List of Kotlin software and tools

This is a list of software and programming tools for the Kotlin programming language, which includes frameworks, libraries, IDEs, build tools, and related projects.

Kotlin frameworks

• Arrow — functional programming framework ^{[1] [2]}
• Jetpack Compose — modern Android UI toolkit written in Kotlin ^[3]
• Ktor — asynchronous web framework developed by JetBrains ^{[4] [5]}
• Micronaut — modern microservices framework with Kotlin ^[6]
• Quarkus — Kubernetes-native Java framework optimized for GraalVM and Kotlin ^[7]
• Spring Framework — major Java framework that provides full Kotlin support ^[8]

Libraries

• Clikt — command-line interface toolkit ^{[9] [10]}
• Exposed — Kotlin object-relational mapping framework by JetBrains ^[11]
• Fuel — Kotlin HTTP networking library ^[12]
• Kodein — dependency injection framework ^[13]
• Koin — lightweight dependency injection library ^{[14] [15] [16]}
• Kotlin standard library — core APIs for Kotlin on the JVM, JavaScript, and Native platforms ^[17]
• Kotlinx.atomicfu — atomic operations for concurrent programming ^{[18] [19]}
• Kotlinx.collections.immutable — persistent collection library ^[20]
• Kotlinx.coroutines — library for asynchronous programming and coroutine support ^{[21] [22]}
• Kotlinx.datetime — modern date and time API ^{[23] [24]}
• Kotlinx.serialization — multiplatform JSON and binary serialization ^{[25] [26]}
• OkHttp — popular HTTP client used with Kotlin and Java ^[27]
• Okio — I/O library used in many Kotlin projects ^[28]
• Realm — mobile database with Kotlin API ^{[29] [30]}
• Retrofit — type-safe HTTP client for Android and Kotlin ^[31]
• TornadoFX — JavaFX framework ^[32]

Machine learning and AI

• Deeplearning4j — JVM-based deep learning framework usable with Kotlin ^[33]
• KotlinDL — deep learning library from JetBrains, built on TensorFlow, inspired by Keras ^[34]
• Smile — machine learning library for JVM languages including Kotlin ^[35]

Build tools and package managers

• Gradle — build automation tool with Kotlin DSL for build scripts ^[36]
• JitPack — package repository supporting Kotlin and Java projects
• Kobalt — build automation tool inspired by Gradle, written in Kotlin. ^[37]
• Maven — supported build system projects ^[38]
• TeamCity — continuous integration server from JetBrains with Kotlin DSL for pipelines ^[39]

Integrated development environments

• Android Studio — official IDE for Android development, supports Kotlin by default.
• Eclipse IDE — supports Kotlin via plug-ins ^[40]
• 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 ^[41]

Online IDEs

See also: List of online integrated development environments

• 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. ^[42]
• K2 — official compiler by JetBrains (JVM, JS, Native) ^[43]
• Kotlin/JS — transpiles Kotlin code to JavaScript ^[44]
• Kotlin/JVM — Kotlin compiled to Java bytecode for the JVM ^[45]
• Kotlin Multiplatform — share code across Android, iOS, desktop, and web targets. ^{[46] [47]}
• Kotlin/Native — compiles Kotlin directly to machine code using LLVM ^{[48] [49]}

Testing and quality assurance

• AssertK — assertion library ^[50]
• Detekt — static code analysis ^{[51] [52]}
• JUnit 5 — fully compatible with Kotlin ^[53]
• Kotest — unit testing and property-based testing framework ^{[54] [55]}
• ktlint — automatic code style and linting tool ^[56]
• MockK — mocking framework designed ^[57]
• Spek — Behavior-driven development (BDD) testing framework ^{[58] [59]}
• SonarQube — supports Kotlin static code analysis ^[60]

Debugging and profiling tools

• Android Profiler — built into Android Studio for profiling Kotlin Android apps ^{[61] [62]}
• JProfiler — commercial profiler with Kotlin compatibility ^[63]
• Kotlin REPL — interactive shell for quick code testing ^[64]
• VisualVM — profiling and performance analysis for JVM-based Kotlin apps ^[65]

Documentation and learning tools

• Dokka — documentation engine for Kotlin, similar to Javadoc ^{[66] [67]}
• Hyperskill — Kotlin programming curriculum for Kotlin and other programming languages ^[68]
• Kotlin Koans — interactive exercises for learning Kotlin
• Kotlin Playground — official browser-based code runner
• Kotlin online compiler – online integrated development environment

Other

• Compose Multiplatform — UI toolkit by JetBrains for desktop, Android, and web. ^[69]
• Kotlin scripting — embedded scripting support for Kotlin files .kts ^[70]
• KSP (Kotlin Symbol Processing) — compiler plugin API for annotation processing ^{[71] [72] [73]}

See also

• Java (programming language)
• List of Java software and tools
• Lists of programming software development tools
• List of JVM languages

External links

• Official Kotlin website
• Kotlin on GitHub
• Awesome-kotlin – GitHub repository of Kotlin projects
• Kotlin Documentation

References

1. "Arrow" . Retrieved 17 October 2025.
2. arrow on GitHub. Release 61. URL accessed 17 October 2025.

   Arrow is a library for Typed Functional Programming in Kotlin. Arrow aims to provide a lingua franca of interfaces and abstractions across Kotlin libraries.

3. "Jetpack Compose UI App Development Toolkit". Android Developers. Retrieved 17 October 2025. Jetpack Compose is Android's recommended modern toolkit for building native UI.
4. "Ktor: Build Asynchronous Servers and Clients in Kotlin". JetBrains . Retrieved 17 October 2025. Ktor is built from the ground up using Kotlin and Coroutines.
5. ktor on GitHub. Release 91. URL accessed 17 October 2025.

