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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Enterprise AI Agents for Every Customer MomentFrom chat to voice to SMS, every conversation gets a smart, personalized response powered by your policies, tone, and data.
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EhViewer
EhViewer overhauled with Material Design 3, Jetpack Compose and more
EhViewer fork is dedicated to lightweight and high-performance. -
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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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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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v2flyNG
A V2Ray client for Android, support v2fly core
v2flyNG is a mobile client that packages the V2Ray/V2Fly networking core into an Android application with a touch-friendly UI. It focuses on making modern protocols—such as VMess, VLESS, and Trojan—accessible without requiring shell access or manual config editing. Profiles can be added via subscription links or QR codes, and the app merges and updates them on schedule to keep node lists fresh. Per-app proxy controls allow you to include or exclude specific applications, which is useful for balancing privacy with bandwidth and latency. The client exposes routing controls, TLS settings, custom DNS, and UDP handling so advanced users can fine-tune behavior. Status panels and logs help diagnose connectivity issues and confirm that rules are being applied as intended. -
Create a personalized AI chatbot for each team in minutesQueryPal is the lifeline your team needs. Our AI chatbot integrates seamlessly with your communication channels, using advanced language understanding to identify and auto-answer repetitive questions — in seconds.
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ReVanced Patches
Patches for ReVanced
Patches are small modifications to Android apps that allow you to change the behavior of or add new features, block ads, customize the appearance, and much more. -
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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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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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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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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. -
Powerful Website Security | Continuous Web Threat PlatformReflectiz is a comprehensive web exposure management platform that helps organizations proactively identify, monitor, and mitigate security, privacy, and compliance risks across their online environments. Designed to address the growing complexity of modern websites, Reflectiz provides full visibility and control over first, third, and even fourth-party components, such as scripts, trackers, and open-source libraries that often evade traditional security tools.
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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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Circuit
A Compose-driven architecture for Kotlin and Android applications
Circuit is used in production at Slack and is ready for general use. The API is considered unstable as we continue to iterate on it. Circuit is a simple, lightweight, and extensible framework for building Kotlin applications that’s Compose from the ground up. It builds upon core principles we already know like Presenters and UDF, and adds native support in its framework for all the other requirements we set out for above. It’s heavily influenced by Cash App’s Broadway architecture (talked about at Droidcon NYC, also very derived from our conversations with them). -
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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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Orchestra
Collection of Jetpack Compose libraries to build tooltips and spinners
A collection of Jetpack Compose libraries, which are compatible with custom views for Android. Orchestra ColorPicker allows you to build color picker for getting colors from any images by tapping on the desired color for Jetpack Compose. This is a Jetpack Compose compatible package of ColorPickerView. -
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Super Bottom Sheet
Android native BottomSheet on steroids
This library allows you to display the bottom sheets in your application with the bonus of animating the color of the status bar and the upper rounded corners while scrolling. -
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kotlin-libui
Kotlin/Native interop to libui: a portable GUI library
Kotlin/Native bindings to the libui C library. libui is a C lightweight multi-platform UI library using native widgets on Linux (Gtk3), macOS, and Windows. Using this binding you can develop cross-platform but native-looking GUI programs, written in Kotlin, and compiled into small native executable files. Cross-platform build is automated using Travis for Linux and macOS targets, and AppVeyor for Windows targets. Just create a release on GitHub, and executable files for all 3 major desktop platforms will be compiled and attached to the release. -
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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. -
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Android Pluto
Android Pluto is a on-device debugging framework for Android apps
Android Pluto is an on-device debugging framework for Android applications, which helps intercept Network calls, capture Crashes & ANRs, manipulate application data on-the-go, and much more. Pluto is an on-device debugging framework for Android applications, which helps in the inspection of HTTP requests/responses, captures Crashes, and ANRs, and manipulates application data on the go. It comes with a UI to monitor and share the information, as well as APIs to access and use that information in your application. -
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BuildKonfig
BuildConfig for Kotlin Multiplatform Project
BuildConfig for Kotlin Multiplatform Project. It currently supports embedding values from gradle file. -
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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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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. -
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Immuni Android
Official repository for the Android version of the immuni application
This repository contains the source code of Immuni's Android client. -
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Kakao
Nice and simple DSL for Espresso in Kotlin
At Agoda, we have more than 1000 automated tests to ensure our application's quality and give our best experience to the user. All of them are written with Espresso from Google. Even though Espresso is working really well with our test, the code readability is quite low. Let's look at some of the examples of how we write the test. As Agoda developers, we want to improve not just our codebase quality, but also our implementation of tests as well. This is why we are introducing Kakao. The library will make you enjoy writing automated tests like you are drinking hot chocolate. Nice and simple DSL for Espresso in Kotlin. If you have custom Views in your tests and you want to create your own KView, we have KBaseView. Just extend this class and implement as many additional Action/Assertion interfaces as you want. You also need to override the constructors that you need. -
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Konfetti
Celebrate more with this lightweight confetti particle system
Configure your confetti using the Party configuration object. This holds all the information on how the confetti will be generated. Almost all properties of a Party object have a default configuration! This makes it super easy to create beautiful and natural-looking confetti. But the possibilities are endless! You can fully control how the confetti will be generated and behave by customizing the values of the Party object. -
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Ksoup
Ksoup is a lightweight Kotlin Multiplatform library for parsing HTML
Ksoup is a lightweight Kotlin Multiplatform library for parsing HTML, extracting HTML tags, attributes, and text, and encoding and decoding HTML entities. -
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krangl
krangl is a {K}otlin DSL for data w{rangl}ing
krangl is a {K}otlin library for data w{rangl}ing. Implementing a grammar of data manipulation using a modern functional-style API, allows filtering, transforming, aggregating, and reshaping tabular data. krangl is heavily inspired by the amazing dplyr for R. krangl is written in Kotlin, excels in Kotlin, but emphasizes as well on good java-interop. It is mimicking the API of dplyr, while carefully adding more typed constructs where possible.