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.

  • Create and run cloud-based virtual machines. Icon
    Create and run cloud-based virtual machines.

    Secure and customizable compute service that lets you create and run virtual machines.

    Computing infrastructure in predefined or custom machine sizes to accelerate your cloud transformation. General purpose (E2, N1, N2, N2D) machines provide a good balance of price and performance. Compute optimized (C2) machines offer high-end vCPU performance for compute-intensive workloads. Memory optimized (M2) machines offer the highest memory and are great for in-memory databases. Accelerator optimized (A2) machines are based on the A100 GPU, for very demanding applications.
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  • Outplacement, Executive Coaching and Career Development | Careerminds Icon
    Outplacement, Executive Coaching and Career Development | Careerminds

    Careerminds outplacement includes personalized coaching and a high-tech approach to help transition employees back to work faster.

    By helping to avoid the potential risks of RIFs or layoffs through our global outplacement services, companies can move forward with their goals while preserving their internal culture, employer brand, and bottom lines.
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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: 164 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: 65 This Week
    Last Update:
    See Project
  • 3
    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: 11 This Week
    Last Update:
    See Project
  • 4
    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: 10 This Week
    Last Update:
    See Project
  • Fully managed relational database service for MySQL, PostgreSQL, and SQL Server Icon
    Fully managed relational database service for MySQL, PostgreSQL, and SQL Server

    Focus on your application, and leave the database to us

    Cloud SQL manages your databases so you don't have to, so your business can run without disruption. It automates all your backups, replication, patches, encryption, and storage capacity increases to give your applications the reliability, scalability, and security they need.
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  • 5
    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: 10 This Week
    Last Update:
    See Project
  • 6
    kotlin-logging

    kotlin-logging

    Lightweight Multiplatform logging framework for Kotlin

    Lightweight Multiplatform logging framework for Kotlin, written in Pure Kotlin. A convenient and performant logging facade. Version 5 is not backward compatible with previous versions (v.3, v.2, v.1). Group id (in maven) and package names changed. It is possible to use both version 5 and previous versions side-by-side so some of the code from the old version and some new. It is also possible to have libs using old version and use the new version (and vice-versa). After seeing many questions like the Idiomatic way of logging in Kotlin and Best practices for loggers, it seems like there should be a standard for logging and obtaining a logger in Kotlin.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 7
    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: 9 This Week
    Last Update:
    See Project
  • 8
    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:
    See Project
  • 9
    Kotless

    Kotless

    Kotlin Serverless Framework

    Kotless stands for Kotlin serverless framework. Its focus lies in reducing the routine of serverless deployment creation by generating it straight from the code of the application itself. So, simply speaking, Kotless gives you one magic button to deploy your Web application as a serverless application on AWS and Azure. Kotless is able to deploy existing Spring Boot or Ktor applications to AWS serverless platform. To do it, you'll need to set up a plugin and replace the existing dependency with the appropriate Kotless DSL. One of the key features of Kotless is its ability to embed into existing applications. Kotless makes super easy deployment of existing Spring and Ktor applications to AWS and Microsoft Azure serverless platforms.
    Downloads: 9 This Week
    Last Update:
    See Project
  • The top-rated AI recruiting platform for faster, smarter hiring. Icon
    The top-rated AI recruiting platform for faster, smarter hiring.

    Humanly is an AI recruiting platform that automates candidate conversations, screening, and scheduling.

    Humanly is an AI-first recruiting platform that helps talent teams hire in days, not months—without adding headcount. Our intuitive CRM pairs with powerful agentic AI to engage and screen every candidate instantly, surfacing top talent fast. Built on insights from over 4 million candidate interactions, Humanly delivers speed, structure, and consistency at scale—engaging 100% of interested candidates and driving pipeline growth through targeted outreach and smart re-engagement. We integrate seamlessly with all major ATSs to reduce manual work, improve data flow, and enhance recruiter efficiency and candidate experience. Independent audits ensure our AI remains fair and bias-free, so you can hire confidently.
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  • 10
    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: 9 This Week
    Last Update:
    See Project
  • 11
    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: 9 This Week
    Last Update:
    See Project
  • 12
    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: 8 This Week
    Last Update:
    See Project
  • 13
    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: 8 This Week
    Last Update:
    See Project
  • 14
    KVision

    KVision

    Object oriented web framework for Kotlin/JS

    Build modern web applications with the full power of the Kotlin language. Choose yourself the preferred way. Almost 100 ready-to-use GUI components are used as building blocks for the application UI. Sophisticated layout containers. Forms with type safe data model and built-in validation. Different text input components including rich text, typeahead, and input mask support. Buttons, checkboxes, radios and switches. Date and time picker. Spinner and range numeric input components. Advanced select box with ajax support. File upload with preview and multi-selection. Advanced charts. Reactive tables. The navigation bar, toolbar, context menu and off-canvas sidebar. Tooltips and popovers. Modals including ready to use alerts and confirm dialogs. Floating, re-sizable windows. Configurable toasts. React components and Onsen UI mobile web components.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 15
    KotlinPoet

    KotlinPoet

    A Kotlin API for generating .kt source files

    KotlinPoet is a Kotlin and Java API for generating .kt source files. Source file generation can be useful when doing things such as annotation processing or interacting with metadata files (e.g., database schemas, protocol formats). By generating code, you eliminate the need to write boilerplate while also keeping a single source of truth for the metadata.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 16
    LivePlugin

    LivePlugin

    IntelliJ plugin for writing IntelliJ plugins at runtime

    Plugin for IntelliJ-based IDEs to create plugins at runtime using Kotlin and Groovy.
    Downloads: 8 This Week
    Last Update:
    See Project
  • 17
    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: 8 This Week
    Last Update:
    See Project
  • 18
    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: 7 This Week
    Last Update:
    See Project
  • 19
    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: 7 This Week
    Last Update:
    See Project
  • 20
    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: 7 This Week
    Last Update:
    See Project
  • 21
    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: 7 This Week
    Last Update:
    See Project
  • 22
    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: 7 This Week
    Last Update:
    See Project
  • 23
    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: 7 This Week
    Last Update:
    See Project
  • 24
    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:
    See Project
  • 25
    TransformationLayout

    TransformationLayout

    Transform between two Views, Activities, and Fragments

    Transform views, activity, and fragments into other components with container transform animations.
    Downloads: 7 This Week
    Last Update:
    See Project
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