   Framework for quickly creating connected applications in Kotlin with minimal effort

6. López, Iván; del Amo, Sergio. "Creating your first Micronaut application". Micronaut Foundation. Retrieved 17 October 2025. Micronaut Version: 4.9.1. In this guide, we will create a Micronaut application written in Kotlin.
7. "Using Kotlin". Quarkus. Commonhaus Foundation. Retrieved 17 October 2025. Quarkus provides first class support for using Kotlin as will be explained in this guide.
8. "Get started with Spring Boot and Kotlin". JetBrains. 1 August 2025. Retrieved 17 October 2025.
9. Alt, AJ. "Clikt" . Retrieved 17 October 2025. Clikt (pronounced "clicked") is a multiplatform Kotlin library that makes writing command line interfaces simple and intuitive. It's the "Command Line Interface for Kotlin".
10. clikt on GitHub. Release 41. URL accessed 17 October 2025.
11. Exposed on GitHub. Release 61. URL accessed 17 October 2025.

    Kotlin SQL Framework

12. fuel on GitHub. Release 51. URL accessed 17 October 2025.

    The easiest HTTP networking library for Kotlin backed by Kotlinx Coroutines.

13. Kodein on GitHub. Release 42. URL accessed 17 October 2025.

    KODEIN is a straightforward and yet very useful dependency retrieval container.

14. "Koin - The pragmatic Kotlin Injection Framework". Kotzilla. Retrieved 17 October 2025. The pragmatic Kotlin & Kotlin Multiplatform Dependency Injection framework
15. koin on GitHub. Release 41. URL accessed 17 October 2025.

    ...developed by Kotzilla and open-source contributors.

16. "Dependency Injection in Android With Koin". GeeksforGeeks. 23 July 2025. Retrieved 17 October 2025.
17. "kotlin-stdlib". Kotlin Programming Language. JetBrains . Retrieved 17 October 2025.
18. Elizarov, Roman; Liutikas, Aurimas; Dryomov, Artur (23 December 2019). "AtomicFU". android.googlesource.com. Retrieved 17 October 2025.
19. kotlinx-atomicfu on GitHub. Release 82. URL accessed 17 October 2025.

    Atomicfu is a multiplatform library that provides the idiomatic and efficient way of using atomic operations in Kotlin.

20. kotlinx.collections.immutable on GitHub. Release 12. URL accessed 17 October 2025.

    Immutable collection interfaces and implementation prototypes for Kotlin.

21. https://github.com/Kotlin/kotlinx.coroutines
22. https://kotlinlang.org/docs/coroutines-guide.html
23. https://github.com/Kotlin/kotlinx-datetime
24. https://kotlinlang.org/api/kotlinx-datetime/kotlinx-datetime/kotlinx.datetime/
25. https://github.com/Kotlin/kotlinx.serialization
26. https://kotlinlang.org/docs/serialization.html
27. https://github.com/square/okhttp
28. https://github.com/square/okio
29. https://github.com/realm/realm-kotlin
30. https://plugins.gradle.org/plugin/io.realm.kotlin
31. https://www.geeksforgeeks.org/kotlin/retrofit-with-kotlin-coroutine-in-android/
32. https://github.com/edvin/tornadofx
33. https://github.com/deeplearning4j/deeplearning4j
34. https://github.com/Kotlin/kotlindl
35. https://github.com/haifengl/smile
36. https://kotlinlang.org/docs/gradle.html
37. https://github.com/cbeust/kobalt
38. https://kotlinlang.org/docs/maven.html
39. https://kotlinlang.org/docs/kotlin-and-ci.html
40. https://kotlinlang.org/docs/kotlin-ide.html
41. https://github.com/Kotlin/kotlin-lsp
42. https://ktor.io/docs/graalvm.html
43. https://kotlinlang.org/docs/k2-compiler-migration-guide.html
44. https://kotlinlang.org/docs/js-ir-compiler.html
45. https://kotlinlang.org/docs/compiler-reference.html
46. https://kotlinlang.org/docs/multiplatform.html
47. https://developer.android.com/kotlin/multiplatform
48. https://github.com/JetBrains/kotlin/blob/master/kotlin-native/README.md#building-from-source
49. https://github.com/JetBrains/kotlin/tree/master/kotlin-native
50. https://github.com/assertk-org/assertk
51. https://github.com/detekt/detekt
52. https://detekt.dev/
53. https://kotlinlang.org/docs/jvm-test-using-junit.html
54. https://kotest.io/
55. https://github.com/kotest/kotest
56. https://github.com/pinterest/ktlint
57. https://mockk.io/
58. https://www.spekframework.org/
59. https://github.com/spekframework/spek
60. https://docs.sonarsource.com/sonarqube-server/analyzing-source-code/languages/kotlin
61. https://developer.android.com/studio/profile
62. https://developer.android.com/studio/profile/standalone-profiler
63. https://support.inductiveautomation.com/hc/en-us/articles/18552836545677-JProfiler-Basics
64. https://kotlinlang.org/docs/command-line.html#run-the-repl
65. https://visualvm.github.io/graal.html
66. https://github.com/Kotlin/dokka
67. https://kotlinlang.org/docs/dokka-get-started.html
68. https://github.com/hyperskill/hyperskill-plugin
69. https://github.com/JetBrains/compose-multiplatform
70. https://github.com/Kotlin/kotlin-script-examples
71. https://kotlinlang.org/docs/ksp-overview.html
72. https://github.com/google/ksp
73. https://developer.android.com/build/migrate-to-ksp