Open Source Kotlin Software - Page 6
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Kotlin Software
Browse free open source Kotlin Software and projects below. Use the toggles on the left to filter open source Kotlin Software by OS, license, language, programming language, and project status.
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The All-in-One Commerce Platform for Businesses - ShopifyShopify is a leading all-in-one commerce platform that enables businesses to start, build, and grow their online and physical stores. It offers tools to create customized websites, manage inventory, process payments, and sell across multiple channels including online, in-person, wholesale, and global markets. The platform includes integrated marketing tools, analytics, and customer engagement features to help merchants reach and retain customers. Shopify supports thousands of third-party apps and offers developer-friendly APIs for custom solutions. With world-class checkout technology, Shopify powers over 150 million high-intent shoppers worldwide. Its reliable, scalable infrastructure ensures fast performance and seamless operations at any business size.
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Gen AI apps are built with MongoDB AtlasMongoDB Atlas provides built-in vector search and a flexible document model so developers can build, scale, and run gen AI apps without stitching together multiple databases. From LLM integration to semantic search, Atlas simplifies your AI architecture—and it’s free to get started.
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v2flyNG
A V2Ray client for Android, support v2fly core
v2flyNG is a mobile client that packages the V2Ray/V2Fly networking core into an Android application with a touch-friendly UI. It focuses on making modern protocols—such as VMess, VLESS, and Trojan—accessible without requiring shell access or manual config editing. Profiles can be added via subscription links or QR codes, and the app merges and updates them on schedule to keep node lists fresh. Per-app proxy controls allow you to include or exclude specific applications, which is useful for balancing privacy with bandwidth and latency. The client exposes routing controls, TLS settings, custom DNS, and UDP handling so advanced users can fine-tune behavior. Status panels and logs help diagnose connectivity issues and confirm that rules are being applied as intended. -
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AndBible
AndBible: Bible Study
AndBible: Bible Study" is a powerful, yet easy to use, offline Bible study application for Android. The app does not aim to be simply a Bible reader, but focuses on being an advanced tool to do in-depth personal Bible study. This application is developed by Bible readers, for Bible readers. It aims at helping you make your Bible study convenient, deep and fun. The best part about this non-profit community project is that it is open-source, completely free, and contains no advertisements. A few popular Bible versions (of the many available) are KJV, NASB, NET, and also popular commentaries like Matthew Henry and John Gill. -
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AutoDev
The AI-powered coding wizard
The AI-powered coding wizard with multilingual support, auto code generation, and a helpful bug-slaying assistant. Customizable prompts and a magic Auto Dev/Testing/Document/Agent feature are included. -
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Jetpack Compose Samples
Jetpack Compose samples
Jetpack Compose is Android’s modern toolkit for building native UI. It simplifies and accelerates UI development on Android. Quickly bring your app to life with less code, powerful tools, and intuitive Kotlin APIs. Do more with less code and avoid entire classes of bugs, so code is simple and easy to maintain. Just describe your UI, and Compose takes care of the rest. As app state changes, your UI automatically updates. Compatible with all your existing code so you can adopt when and where you want. Iterate fast with live previews and full Android Studio support. Compose enables you to create beautiful apps with direct access to the Android platform APIs and built-in support for Material Design, Dark theme, animations, and more: “Compose has also solved more than declarative UI -- accessibility apis, layout, all kinds of stuff have been improved. There are fewer steps between the thing you want to make and actually making it” (Square). -
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KSP
Kotlin Symbol Processing API
KSP is Kotlin’s lightweight, idiomatic alternative to Java annotation processing that gives compile-time access to Kotlin program structure. Rather than forcing Kotlin through Java’s annotation APIs, it exposes Kotlin-first symbols—classes, functions, properties, types—so processors can generate code efficiently. The design dramatically reduces incremental build overhead by operating directly on symbols without compiling stubs, which speeds up large multi-module projects. Processors run as Gradle plugins, participate in incremental builds, and can target common use cases like DI bindings, JSON adapters, or UI glue code. Because the API reflects Kotlin semantics (nullability, visibility, type aliases, etc.), generated code aligns cleanly with Kotlin style and tooling. -
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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. -
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Kotlin multiplatform
Kotlin multiplatform / multi-format serialization
Kotlin serialization consists of a compiler plugin, that generates visitor code for serializable classes, a runtime library with core serialization API, and support libraries with various serialization formats. Using Kotlin Serialization requires Kotlin compiler 1.4.0 or higher. Make sure you have the corresponding Kotlin plugin installed in the IDE, no additional plugins for IDE are required. -
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LTEX LS
LTeX Language Server: LSP language server for LanguageTool
LTEX LS (LTEX Language Server) implements a language server according to the Language Server Protocol (LSP) and provides grammar and spelling errors in markup documents (LATEX, Markdown, etc.). The documents are checked with LanguageTool. Typically, you start the language server (either locally or remotely), you send the language server your LATEX or Markdown document, and it will respond with a list of the grammar and spelling errors in it. To use LTEX LS in this way, you have to use a language client (usually an editor or an extension of the editor) that communicates with LTEX LS according to the LSP. However, it is also possible to supply LTEX LS paths to files and directories to be checked as command-line arguments. In this mode, LTEX LS will print the results to standard output, and no language client is necessary. -
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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. -
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Logcat Reader
A simple app for viewing logs on an android device
Logcat Reader makes it easy to view and save the device logs. -
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OpenCalc
A simple and beautiful calculator for Android
A simple and beautiful calculator for Android. -
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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. -
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Pokedex
Pokedex demonstrates modern Android development with Hilt
Pokedex demonstrates modern Android development with Hilt, Material Motion, Coroutines, Flow, Jetpack (Room, ViewModel) based on MVVM architecture. -
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Simple Time Tracker
Simple app that tracks time.
