Showing 309 open source projects for "kotlin"

View related business solutions
  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
    Start Free
  • Demo Series - Small Business Backup By Veeam Icon
    Demo Series - Small Business Backup By Veeam

    Learn how to protect your Microsoft 365 data, with simple, actionable tips today.

    Watch this on-demand demo series and learn how to protect your Microsoft 365 data with clear, simple, actionable steps that are easy to implement for businesses of all sizes.
    Watch Demo Series
  • 1
    Haze

    Haze

    Background blurring for Compose Multiplatform

    Haze is a modern UI library designed for Jetpack Compose and Compose Multiplatform that enables advanced background blurring effects commonly associated with glassmorphism design. It provides a high-level abstraction for creating dynamic blur effects that apply to content behind UI elements rather than just the elements themselves, solving a limitation of standard blur modifiers. The library is built on top of Compose’s graphics layer APIs, allowing it to operate consistently across multiple...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 2
    Android Interview Questions

    Android Interview Questions

    Your Cheat Sheet For Android Interview

    ...It includes explanations and Q&A on the Android app lifecycle, activities and fragments, services, broadcast receivers, content providers, and the build system. Modern practices are addressed as well—Kotlin language features, coroutines, Jetpack components, MVVM/MVI architecture, dependency injection, and testing strategies. Performance and reliability topics receive attention, such as memory management, threading, WorkManager, networking, and offline storage patterns. The content favors concise, practical answers that interviewers expect, helping candidates rehearse concepts and trade-offs rather than memorize trivia. ...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    SurvivalManual

    SurvivalManual

    Libre Survival Manual for Android with offline in mind

    This is a survival manual/guide based on the public domain US Army Survival Field Manual FM 3-05.70 (FM 21-76). It is fully functional offline, which is important in the case of a catastrophe. But it doesn't have to be used only in emergency situations, it can also be useful for outdoor trips, walks, camps, and learning about nature and yourself truly. This is not only fun, but you can also train skills (fire, build shelter, ...) that you may need in a catastrophe. Some things work best with...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    Pants Build System

    Pants Build System

    The Pants Build System

    Pants 2 is a fast, scalable, user-friendly build system for codebases of all sizes. It's currently focused on Python, Go, Java, Scala, Kotlin, Shell, and Docker, with support for other languages and frameworks coming soon. A lot of effort has gone into making Pants easy to adopt, easy to use and easy to extend. We're super excited to bring Pants' distinctive features to Go, Java, Python, Scala, Kotlin, and Shell users. Pants requires very minimal BUILD file metadata/boilerplate. ...
    Downloads: 0 This Week
    Last Update:
    See Project
  • Ship Agents Faster Icon
    Ship Agents Faster

    Transform your applications and workflows into powerful agentic systems at global scale.

    Gemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
    Get Started Free
  • 5
    AWS Toolkit for JetBrains

    AWS Toolkit for JetBrains

    A plugin for interacting with AWS from JetBrains IDEs

    The AWS Toolkit for JetBrains makes it easier to write applications built on Amazon Web Services. If you come across bugs with the toolkit or have feature requests, please raise an issue on our GitHub repository. See the user guide for how to get started, along with what features/services are supported. CodeWhisperer uses machine learning to generate code suggestions from the existing code and comments in your IDE. Supported languages include: Java, Python, and JavaScript. In addition to...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    Blurhash

    Blurhash

    Library to show colorful blurry placeholders while your content loads

    A library to show colorful blurry placeholders while your content loads. Does your designer cry every time you load their beautifully designed screen, and it is full of empty boxes because all the images have not loaded yet? Does your database engineer cry when you want to solve this by trying to cram little thumbnail images into your data to show as placeholders? Replace boring grey boxes with beautiful blurhash states and the designers will be happy. Blurhash strings are short enough to be...
    Downloads: 1 This Week
    Last Update:
    See Project
  • 7
    Spring Initializr

    Spring Initializr

    A quickstart generator for Spring projects

    A quickstart generator for Spring projects. The various options for the projects are expressed in a metadata model that allows you to configure the list of dependencies, supported JVM and platform versions, etc. Spring Initializr also exposes web endpoints to generate an actual project and also serve its metadata in a well-known format to allow third-party clients to provide the necessary assistance. A set of optional conventions for Spring Boot projects is provided and are used in our...
    Downloads: 11 This Week
    Last Update:
    See Project
  • 8
    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...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    AndroidLibXrayLite

    AndroidLibXrayLite

    Lightweight Android library that bundles the Xray networking core

    AndroidLibXrayLite is a lightweight Android library that bundles the Xray networking core as an embeddable component for apps. Its purpose is to provide a minimal, size-optimized build of the native core with a clear Java/Kotlin interface to start, stop, and configure network tunnels. By exposing the core as an AAR with per-ABI artifacts, it keeps application footprints small while supporting common CPU architectures. The library abstracts process management and log streaming so host apps can control lifecycles and capture diagnostics. It’s particularly useful for developers who want to integrate secure, rule-based proxying into their own Android apps without re-implementing the native glue. ...
    Downloads: 26 This Week
    Last Update:
    See Project
  • $300 Free Credits to Build on Google Cloud Icon
    $300 Free Credits to Build on Google Cloud

    New customers can spin up VMs, build with AI, and query data at no cost.

