB Download Manager
A Download Manager that speeds up your downloads
AB Download Manager is an Android library that provides reliable and resumable download capabilities for applications. It supports multi-threaded downloads, progress tracking, and background tasks, making it ideal for apps that require robust file transfer features. The library is built for easy integration and performance on Android devices. -
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WhatsApp clone app
WhatsApp clone project demonstrates modern Android development
This is a WhatsApp clone app built with Stream Chat SDK for Compose to implement messaging systems and Stream Video SDK for Compose using Jetpack Compose. -
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InnerTune
A Material 3 YouTube Music client for Android
A Material 3 YouTube Music client for Android. -
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FlorisBoard
An open-source keyboard for Android which respects your privacy
FlorisBoard is a free and open-source keyboard for Android 7.0+ devices. It aims to be modern, user-friendly, and customizable while fully respecting your privacy. Currently in early beta state. -
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EtchDroid
An application to write OS images to USB drives, on Android
EtchDroid is an open-source application that writes disk images to USB drives. Use it to make a bootable operating system USB drive when your laptop is dead. -
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Droid-ify
F-Droid client with Material UI
A quick material F-Droid client. -
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Auxio
A simple, rational music player for Android
Auxio is a local music player with a fast, reliable UI/UX without the many useless features present in other music players. Built off of modern media playback libraries, Auxio has superior library support and listening quality compared to other apps that use outdated android functionality. In short, It plays music. The default branch is the development version of the repository. For a stable version, see the master branch. -
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Minecraft Development for IntelliJ
Plugin for IntelliJ IDEA that gives special support for Minecraft mods
Experience first class support for all of the major Java Minecraft development platforms, including Bukkit and derivatives such as Spigot and Paper, Sponge, Forge, Fabric, MCP, Mixins, LiteLoader, BungeeCord, and Waterfall. It also provides in-depth support for Access Transformer and NBT files, and more. Because of this, you can install the plugin through IntelliJ's internal plugin browser. Navigate to File -> Settings -> Plugins and click the Browse Repositories... button at the bottom of the window. In the search box, simply search for Minecraft. You can install it from there and restart IntelliJ to activate the plugin. -
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Neko
Unofficial MangaDex Reader for Android 7+
A Free, Open source unofficial manga reader for MangaDex. -
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NekoBox for Android
NekoBox for Android / sing-box / universal proxy toolchain for Android
NekoBoxForAndroid is an Android-based proxy client supporting popular protocols like V2Ray, XRay, and Shadowsocks for secure, privacy-focused internet access. Designed as a modern alternative to applications like V2rayNG, it provides a clean interface, enhanced performance, and robust configuration management for circumventing censorship and accessing restricted content. -
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USB Gadget Tool
Convert your Android phone to any USB device you like
Convert your Android phone to any USB device you like. USB Gadget Tool allows you to create and activate USB device roles, like a mouse or a keyboard. Connected USB hosts (e.g. a normal computer) will then identify your Android device only under that role. It can also be used to deactivate the standard USB Gadget (including mtp, adb, etc.), e.g. for security reasons. -
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APKUpdater
Simplify the process of finding updates for your installed apps
APKUpdater is an open source tool that simplifies the process of finding updates for your installed apps. It provides similar functionality to an app store, but instead of depending on a single source, it aggregates the results from APKMirror, Aptoide, F-Droid and Google Play. Schedule background update checks and receive a notification when updates are found. Supports Android 4.0.3 to Android 10. Supports Android TV. Material Design 2 with multiple theme support. Direct install of updates for sources that support it. Root install of updates. Languages: English, Spanish, Chinese, Turkish, Arabic, French, Indonesian, Italian, Brazilian Portuguese. App ignore list. Filter updates by architecture. Filter experimental apps. Filter apps by API level. Exclude apps installed by an App Store. -
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Spowlo
A Spotify songs downloader for Android made with Jetpack Compose
A Spotify songs downloader powered by spotDL made with Jetpack Compose and Material You. -
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Seal
Video/Audio Downloader for Android, based on yt-dlp
Video/Audio Downloader for Android. Download videos and audio files from video platforms supported by yt-dlp (formerly youtube-dl). UI and logic written with pure Kotlin. Single activity, no fragments, only composable destinations.