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
    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: 110 This Week
    Last Update:
    See Project
  • 2
    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: 79 This Week
    Last Update:
    See Project
  • 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: 64 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: 17 This Week
    Last Update:
    See Project
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  • 5
    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: 15 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
    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: 7 This Week
    Last Update:
    See Project
  • 8
    Kotlin Wrappers

    Kotlin Wrappers

    Kotlin wrappers for popular JavaScript libraries

    This repository hosts a number of Kotlin wrappers for popular JavaScript libraries. To learn more please refer to the READMEs of individual modules. Artifacts are published to Maven Central, see the corresponding README files for package coordinates. All packages require JDK 8 to be installed.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 9
    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: 6 This Week
    Last Update:
    See Project
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  • 10
    Scrimage

    Scrimage

    JVM - Java, Kotlin, Scala image processing library

    Scrimage is an immutable, functional, and performant JVM library for the manipulation of images. The aim of this library is to provide a simple and concise way to do common image operations, such as resizing to fit a required width and height, converting between formats, applying filters, and so on. It is easy to use from any language on the JVM. A typical use case for this library would be creating thumbnails of images uploaded by users in a web app, bounding a set of product images so that they all have the same dimensions, optimizing PNG uploads by users to apply maximum compression, or applying a grayscale filter in a print application.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 11
    Konfetti

    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.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 12
    LeakCanary

    LeakCanary

    A memory leak detection library for Android

    LeakCanary is a reliable memory leak detection library for Android. It effectively detects leaks and narrows down the cause of each leak through its in-depth knowledge of the internals of the Android Framework. This helps developers avoid and dramatically reduce OutOfMemoryError (OOM) crashes. A memory leak is a programming error that can cause an OutOfMemoryError crash. It’s often caused by bugs related to the lifecycle of objects, and can occur fairly often in Android applications. LeakCanary helps to find and fix those leaks during development so you never have to experience another OOM crash.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 13
    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
  • 14
    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: 2 This Week
    Last Update:
    See Project
  • 15
    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: 2 This Week
    Last Update:
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  • 16
    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: 2 This Week
    Last Update:
    See Project
  • 17
    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: 2 This Week
    Last Update:
    See Project
  • 18
    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: 2 This Week
    Last Update:
    See Project
  • 19
    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:
    See Project
  • 20
    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:
    See Project
  • 21
    Emoji

    Emoji

    A library to add Emoji support to your Android / JVM Application

    A Kotlin Multiplatform library to add Emoji support to your Android App / JVM Backend. Check out the sample jvm module for text parsing/searching functionality. PopupWindow which overlays over the soft keyboard. Normal view which is used by EmojiPopup and can also be used as a standalone to select emojis via categories. The library has 4 different sprites providers to choose from (iOS, Google, Facebook & Twitter). The emoji's are packaged as pictures and loaded at runtime. If you want to use a Font provider, check out Google Compat. For convenience, there's also a EmojiLayoutFactory, which can be used to get automatic Emoji support when using normal Android Views such as TextView, Checkbox, etc.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 22
    Hoplite

    Hoplite

    Boilerplate-free Kotlin config library for loading configuration files

    Hoplite is a Kotlin library for loading configuration files into typesafe classes in a boilerplate-free way. Define your config using Kotlin data classes, and at startup Hoplite will read from one or more config files, mapping the values in those files into your config classes. Any missing values, or values that cannot be converted into the required type will cause the config to fail with detailed error messages.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 23
    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: 1 This Week
    Last Update:
    See Project
  • 24
    LibChecker

    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.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    Material Dialogs

    Material Dialogs

    Fluid, and extensible dialogs API for Kotlin & Android

    Material Dialogs makes constructing and using Material Designed dialogs super elegant and fun. The core module is the fundamental module that you need in order to use this library. The others are extensions to core. Please note that since Material Dialogs 2.x.x, this library only supports Kotlin. The latest Java version is 0.9.6.0. Note that 0.9.6.0 is unsupported, bugs & improvements will not be made to that version. The core module contains everything you need to get started with the library. It contains all core and normal-use functionality. The input module contains extensions to the core module, such as a text input dialog. The files module contains extensions to the core module, such as a file and folder chooser. The color module contains extensions to the core module, such as a color chooser. The datetime module contains extensions to make date, time, and date-time picker dialogs.
    Downloads: 1 This Week
    Last Update:
    See Project
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