Simple app that helps track how much time you spend on all the useless activities in the world. -
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Talaiot
Simple and extensible plugin to track task times in Gradle Project
Talaiot is an extensible library targeting teams using the Gradle Build System. It records build/task duration helping to understand problems of the build and detecting bottlenecks. For every record, it will add additional information defined by default or custom metrics. Talaiot is compatible with different systems like InfluxDb, Elasticsearch or RethinkDb. You need to use a Plugin to work with Talaiot. You can use the standard plugin, including all the functionality, or if you have a specific requirement with a individual plugin. -
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Trail Sense
Android app using phone's sensors to assist with survival situations
Designed for hiking, backpacking, camping, and geocaching. Trail Sense is a tool, and just like any other tool that you bring into the wilderness, it's essential to have backup equipment and skills. -
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Universal Android Music Player
A sample audio app for Android
Universal Android Music Player (UAMP) is a sample Android app provided by Google to demonstrate best practices in building a media playback app using Android's MediaSession, ExoPlayer, and modern architecture components. It supports background playback, notification controls, and integration with Android Auto and Wear OS. -
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WordPress for Android
WordPress for Android
If you're just looking to install WordPress for Android, you can find it on Google Play. If you're a developer wanting to contribute, read on. Inspiration strikes any time, anywhere. WordPress mobile apps put the power of publishing in your hands. And of course, they’re open source, just like WordPress. WordPress for Android lets you take the power to publish to the web with you. It is much more than a website builder. Give your great ideas a home on the web. WordPress for Android is a website and blog builder. Choose the perfect look from a wide selection of WordPress themes and customize it with photos, colors and fonts to make it unique. Built-in quick start tips will guide you through the basics of setting up your new website to take the internet by storm. -
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detekt Kotlin
Static code analysis for Kotlin
detekt helps you write cleaner Kotlin code so you can focus on what matters the most building amazing software. detekt comes with a set of plugins that helps you configure it easily in your Gradle, Maven, Bazel, ... build. Enjoy static analysis on Android, JVM, JS, Native, and Multiplatform projects out of the box. detekt can be easily extended with custom rules that help you track and fix anti-patterns in your codebase. detekt is entirely open-source and developed by the community. Join us on GitHub and help us shape the future of this tool. -
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http4k
The Functional toolkit for Kotlin HTTP applications
http4k is a lightweight but fully-featured HTTP toolkit written in pure Kotlin that enables the serving and consuming of HTTP services in a functional and consistent way. http4k applications are just Kotlin functions. http4k consists of a lightweight core library, http4k-core, providing a base HTTP implementation and Server/Client implementations based on the JDK classes. Further servers, clients, serverless, templating, websockets capabilities are then implemented in add-on modules. http4k apps can be simply mounted into a running Server, Serverless platform, or compiled to GraalVM and run as a super-lightweight binary. Apart the from Kotlin StdLib, http4k-core module has ZERO dependencies and weighs in at ~1mb. Add-on modules only have dependencies required for specific implementation. -
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mirai
Efficient QQ Robot support library
mirai is a high-efficiency robot library that runs on all platforms and provides QQ Android protocol support. mirai is completely free and open-source software for learning and entertainment use only. mirai will not impose fees or impose material conditions on users in any way. mirai is maintained by the entire open source community and is not the work of an individual. All contributors enjoy the copyright of their work. If citing a package published by mirai without modifying mirai, derived projects should mention the use of mirai anywhere in the description. Synchronize messages from other clients. Send messages to other clients. All development is for learning, do not use for illegal purposes. -
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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. -
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Android Contacts, Reborn
Android Contacts API Library written in Kotlin
This library provides a complete set of APIs to do everything you need with Contacts in Android. You no longer have to deal with the Contacts Provider, database operations, and cursors. Whether you just need to get all or some Contacts for a small part of your app (written in Kotlin or Java), or you are looking to create your own full-fledged Contacts app with the same capabilities as the AOSP Android Contacts app and Google Contacts app, this library is for you. -
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Android-Iconics
Use any icon font, or vector (.svg) as drawable in your application
Android-Iconics allows to include any icon font with all its vector icons in your project, no limits. Scale with no limit, use any color at any time, provide a contour, and many additional customizations. No customization limitations (size, color, contour, background, padding, positioning, ...). Shadow support. Use as XML Drawable starting API 24. One icon source (no more mdpi, hdpi, ...). If it takes a Drawable, it will also work with the IconicsDrawable. Save in APK size! Already available fonts include Google Material Design Icons, Material Design Iconic Font, Fontawesome, Meteocons, Octicons, Community Material, Weather Icons, Typeicons, Entypo, Devicon, Foundation Icons, Ionicons, Material Design DX, Pixeden 7 Stroke, Phosphor. Or create your own font with any icon needed. Fonts ending with -kotlin require at least v4.x of Android-Iconics Note: v5.1.x or newer requires the latest font versions. -
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Android-SwitchIcon
Google launcher-style implementation of switch (enable/disable) icon
Google launcher-style implementation of switch (enable/disable) icon. This library is compatible from API 15 (Android 4.0.3). SwitchIconView extends from AppCompatImageView so you can set icon with app:srcCompat. Set any icon (vector or image) to SwitchIconView and enjoy a switchable icon in your app. Use app:si_tint_color to set color to icon. The default color is black. Use app:si_animation_duration if you want to change switching state animation duration. Use app:si_no_dash if you don't want to draw dash, when icon is disabled. Use app:si_disabled_alpha to set alpha when icon disabled. The default alpha is .5.