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

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  • 1
    Hacker Scripts

    Hacker Scripts

    Based on a true story

    Hacker Scripts is a cheeky collection of small automation scripts and language ports collected under the tagline “Based on a true story.” The repository gathers playful utilities (originally shell and Ruby scripts) that automate short, real-world tasks — for example, sending a quick “late at work” text when SSH sessions are active, firing off an automated “I’m sick / working from home” email on certain mornings, or even talking to a networked coffee machine to start brewing at precisely the right moment. The README explains the origin story and highlights several canonical scripts and provides usage notes such as required environment variables and cron examples for scheduling. Contributors have provided implementations and ports in many languages and folders (shell, Ruby, Python, Node, Perl, PowerShell, Go, Java, etc.), and the project explicitly welcomes pull requests that add additional language implementations.
    Downloads: 122 This Week
    Last Update:
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  • 2
    Rekado

    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.
    Downloads: 79 This Week
    Last Update:
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  • 3
    Mtk Easy Su

    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.
    Downloads: 37 This Week
    Last Update:
    See Project
  • 4
    my-tv-0

    my-tv-0

    My TV·〇 TV video playback device can customize the TV source

    my-tv-0 is an open-source television streaming application that allows users to play video content from customizable sources, offering a flexible alternative to traditional IPTV solutions. The software supports multiple configuration formats, enabling users to define their own channel lists and video streams using files such as M3U, JSON, or TXT. It is designed to run on Android-based devices, including TV boxes and smart TVs, providing a simple interface for browsing and switching between channels. The application emphasizes user control, allowing remote configuration through QR codes or local network endpoints, which simplifies setup and management. It also includes features such as favorites, channel grouping, and automatic updates of video sources upon startup. The system supports local and remote video sources, making it adaptable for both personal media libraries and live streaming setups.
    Downloads: 13 This Week
    Last Update:
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  • 5
    PhotoEditor

    PhotoEditor

    A Photo Editor library with simple, easy support for image editing

    A Photo Editor library with simple, easy support for image editing using Paints, Text, Filters, Emoji and Sticker like stories. Drawing on the image with the option to change its Brush's Color, Size, Opacity, Erasing and basic shapes. Apply Filter Effect on the image using MediaEffect. Adding/Editing Text with the option to change its Color with Custom Fonts. Adding Emoji with Custom Emoji Fonts. Adding Images/Stickers. Pinch to Scale and Rotate views. Undo and Redo for Brush and Views. Deleting Views. Saving Photo after editing. More FAQ. PhotoEditor v.1.0.0 is a migration to androidX and dropping the support of the older support library. There are no API changes. If you find any issues migrating to v.1.0.0, please follow this Guide. If you still facing the issue then you can always rollback to v.0.4.0.
    Downloads: 11 This Week
    Last Update:
    See Project
  • 6
    Image Picker Library for Android

    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.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 7
    Linux Command Library (Mobile+CLI+Web)

    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.
    Downloads: 10 This Week
    Last Update:
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  • 8
    PartiQL Lang Kotlin

    PartiQL Lang Kotlin

    PartiQL libraries and tools in Kotlin.

    This is a Kotlin implementation of the PartiQL specification. PartiQL is based on SQL-92 and has added support for working with schemaless hierarchical data. PartiQL’s extensions to SQL are easy to understand, treat nested data as first-class citizens, and compose seamlessly with each other and SQL. This repository contains an embeddable reference interpreter, test framework, and tests for PartiQL in Kotlin.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 9
    Gitnuro

    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.
    Downloads: 5 This Week
    Last Update:
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  • 10
    MRepo

    MRepo

    A Modules Manager for Magisk & KernelSU

    MRepo (short for My Repository or Modules Repository) is an Android app that helps manage your own modules repository.
    Downloads: 5 This Week
    Last Update:
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  • 11
    Gramophone

