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.

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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: 468 This Week
    Last Update:
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  • 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: 47 This Week
    Last Update:
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  • 3
    Kobweb

    Kobweb

    A modern framework for full stack web apps in Kotlin

    Kobweb is an opinionated Kotlin framework for creating websites and web apps, built on top of Compose HTML and inspired by Next.js and Chakra UI. While Kobweb is still pre-1.0, it has been usable for a while now. It provides escape hatches to lower-level APIs, so you can accomplish anything even if Kobweb doesn't support it yet. Please consider starring the project to indicate interest, so we know we're creating something the community wants.
    Downloads: 9 This Week
    Last Update:
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  • 4
    Workflow

    Workflow

    A Swift and Kotlin library for making composable state machines

    Workflow is an application framework that provides architectural primitives. A corresponding testing framework that facilitates simple-to-write unit tests for all application business logic and helps ensure correctness. Corresponding UI frameworks that bind Rendering data classes for “views” (including event callbacks) to Mobile UI frameworks for Android and iOS. Optimized for composability and scalability of features and screens. A library that supports writing business logic and complex UI navigation logic as state machines, thereby enabling confident reasoning about the state and validation of correctness. A unidirectional data flow library that uses immutable data within each Workflow. Data flows in a single direction from the source to the UI, and events in a single direction from the UI to the business logic. Each logical component area is separated into a Workflow with a finite set of states and the logic to transition between them.
    Downloads: 8 This Week
    Last Update:
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  • 5
    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: 7 This Week
    Last Update:
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  • 6
    Mavericks

    Mavericks

    Mavericks, Android on Autopilot

    Mavericks is an Android MVI framework that is both easy to learn yet powerful enough for the most complex flows at Airbnb, Tonal, and other large apps. When we began creating Mavericks, our goal was to make building products easier, faster, and more fun. We believe that for Mavericks to be successful, it must be easy to learn for people new to Android development working their first apps yet powerful enough to support the most complex screens at Airbnb. Mavericks is used in hundreds of screens at Airbnb including 100% of new screens. It has also been adopted by countless other apps from small sample apps to apps with over 1 billion downloads. Mavericks is built on top of Android Jetpack and Kotlin Coroutines so it can be thought of as a complement rather than a departure from Google's standard set of libraries. We believe that for Mavericks to be successful, it must be effective for building everything from the simplest of screens to the most complex in our app.
    Downloads: 7 This Week
    Last Update:
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  • 7
    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: 7 This Week
    Last Update:
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  • 8
    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: 6 This Week
    Last Update:
    See Project
  • 9
    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: 6 This Week
    Last Update:
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  • 10
    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: 6 This Week
    Last Update:
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  • 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: 5 This Week
    Last Update:
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  • 12
    Ktorm

    Ktorm

    A lightweight ORM framework for Kotlin with strong-typed SQL DSL

    Ktorm is a lightweight and efficient ORM Framework for Kotlin directly based on pure JDBC. It provides strong-typed and flexible SQL DSL and convenient sequence APIs to reduce our duplicated effort on database operations. All the SQL statements, of course, are generated automatically. Ktorm is open source and available under the Apache 2.0 license. Please leave a star if you've found this library helpful.
    Downloads: 4 This Week
    Last Update:
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  • 13
    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: 4 This Week
    Last Update:
    See Project
  • 14
    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: 3 This Week
    Last Update:
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  • 15
    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: 3 This Week
    Last Update:
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  • 16
    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: 3 This Week
    Last Update:
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  • 17
    Kakao

    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.
    Downloads: 3 This Week
    Last Update:
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  • 18
    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: 3 This Week
    Last Update:
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  • 19
    gradle-maven-publish-plugin

    gradle-maven-publish-plugin

    A Gradle plugin that publishes your Android and Kotlin libraries

    A Gradle plugin that publishes your Android and Kotlin libraries, including sources and javadoc, to Maven Central or any other Nexus instance. Gradle plugin that creates a publish task to automatically upload all of your Java, Kotlin or Android libraries to any Maven instance. This plugin is based on Chris Banes initial implementation and has been enhanced to add Kotlin support and keep up with the latest changes. No need to know how publishing works for different project types. AGP provides an API to configure publishing, java-library too, Kotlin Multiplatform does most things automatically but not everything. This plugin configures as much as possible on its own. An unified approach for all kinds of projects. Some parts require manual configuration and for those we provide an API that works regardless of whether this is a Gradle plugin, an Android library or a Kotlin Multiplatform project. This is especially useful for projects that combine multiple of these.
    Downloads: 3 This Week
    Last Update:
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  • 20
    tinylog

    tinylog

    tinylog is a lightweight logging framework for Java, Kotlin, Scala

    Simplify your logging with tinylog. The lightweight logging framework can be used with Java, Kotlin, Scala, and any other JVM language. tinylog is open source and runs wherever Java is used: JVM, GraalVM, and Android.
    Downloads: 3 This Week
    Last Update:
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  • 21
    .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: 2 This Week
    Last Update:
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  • 22
    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: 2 This Week
    Last Update:
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  • 23
    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: 2 This Week
    Last Update:
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  • 24
    JetPackMvvm

    JetPackMvvm

    A Jetpack combined with the MVVM rapid development framework

    A Jetpack combined with the MVVM rapid development framework, based on the MVVM model to integrate the JetPack component library officially recommended by Google: LiveData, ViewModel, Lifecycle, and Navigation components use Kotlin language, add a lot of extension functions, simplify the code and add Retrofit network requests, coroutines, to help you Simplify various operations, allowing you to quickly develop projects. The sample format is the data format returned by the Android Api. If the errorCode is equal to 0, the request is successful, otherwise the request fails. From the developer's point of view, we mainly want to get the unpacking data-data, and we don't want to judge errorCode==0 every time. Whether the request is successful or failed At this time, we can inherit BaseResponse in the server return database class and implement related methods.
    Downloads: 2 This Week
    Last Update:
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  • 25
    KOIN

    KOIN

    Pragmatic lightweight dependency injection framework for Kotlin

    The pragmatic Kotlin & Kotlin Multiplatform Dependency Injection framework. A framework to help you build any kind of Kotlin & Kotlin Multiplatform application, from Android mobile, and Multiplatform apps to backend Ktor server applications Koin is developed by Kotzilla and open-source contributors. Koin is a smart Kotlin dependency injection library to keep you focused on your app, not on your tools. Koin gives you simple tools and API to let you build, assemble Kotlin related technologies into your application and let you scale your business with easyness.
    Downloads: 2 This Week
    Last Update:
    See Project
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