    Put your $300 in credit toward real workloads, then keep building with free monthly usage for 20+ products. No commitment and no charge until you upgrade.
    Start Free
  • 10
    pmd

    pmd

    An extensible multilanguage static code analyzer

    ...It supports Java, JavaScript, Salesforce.com Apex and Visualforce, Modelica, PLSQL, Apache Velocity, XML, XSL, and Scala. Additionally, it includes CPD, the copy-paste-detector. CPD finds duplicated code in C/C++, C#, Dart, Fortran, Go, Groovy, Java, JavaScript, JSP, Kotlin, Lua, Matlab, Modelica, Objective-C, Perl, PHP, PLSQL, Python, Ruby, Salesforce.com Apex, Scala, Swift, Visualforce and XML.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 11
    Elide

    Elide

    Elide is a Java library that lets you stand up a GraphQL/JSON-API

    ...Elide is a Java library that enables you to stand up JSON API or GraphQL web services in 4 simple steps. Define a JPA annotated model including relationships to other models using Java, Kotlin, Groovy, and other JVM languages. Control access to fields and entities through a declarative, intuitive permission syntax. Make instances of your new model accessible through a top level collection or restrict access only through relationships to other models. And thats it, you are ready to deploy and query your data with JSON or GraphQL requests. ...
    Downloads: 1 This Week
    Last Update:
    See Project
  • 12
    Mockito

    Mockito

    Most popular Mocking framework for unit tests written in Java

    ...Mockito 3.x requires Java 8, but otherwise doesn’t introduce any breaking changes compared to the 2.x series. Mockito 2.25.0 had an important feature added for anyone using mockito-inline. In particular anyone using Kotlin (which demands using mockito-inline) and PowerMock (which exacerbates the problem even more) will want to add this to all of their test classes to avoid a large memory leak. Fancy getting world-wide visibility and building up an eternal fame of an OSS contributor? Use the latest version! Hack and experiment. Speak up at the mailing list. ...
    Downloads: 3 This Week
    Last Update:
    See Project
  • 13
    zfoo

    zfoo

    Extremely fast enterprise server framework, can be used in RPC

    ...The framework supports single-server, microservice, cluster, and gateway deployment modes, making it adaptable to different production architectures. Its protocol system supports many languages, including Java, Kotlin, Scala, JavaScript, TypeScript, C#, Go, Python, Rust, C++, PHP, Ruby, Lua, Dart, Swift, and GDScript. zfoo also includes modules for networking, serialization, ORM, scheduling, configuration, and operational development workflows. It is especially useful for teams building high-performance game services or enterprise systems that need a unified backend foundation.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    Serverless Framework

    Serverless Framework

    The easy and open way to build serverless applications

    Serverless Framework gives you everything you need to build serverless applications on any cloud. It provides structure, workflow automation and best practices out-of-the-box so you can deploy sophisticated serverless architectures. It uses new, event-driven compute services, such as AWS Lambda, Azure Functions, Google CloudFunctions and more. Serverless Framework lets you build apps made up of microservices that run in response to events. These auto-scale and will only charge you when...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    Armeria

    Armeria

    Your go-to microservice framework for any situation

    ...Armeria is your go-to microservice framework for any situation. You can build any type of microservice leveraging your favorite technologies, including gRPC, Thrift, Kotlin, Retrofit, Reactive Streams, Spring Boot and Dropwizard. Let's embrace the reality, we almost always have to deal with more than one protocol. It was once Thrift, today it's gRPC, and REST never gets old. At the same time, you sometimes have to handle health check requests from a load balancer or even serve some static files. Armeria is capable of running services using different protocols, all on a single port. ...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    go-zero

    go-zero

    A cloud-native Go microservices framework with cli tool

    ...It’s born to ensure the stability of busy services with resilience design and has been serving sites with tens of millions of users for years. go-zero contains simple API description syntax and code generation tool called goctl. You can generate Go, iOS, Android, Kotlin, Dart, TypeScript, JavaScript from .api files with goctl. builtin chained timeout control, concurrency control, rate limit, adaptive circuit breaker, adaptive load shedding, even no configuration needed.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    JHipster

