List of Kotlin software and tools

Kotlin frameworks

• Arrow — functional programming framework
• Jetpack Compose — modern Android UI toolkit written in Kotlin
• Ktor — asynchronous web framework developed by JetBrains
• Micronaut — modern microservices framework with Kotlin
• Quarkus — Kubernetes-native Java framework optimized for GraalVM and Kotlin
• Spring Framework — major Java framework that provides full Kotlin support

Libraries

• Clikt — command-line interface toolkit
• Exposed — Kotlin object-relational mapping framework by JetBrains
• Fuel — Kotlin HTTP networking library
• Kodein — dependency injection framework
• Koin — lightweight dependency injection library
• Kotlin standard library — core APIs for Kotlin on the JVM, JavaScript, and Native platforms
• Kotlinx.atomicfu — atomic operations for concurrent programming
• Kotlinx.collections.immutable — persistent collection library
• Kotlinx.coroutines — library for asynchronous programming and coroutine support
• Kotlinx.datetime — modern date and time API
• Kotlinx.serialization — multiplatform JSON and binary serialization
• OkHttp — popular HTTP client used with Kotlin and Java
• Okio — I/O library used in many Kotlin projects
• Realm — mobile database with Kotlin API
• Retrofit — type-safe HTTP client for Android and Kotlin
• TornadoFX — JavaFX framework

Machine learning and AI

• Deeplearning4j — JVM-based deep learning framework usable with Kotlin
• KotlinDL — deep learning library from JetBrains, built on TensorFlow, inspired by Keras
• Smile — machine learning library for JVM languages|JVM languages] including Kotlin

Build tools and package managers

• Gradle — build automation tool with Kotlin DSL for build scripts
• JitPack — package repository supporting Kotlin and Java projects
• Kobalt — build automation tool inspired by Gradle, written in Kotlin.
• Maven — supported build system projects
• TeamCity — continuous integration server from JetBrains with Kotlin DSL for pipelines

Integrated development environments

• Android Studio — official IDE for Android development, supports Kotlin by default.
• Eclipse IDE — supports Kotlin via plug-ins
• Fleet — next-generation IDE from JetBrains with Kotlin focus
• IntelliJ IDEA — flagship IDE by JetBrains, with full Kotlin support.
• Visual Studio Code — lightweight editor with Kotlin extensions

Online IDEs

• JDoodle — online compiler and runner for Kotlin code.
• Replit — browser-based IDE supporting Kotlin.

Kotlin runtimes, compilers, and platforms

• GraalVM — supports Kotlin as a JVM language for native image generation.
• K2 — official compiler by JetBrains
• Kotlin/JS — transpiles Kotlin code to JavaScript
• Kotlin/JVM — Kotlin compiled to Java bytecode for the JVM
• Kotlin Multiplatform — share code across Android, iOS, desktop, and web targets.
• Kotlin/Native — compiles Kotlin directly to machine code using LLVM

Testing and quality assurance

• AssertK — assertion library
• Detekt — static code analysis
• JUnit 5 — fully compatible with Kotlin
• Kotest — unit testing and property-based testing framework
• ktlint — automatic code style and linting tool
• MockK — mocking framework designed
• Spek — Behavior-driven development testing framework
• SonarQube — supports Kotlin static code analysis

Debugging and profiling tools

• Android Profiler — built into Android Studio for profiling Kotlin Android apps
• JProfiler — commercial profiler with Kotlin compatibility
• Kotlin REPL — interactive shell for quick code testing
• VisualVM — profiling and performance analysis for JVM-based Kotlin apps

Documentation and learning tools

• Dokka — documentation engine for Kotlin, similar to Javadoc
• Hyperskill — Kotlin programming curriculum for Kotlin and other programming languages
• — interactive exercises for learning Kotlin
• — official browser-based code runner
• – online integrated development environment

Other

• Compose Multiplatform — UI toolkit by JetBrains for desktop, Android, and web.
• Kotlin scripting — embedded scripting support for Kotlin files.kts
• KSP — compiler plugin API for annotation processing