Browse free open source Kotlin Frameworks and projects below. Use the toggles on the left to filter open source Kotlin Frameworks by OS, license, language, programming language, and project status.

  • Gen AI apps are built with MongoDB Atlas Icon
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  • 1
    EhViewer

    EhViewer

    EhViewer overhauled with Material Design 3, Jetpack Compose and more

    EhViewer fork is dedicated to lightweight and high-performance.
    Downloads: 295 This Week
    Last Update:
    See Project
  • 2
    APKUpdater

    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.
    Downloads: 46 This Week
    Last Update:
    See Project
  • 3
    Hexagon

    Hexagon

    Hexagon is a microservices toolkit written in Kotlin

    Hexagon is a microservices toolkit written in Kotlin. Its purpose is to ease the building of server applications (Web applications or APIs) that run inside a cloud platform. The Hexagon Toolkit provides several libraries to build server applications. These libraries provide single standalone features and are referred to as "Ports".
    Downloads: 5 This Week
    Last Update:
    See Project
  • 4
    Anko

    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.
    Downloads: 4 This Week
    Last Update:
    See Project
  • Simply solve complex auth. Easy for devs to set up. Easy for non-devs to use. Icon
    Simply solve complex auth. Easy for devs to set up. Easy for non-devs to use.

    Transform user access with Frontegg CIAM: login box, SSO, MFA, multi-tenancy, and 99.99% uptime.

    Custom auth drains 25% of dev time and risks 62% more breaches, stalling enterprise deals. Frontegg platform delivers a simple login box, seamless authentication (SSO, MFA, passwordless), robust multi-tenancy, and a customizable Admin Portal. Integrate fast with the React SDK, meet compliance needs, and focus on innovation.
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  • 5
    Ktor

    Ktor

    Framework for quickly creating connected applications in Kotlin

    Create asynchronous client and server applications. Anything from microservices to multiplatform HTTP client apps in a simple way. Open Source, free, and fun. Ktor is built from the ground up using Kotlin and Coroutines. You get to use a concise, multiplatform language, as well as the power of asynchronous programming with an intuitive imperative flow. Ktor allows you to use only what you need, and to structure your application the way you need it. In addition, you can also extend Ktor with your own plugin very easily. Brought to you by JetBrains, creators of IntelliJ IDEA, Kotlin, and more. Ktor is not only used by our customers, but also internally at JetBrains. In addition, you have top-notch tooling support.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 6
    Compose Kotlin UI

    Compose Kotlin UI

    A modern UI framework for Kotlin that makes building performant

    Fast reactive desktop UIs for Kotlin, based on Google's modern toolkit and brought to you by JetBrains. Compose for Desktop simplifies and accelerates UI development for desktop applications, and allows extensive UI code sharing between Android and desktop applications. Currently in alpha. Compose for Desktop provides a declarative and reactive approach to creating user interfaces with Kotlin. Combine composable functions to build your user interface, and enjoy full tooling support from your IDE and build system, no XML or templating language required. Compose for Desktop targets the JVM, and supports high-performance, hardware-accelerated UI rendering on all major desktop platforms (macOS, Windows, and Linux/x64) by leveraging the powerful native Skia graphics library. Desktop extensions for menus, keyboard shortcuts, window manipulation, notification management, and more.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 7
    Compose Multiplatform

    Compose Multiplatform

    Compose Multiplatform, a modern UI framework for Kotlin

    Develop stunning shared UIs for Android, iOS, desktop, and web. Declarative framework for sharing UIs across multiple platforms. Based on Kotlin and Jetpack Compose. Build your user interface once, and use it on all platforms, Android, iOS, web, and desktop. Save yourself the effort of keeping different UIs in sync, and get your app into the hands of your users more quickly. Use the same familiar APIs from Jetpack Compose to build user interfaces for all platforms. Use a wide variety of production-ready Kotlin libraries and frameworks that make it easy to be productive from the get-go and get support from a helpful and welcoming developer community. Building on top of Kotlin Multiplatform means not having to compromise on using platform-specific features and APIs. Easily access the full capabilities of every platform, just like native applications.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 8
    Kweb