    Gramophone

    A sane music player built with media3 and material design library

    A sane media3-based Material3 music player that follows Android standards. Gramophone is a sane music player built with media3 and a material design library that follows android's standards strictly.
    Downloads: 4 This Week
    Last Update:
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  • 12
    CPU Info

    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.
    Downloads: 3 This Week
    Last Update:
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  • 13
    Kotlin Language Server

    Kotlin Language Server

    Kotlin code completion, diagnostics and more for any editor/IDE

    A language server that provides smart code completion, diagnostics, hover, document symbols, definition lookup, method signature help and more for Kotlin.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 14
    Myne

    Myne

    An android app to download ebooks from Project Gutenberg

    Myne is a FOSS Android application to download ebooks from Project Gutenberg, it uses GutenDex API to fetch metadata of ebooks in the backend.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 15
    Jetpack Compose Playground

    Jetpack Compose Playground

    Community-driven collection of Jetpack Compose example code

    This is a community-driven collection of Jetpack Compose documentation/examples/tutorials and demos. Jetpack Compose is a modern toolkit for building native Android UI. Jetpack Compose simplifies and accelerates UI development on Android with less code, powerful tools, and intuitive Kotlin APIs.
    Downloads: 2 This Week
    Last Update:
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  • 16
    Kotlin JDSL

    Kotlin JDSL

    Kotlin library that makes it easy to build and execute queries

    Kotlin JDSL is a Kotlin library that makes it easy to build a query without a generated metamodel. There are many libraries that use an annotation processing tool (APT) to do the job. However, with the APT, you have to recompile whenever the name or type of field in an entity or a table class is changed. Kotlin JDSL provides a domain-specific language (DSL) based on KClass and KProperty to help you easily build queries without such inconveniences from the APT. Kotlin JDSL does not provide an executor or a wrapper class as it is designed to help you build and execute queries with the library you are using.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 17
    MarvelHeroes

    MarvelHeroes

    A sample Marvel heroes application based on MVVM

    MarvelHeroes is a demo application based on modern Android application tech-stacks and MVVM architecture. Fetching data from the network and integrating persisted data in the database via repository pattern.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 18
    Pinview

    Pinview

    A pinview library for Android

    Pinview library for Android.
    Downloads: 2 This Week
    Last Update:
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  • 19
    kotlinx.html

    kotlinx.html

    Kotlin DSL for HTML

    A kotlinx.html library provides DSL to build HTML to Writer/Appendable or DOM. Available to all Kotlin Multiplatform targets and browsers (or other JavaScript engines) for better Kotlin programming for the Web.
    Downloads: 2 This Week
    Last Update:
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  • 20
    Android Developer Roadmap

    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.
    Downloads: 1 This Week
    Last Update:
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  • 21
    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: 1 This Week
    Last Update:
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  • 22
    Anvil

    Anvil

    A Kotlin compiler plugin to make dependency injection with Dagger 2

    Anvil is a Kotlin compiler plugin to make dependency injection with Dagger easier by automatically merging Dagger modules and component interfaces. In a nutshell, instead of manually adding modules to a Dagger component and making the Dagger component extend all component interfaces, these modules and interfaces can be included in a component automatically.
    Downloads: 1 This Week
    Last Update:
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  • 23
    Beagle

    Beagle

    Customizable debug menu library for Android apps

    A smart, reliable, and highly customizable debug menu library for Android apps that supports screen recording, network activity logging, and many other useful features.
    Downloads: 1 This Week
    Last Update:
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  • 24
    Compose Rich Editor

    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.
    Downloads: 1 This Week
    Last Update:
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  • 25
    Decompose

    Decompose

    Kotlin Multiplatform lifecycle-aware business logic components

    Decompose is a Kotlin Multiplatform library for breaking down your code into tree-structured lifecycle-aware business logic components (aka BLoC), with routing functionality and pluggable UI (Jetpack/Multiplatform Compose, Android Views, SwiftUI, Kotlin/React, etc.).
    Downloads: 1 This Week
    Last Update:
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