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.

  • Passwordless Authentication and Passwordless Security Icon
    Passwordless Authentication and Passwordless Security

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    Comprehensive Cybersecurity to Safeguard Your Organization | SOCRadar

    See what hackers already know about your organization – and stop them from getting in.

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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: 58 This Week
    Last Update:
    See Project
  • 2
    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: 48 This Week
    Last Update:
    See Project
  • 3
    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: 12 This Week
    Last Update:
    See Project
  • 4
    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:
    See Project
  • Our Free Plans just got better! | Auth0 by Okta Icon
    Our Free Plans just got better! | Auth0 by Okta

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
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  • 5
    Gradle Advanced Build Version Plugin

    Gradle Advanced Build Version Plugin

    A plugin to generate the Android version code and version name

    A plugin to generate the Android version code and version name automatically based on git commits number, date and Semantic Versioning.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 6
    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: 7 This Week
    Last Update:
    See Project
  • 7
    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: 6 This Week
    Last Update:
    See Project
  • 8
    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:
    See Project
  • 9
    android-startup

    android-startup

    Performant way to initialize components at the application startup

    The Android Startup library provides a straightforward, performant way to initialize components at the application startup. Both library developers and app developers can use Android Startup to streamline startup sequences and explicitly set the order of initialization.
    Downloads: 4 This Week
    Last Update:
    See Project
  • Our Free Plans just got better! | Auth0 by Okta Icon
    Our Free Plans just got better! | Auth0 by Okta

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • 10
    AAA

    AAA

    Curated list of the best FOSS Android apps to maximize your freedom

    This is a list of the best FOSS apps according to us. You can prove us wrong on the contributing page.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 11
    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: 3 This Week
    Last Update:
    See Project
  • 12
    Calendar

    Calendar

    A highly customizable calendar view and compose library for Android

    A highly customizable calendar library for Android, backed by RecyclerView for the view system, and LazyRow/LazyColumn for compose. With this library, your calendar will look however you want it to.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 13
    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: 3 This Week
    Last Update:
    See Project
  • 14
    kaml

    kaml

    YAML support for kotlinx.serialization

    This library adds YAML support to Kotlinx serialization. Currently, only Kotlin/JVM is fully supported. Kotlin/JS support is considered highly experimental. It is not yet fully functional and may be removed or modified at any time.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 15
    Meow Bottom Navigation

    Meow Bottom Navigation

    Android Meow Bottm Navigation

    A simple & curved & material bottom navigation for Android written in Kotlin.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 16
    Sandwich

    Sandwich

    Sandwich is an adaptable and lightweight sealed API library

    Sandwich is an adaptable and lightweight sealed API library designed for handling API responses and exceptions in Android for Retrofit, and Kotlin Multiplatform for Ktor, and Ktorfit. Sandwich was conceived to streamline the creation of standardized interfaces to model responses from Retrofit, Ktor, and whatever. This library empowers you to handle body data, errors, and exceptional cases more succinctly, utilizing functional operators within a multi-layer architecture. With Sandwich, the need to create wrapper classes like Resource or Result is eliminated, allowing you to concentrate on your core business logic. Sandwich boasts features such as global response handling, Mapper, Operator, and exceptional compatibility, including ApiResponse With Coroutines.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 17
    AboutLibraries

    AboutLibraries

    AboutLibraries automatically collects all dependencies and licenses

    .. collects all dependency details including licenses at compile time, and offers simple APIs to visualize these in the app. No runtime overhead. Strong caching. Any gradle dependency is supported.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    Amazon Chime SDK for Android

    Amazon Chime SDK for Android

    An Android client library for integrating multi-party communications

    The Amazon Chime SDK for Android makes it easy to add collaborative audio calling, video calling, and screen share viewing features to Android applications by using the same infrastructure services that power meetings on the Amazon Chime service. This Amazon Chime SDK for Android works by connecting to meeting session resources that you have created in your AWS account. The SDK has everything you need to build custom calling and collaboration experiences in your Android application, including methods to: configure meeting sessions, list and select audio devices, switch video devices, start and stop screen share viewing, and receive callbacks when media events occur such as volume changes, and manage meeting features such as audio mute and video tile bindings. We also have an Amazon Chime SDK Project Board where you can find community requests and their statuses.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 19
    AtomicFU

    AtomicFU

    The idiomatic way to use atomic operations in Kotlin

    Atomicfu is a multiplatform library that provides an idiomatic and efficient way of using atomic operations in Kotlin.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    Binary compatibility validator

    Binary compatibility validator

    Public API management tool

    The tool allows dumping of binary API of a JVM part of a Kotlin library that is public in the sense of Kotlin visibilities and ensures that the public binary API wasn't changed in a way that makes this change binary incompatible.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 21
    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: 1 This Week
    Last Update:
    See Project
  • 22
    Croppy

    Croppy

    Image Cropping Library for Android

    Image cropping library for Android.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 23
    GraphQL Kotlin

    GraphQL Kotlin

    Libraries for running GraphQL in Kotlin

    graphql-java is one of the most popular JVM-based GraphQL implementations. GraphQL Kotlin is built on top of grahpql-java as it can be easily extended with additional functionality and this implementation has been used and tested by many users. The most common way to create the schema in graphql-java is to first manually write the SDL file. Then write the runtime code that matches this schema to build the GraphQLSchema object. This means that there are two sources of truth for your schema and changes in either have to be reflected in both locations. As your schema scales to hundreds of types and many different resolvers, it can get more difficult to track what code needs to be changed if you want to add a new field, deprecate or delete an existing one, or fix a bug in the resolver code. graphql-kotlin-schema-generator aims to simplify this process by using Kotlin reflection to generate the schema for you. All you need to do is write your schema code in a Kotlin class.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 24
    Kotlin Dataframe

    Kotlin Dataframe

    Structured data processing in Kotlin

    Data frame is an abstraction for working with structured data. Essentially it’s a 2-dimensional table with labeled columns of potentially different types. You can think of it like a spreadsheet or SQL table, or a dictionary of series objects. The handiness of this abstraction is not in the table itself but in a set of operations defined on it. The Kotlin Dataframe library is an idiomatic Kotlin DSL defining such operations. The process of working with data frame is often called data wrangling which is the process of transforming and mapping data from one "raw" data form into another format that is more appropriate for analytics and visualization. The goal of data wrangling is to assure quality and useful data.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    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: 1 This Week
    Last Update:
    See Project
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