    Kweb

    A Kotlin web framework

    Kweb is designed to make it easy for developers to create modern websites without having to worry about the complexities of communication between the server and the browser. With a unified codebase, you can focus on creating an intuitive and user-friendly interface, rather than spending time on technical details. By streamlining the development process, Kweb makes it easier to build functional and beautiful websites that meet the needs of your users. Kweb is a remote interface for a web browser's DOM (Document Object Model). With Kweb, you can create and manipulate DOM elements, and listen for and handle events, all using an intuitive Kotlin DSL that mirrors the structure of the HTML being created. Kweb is built on the Ktor framework, which handles HTTP, HTTPS, and WebSocket transport, and is optimized to minimize latency and resource usage on both the server and browser.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 9
    Simple Robot

    Simple Robot

    A Bot-style event scheduling framework, asynchronous

    Simple Robot (v4) is based onKotlin Co-process ofKotlin multiplatform Bot styleHigh-performance asynchronous event scheduling framework (hereinafter referred to as simbot), Asynchronous and efficient, Java friendly. simbot provides a unified asynchronous API and easy-to-use style design that can assist you in writing more quickly and efficiently but style event scheduling application. It is mainly used to connect various types of Bot application platforms/frameworks and provide part of the component library to achieve.
    Downloads: 2 This Week
    Last Update:
    See Project
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  • 10
    Yuki Hook API

    Yuki Hook API

    An efficient Hook API and Xposed Module solution built in Kotlin

    An efficient Hook API and Xposed Module solution built in Kotlin. The automatic builder can help you quickly create an Xposed Module, automatic configure the entry class and xposed_init files. A powerful, elegant, beautiful API built with Kotlin lambda can help you quickly implement method Hook and more convenient functions. A rich debug log function, detailing the name of each hooked method, time-consuming to find the class can quickly debug and find errors. Natively supports multiple Xposed API usages and natively connects to multiple Xposed APIs, Hook Frameworks within the supported range can be quickly integrated. The built Xposed Module simply supports R8, obfuscate will not destroy the hook entry point, and no other configuration is required under R8. Simple and easy to use it now! Do not need complex configuration and full development experience, Integrate dependencies and enjoy yourself.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 11
    Circuit

    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).
    Downloads: 1 This Week
    Last Update:
    See Project
  • 12
    DivKit

    DivKit

    DivKit is an open source Server-Driven UI (SDUI) framework

    DivKit is an open source Server-Driven UI (SDUI) framework. It allows you to roll out server-sourced updates to different app versions. Also, it can be used for fast UI prototyping, allowing you to write a layout once and then ship it to iOS, Android, and Web platforms. DivKit is an excellent choice to start using server-driven UI in your project because it can be easily integrated as a simple view in any part of your app. At the starting point, you don’t need a server integration. You can include all JSON on the client-side to try it in a real-world application. Also, we’ve made a sandbox for you to experiment with. You can try different samples in the web editor and see the results on the web or in the Android demo app, both of which are available on Google Play. We’ll publish the iOS demo app shortly. The UI in the demo can be updated live: the sandbox connects to the demo app via web sockets.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 13
    Exposed

    Exposed

    Kotlin SQL framework

    Welcome to Exposed, an ORM framework for Kotlin. Exposed offers two levels of database access: typesafe SQL wrapping DSL and lightweight data access objects. Our official mascot is Cuttlefish, which is best known for its outstanding mimicry abilities letting it blend seamlessly in any environment. Just like our mascot, Exposed can mimic a variety of database engines and help you build database applications without hard dependencies on any specific database engine, and switch between them with very little or no changes in your code. Exposed is currently available for maven/gradle builds at Maven Central.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 14
    LINE Messaging API SDK for Java

    LINE Messaging API SDK for Java

    LINE Messaging API SDK for Java

    The LINE Messaging API SDK for Java makes it easy to develop bots using LINE Messaging API, and you can create a sample bot within minutes.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 15
    Sceneform Maintained SDK for Android

    Sceneform Maintained SDK for Android

    Sceneform Maintained is an ARCore Android SDK with Google Filament

    Sceneform Maintained is an ARCore Android SDK with Google Filament as 3D engine. This is the continuation of the Archived Sceneform. Android Augmented Reality library: AR Model Viewer, Augmented Images, Augmented Faces, Video, Depth, Cloud Anchors, Instant Placement, Light Estimation and much more in Kotlin and Java.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    Solidity plugin for IntelliJ

