Top 23 Kotlin Jvm Projects

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1. FXGL

   1 25 4,820 7.8 Kotlin

   Java / JavaFX / Kotlin Game Library (Engine)

   

2. SaaSHub

   www.saashub.com featured

   SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

   

3. koog

   2 7 4,348 9.9 Kotlin

   Koog is a JVM (Java and Kotlin) framework for building predictable, fault-tolerant and enterprise-ready AI agents across all platforms – from backend services to Android and iOS, JVM, and even in-browser environments. Koog is based on our AI products expertise and provides proven solutions for complex LLM and AI problems

   

   Project mention: Building an AI task generator for Vikunja that doesn't trust itself | dev.to | 2026-05-31

   The agent workflow runs on Koog, JetBrains' agent framework for Kotlin. The frontend is React + Vite. Everything ships as Docker Compose behind nginx with TLS.

4. kotlin-logging

   3 6 3,082 7.9 Kotlin

   Lightweight Multiplatform logging framework for Kotlin. A convenient and performant logging facade.

   

5. KorGE

   4 31 3,016 6.9 Kotlin

   A Kotlin Multiplatform Game Engine

   

6. keyguard-app

   5 2 2,998 9.8 Kotlin

   Alternative client for the Bitwarden® platform & KeePass (KDBX), created to provide the best user experience possible.

   

7. dependency-analysis-gradle-plugin

   6 12 2,144 9.4 Kotlin

   Gradle plugin for JVM projects written in Java, Kotlin, Groovy, or Scala; and Android projects written in Java or Kotlin. Provides advice for managing dependencies and other applied plugins

   

   Project mention: Is the Java ecosystem cursed? A dependency analysis perspective | dev.to | 2025-11-24

   I am the author of the moderately popular (⭐ 2k) Dependency Analysis Gradle Plugin, a static analysis tool that helps Gradle build authors maintain a healthy dependency graph. I also maintain some of the largest Gradle repos on the planet: a Kotlin backend repo with over 2500 subprojects, and an Android repo with more than 7200 subprojects (both proprietary). I have… seen some shit.

8. Orbit

   7 2 1,722 0.0 Kotlin

   Orbit - Virtual actor framework for building distributed systems (by orbit)

   

9. kotlin-result

   8 38 1,254 8.7 Kotlin

   A multiplatform Result monad for modelling success or failure operations.

   

   Project mention: We Programmers Need "Results" | news.ycombinator.com | 2025-10-31

   > But it feels a bit weird to client side construct an Exception only to stuff it into a Result.error(...) instead of actually throwing it

   yep, `kotlin.Result` constraining your error type to `Throwable` is a real headache as it forces you to still model your domain logic via exceptions. it also means people can still accidentally throw these exceptions. not to mention the overhead of creating stack traces per instantiation unless you disable that on every subclass.

   i recommend using https://github.com/michaelbull/kotlin-result?tab=readme-ov-f... (which has a nice breakdown of all the other reasons to avoid `kotlin.Result`)

10. cpu-info

    9 2 1,025 9.4 Kotlin

    CPU Info is a multiplatform application which provides information about device hardware and software

    

11. openrndr

    10 16 971 9.1 Kotlin

    OPENRNDR. A Kotlin/JVM library for creative coding, real-time and interactive graphics

    

12. FlowMVI

    11 6 926 9.5 Kotlin

    Architecture Framework for Kotlin. Reuse every line of code. Handle all errors automatically. No boilerplate. Build features in minutes. Analytics, metrics, debugging in 3 lines of code. Make all code thread-safe. 50+ features.

    

    Project mention: What are AI agent skills and how to use them - complete breakdown with examples | dev.to | 2026-01-12

    Recently I started seriously developing skills. I even created a marketplace of Claude plugins for Respawn, where I keep a skill for ksrc and a skill for FlowMVI. I'm increasingly using and creating different skills, and many of you are asking: "What even is this?". And I also see articles on the internet that incorrectly explain and incorrectly recommend creating and using skills.

13. MVIKotlin

    12 1 831 0.0 Kotlin

    Extendable MVI framework for Kotlin Multiplatform with powerful debugging tools (logging and time travel), inspired by Badoo MVICore library (by badoo)

    

14. Zircon

    13 10 788 5.5 Kotlin

    Zircon is an extensible and user-friendly, multiplatform tile engine.

    

15. asmble

    14 7 659 3.0 Kotlin

    Compile WebAssembly to JVM and other WASM tools

    

16. dotenv-kotlin

    15 2 567 5.7 Kotlin

    🗝️ Dotenv is a module that loads environment variables from a .env file

    

17. elide

    16 14 559 9.7 Kotlin

    fast multi-lang runtime (by elide-dev)

    

    Project mention: Why Node.js needs a virtual file system | news.ycombinator.com | 2026-03-17

    Most obviously, Java has JDBC. I think .NET has an equivalent. Drivers are needed but they're often first party, coming directly from the DB vendor itself.

    Java also has a JIT compiling JS engine that can be sandboxed and given a VFS:

    https://www.graalvm.org/latest/security-guide/sandboxing/

    N.B. there's a NodeJS compatible mode, but you can't use VFS+sandboxing and NodeJS compatibility together because the NodeJS mode actually uses the real NodeJS codebase, just swapping out V8. For combining it all together you'd want something like https://elide.dev which reimplemented some of the Node APIs on top of the JVM, so it's sandboxable and virtualizable.

18. kotlin-faker

    17 1 509 7.0 Kotlin

    Port of a popular ruby faker gem written in kotlin. Generate realistically looking fake data such as names, addresses, banking details, and many more, that can be used for testing and data anonymization purposes.

    

19. FDPClient

    18 4 503 9.0 Kotlin

    Minecraft 1.8.9 forge hacked client based on LiquidBounce.

    

20. xmlutil

    19 4 490 9.4 Kotlin

    XML Serialization library for Kotlin

    

    Project mention: I wrote my third XML parser. Here's why this one was different. | dev.to | 2026-04-26

    Not because the world needs another one. The world has xmlutil by Paul de Vrieze, which I will say specific nice things about further down. The world has JAXB. The world has, depending on how you count, several hundred XML libraries on Maven Central. Adding to the pile is not on anyone's wishlist.

21. lets-plot-kotlin

    20 2 484 9.0 Kotlin

    Grammar of Graphics for Kotlin

    

22. stacktrace-decoroutinator

    21 2 366 9.2 Kotlin

    Small lib for recovering stack trace in exceptions thrown in Kotlin coroutines

    

23. konfig

    22 0 286 0.0 Kotlin

    Simple config properties API for Kotlin (by npryce)

    

24. Turtle 🐢

    23 3 264 5.1 Kotlin

    Run shell commands from Kotlin scripts, apps or Gradle tasks with ease. (by lordcodes)

    

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• A note from our sponsor - SaaSHub
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  SaaSHub helps you find the best software and product alternatives Learn more →

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