    JHipster

    Development platform to generate and deploy modern web apps

    ...We support many frontend technologies, including Angular, React, and Vue. We even have mobile app support for Ionic and React Native! On the backend, we support Spring Boot (with Java or Kotlin), Micronaut, Quarkus, Node.js, and .NET. For deployment, we embrace cloud native principles with Docker and Kubernetes. Deployment support exists for AWS, Azure, Cloud Foundry, Google Cloud Platform, Heroku, and OpenShift. Our goal is to generate a complete and modern web app or microservice architecture, unifying: A high-performance and robust server-side stack with excellent test coverage; a sleek, modern, mobile-first UI with Angular, React, or Vue + Bootstrap for CSS; and a powerful workflow to build your application with Webpack and Maven or Gradle.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    Strikt

    Strikt

    An assertion library for Kotlin

    Strikt is an assertion library for Kotlin intended for use with a test runner such as JUnit, Minutest, Spek, or KotlinTest. Strikt uses a fluent assertion style similar to AssertJ but leverages Kotlin's type system and extension functions rather than needing a complex hierarchy of assertion builder classes. Strikt is under development, but 100% usable. The API may change until version 1.0 is released.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    Libros de Programación en Español

    Libros de Programación en Español

    List of programming books in Spanish for free

    ...The README is structured as an index with general programming books, followed by sections for specific languages such as JavaScript, TypeScript, Python, Ruby, Rust, PHP, Haskell, Go, Kotlin, Java, and R.Each entry includes the book title, author, and a link to the official or legal free version (PDF, HTML, eBook, etc.), focusing on resources that are legitimately available. Beyond languages, the list also covers frameworks and libraries (like React and Qwik), tools (such as Git), and databases (SQL), grouping them in separate sections for easier browsing. ...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    NullAway

    NullAway

    A tool to help eliminate NullPointerExceptions (NPEs) in your code

    ...Given these annotations, NullAway performs a series of type-based, local checks to ensure that any pointer that gets dereferenced in your code cannot be null. NullAway is similar to the type-based nullability checking in the Kotlin and Swift languages, and the Checker Framework and Eradicate null checkers for Java. NullAway is fast. It is built as a plugin to Error Prone and can run on every single build of your code. In our measurements, the build-time overhead of running NullAway is usually less than 10%. NullAway is also practical: it does not prevent all possible NPEs in your code, but it catches most of the NPEs we have observed in production while imposing a reasonable annotation burden, giving a great "bang for your buck."
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Discord4J

    Discord4J

    Reactive library to enable quick and easy development of bots

    Discord4J is a fast, powerful, unopinionated, reactive library to enable quick and easy development of Discord bots for Java, Kotlin, and other JVM languages using the official Discord Bot API. Discord4J follows the reactive-streams protocol to ensure Discord bots run smoothly and efficiently regardless of size. Automatic rate-limiting, automatic reconnection strategies, and consistent naming conventions are among the many features Discord4J offers to ensure your Discord bots run-up to Discord's specifications and to provide the least amount of surprises when interacting with our library. ...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    Kweb

    Kweb

    A Kotlin web framework

    ...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: 0 This Week
    Last Update:
    See Project
  • 23
    libsu

    libsu

    A complete solution for apps using root permissions

    ...Instead of ad-hoc Runtime.exec calls, it offers structured sessions, proper I/O streams, and lifecycle handling that works reliably across devices. The library focuses on developer ergonomics: thread-safe helpers, Kotlin-friendly APIs, and utilities for file operations, process management, and parcelable data transfer. It’s designed to interoperate smoothly with Magisk-based root environments while degrading gracefully on non-rooted devices when possible. Attention is given to security and correctness—avoiding resource leaks, handling timeouts, and containing elevated operations to explicit scopes. ...
    Downloads: 6 This Week
    Last Update:
    See Project
  • 24
    Hoodland Toolbox

    Hoodland Toolbox

    An assorted miscellany of tools and toys.

    Hoodland Toolbox (formerly known as the Rockabilly Common Libraries) An assorted miscellany of tools and toys used by all other Hoodland Open Source Projects (formerly Rockabilly Software). This project has been rewritten in Kotlin for the JVM. Its new home is here: https://github.com/william-hood/toolbox-kotlin Available in Maven Central Repository... Kotlin: https://central.sonatype.com/artifact/io.github.william-hood/toolbox-kotlin Java: https://central.sonatype.com/artifact/io.github.william-hood/toolbox-java
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Koarse Grind (formerly Coarse Grind)

    Koarse Grind (formerly Coarse Grind)

    Test Automation framework intended for coarse-grained testing

    Koarse Grind has been rewritten in Kotlin (hence the 'K'). It's new home is here: https://github.com/william-hood/koarse-grind-kotlin __________________________________ Test Automation framework for Kotlin/Java with an integrated web-based user interface. It is intended for larger-grained testing of an installed & configured product, rather than unit testing.
    Downloads: 0 This Week
    Last Update:
    See Project