    Solidity plugin for IntelliJ

    Solidity plugin for IntelliJ

    Solidity plugin for IntelliJ. You can support the development by sponsoring the plugin on Github. Supporting the plugin with crypto through the Gitcoin grant. Please attach the screenshot for every issue if possible. It will make the issue much clearer and easier to understand.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 17
    Spek

    Spek

    A specification framework for Kotlin

    Spek 2.x is a complete rewrite of Spek with Kotlin multiplatform support in mind. The DSL is also reworked into two distinct styles: specification and gherkin. A dedicated migration section and a list of breaking changes are provided.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    Spring Reactive Sample

    Spring Reactive Sample

    Spring 5 Reactive playground

    This is a sandbox project for demonstrating Reactive Streams support in the Spring framework and Spring ecosystem. I've also maintained a series of repos related to ReativeStreams and the latest Spring 5.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 19
    deep-clean

    deep-clean

    When Gradle or the IDE let you down, just --nuke all them caches

    A Kotlin script that nukes all build caches from Gradle/Android projects. Useful when Gradle or the IDE let you down. The script has been tested on macOS, but it is completely untested on Linux and Windows. KScript may not work at all on Windows! For this script to work, you need to have kotlin, script, and maven on your PATH. If you don't have all three commands on your PATH, then read on to the next section to install them. To make the script run, we'll first need to install all the required dependencies. All dependencies are available on SDKMan! (Windows, Linux, macOS). Note that KScript support for Windows is not officially available yet.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    jimmer

    jimmer

    A revolutionary ORM framework for both java and kotlin.

    A revolutionary ORM framework for both Java and kotlin and a complete integrated solution. You can view everything from the documentation. Brings dynamism into static language ORM frameworks, achieving flexible capabilities for operating on complex dynamic data structures without compromising the complete compile-time safety checks of static languages, eliminating DTO explosion and unafraid of engineering expansion and changing requirements. Its innovative SQL DSL supports dynamic table joins and native SQL embedding, gracefully handling real-world complexity. Focuses on business and reaping caching gains. CDC solutions decoupled from specific caching technologies are transparent to business code. Requires no special prior knowledge - veterans of any ORM can quickly and painlessly migrate. The learning curve is scientifically friendly, serving as a high-quality reference for new learners of ORM usage.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 21
    Codename One

    Codename One

    Cross-platform app development framework for Java & Kotlin developers.

    Build native mobile applications using Java or Kotlin with our open source tools. Codename One seamlessly integrates with IntelliJ/IDEA, Eclipse & NetBeans to make native write once run anywhere a reality on iOS (iPhone/iPad), Android, Windows (UWP), Desktops and more.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 22
    .ignore 4.x

    .ignore 4.x

    .ignore support plugin for IntelliJ IDEA

    .ignore support plugin for IntelliJ IDEA . Entries inspection (duplicated, covered, unused, incorrect syntax, relative entries) with quick-fix actions. Comments and brackets support. Navigation to entries in Project view. Renaming entries from a dot-ignore file. Close opened ignored files action. Custom user templates with import/export features.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    Android Pluto

    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.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    BRVAH

    BRVAH

    Powerful and flexible RecyclerView Adapter

    BRVAH or Base RecyclerView Adapter Helper is a helpful tool for using RecyclerView more easily and efficiently. If you're an Android developer, you're probably familiar with RecyclerView as it is one of the most frequently-used controls in Android. While it may be quite useful however, a lot of developers can find it vexing to use. This is where BRVAH comes in. With BRVAH, it becomes easier than ever to use RecyclerView. Its efficient use meets the common needs of Android developers in projects. BRVAH optimizes adapter code, allows for adapter animation, adds On Item Click Lister, and more.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Decompose Kotlin

    Decompose Kotlin

    Kotlin Multiplatform lifecycle-aware business logic components

    Decompose is a Kotlin Multiplatform library for breaking down your code into lifecycle-aware business logic components (aka BLoC), with routing functionality and pluggable UI (Compose, Android Views, SwiftUI, Kotlin/React, etc.).
    Downloads: 0 This Week
    Last Update:
    See Project
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