Java IntelliJ

Open-source Java projects categorized as IntelliJ

Top 23 Java IntelliJ Projects

  1. intellij-community

    IntelliJ IDEA Community Edition & IntelliJ Platform

    Project mention: Show HN: I wrote a Java decompiler in pure C language | news.ycombinator.com | 2025-06-03

    I don't think it's available in a standalone repo but it IS available as a standalone library, IntelliJ's FernFlower decompiler is the gold standard https://github.com/JetBrains/intellij-community/blob/master/... https://www.jetbrains.com/intellij-repository/releases

    I guess there's some history there that I'm not familiar with because JBoss also has a FernFlower decompiler library https://mvnrepository.com/artifact/org.jboss.windup.decompil...

  2. InfluxDB

    InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

    InfluxDB logo
  3. Deeplearning4j

    Suite of tools for deploying and training deep learning models using the JVM. Highlights include model import for keras, tensorflow, and onnx/pytorch, a modular and tiny c++ library for running math code and a java based math library on top of the core c++ library. Also includes samediff: a pytorch/tensorflow like library for running deep learn...

    Project mention: Kotlin for AI-Powered App Development | dev.to | 2025-05-23

    Kotlin can use any Java library, giving you access to powerful machine learning frameworks like DeepLearning4J, Smile, and Weka.

  4. IntelliJ-Key-Promoter-X

    Modern IntelliJ plugin to learn shortcuts for buttons

  5. manifold

    Manifold is a Java compiler plugin, its features include Metaprogramming, Properties, Extension Methods, Operator Overloading, Templates, a Preprocessor, and more.

    Project mention: My Database Is My Application: Rethinking Webhook Logic with DuckDB and SQL | news.ycombinator.com | 2025-06-30

    Yep. Using DuckDB against conventional data sources such as JSON and CSV or even Parquet has amazing potential. Paired with manifold[1]--a Java library that makes it all type safe--and it's a game changer.

    1. https://github.com/manifold-systems/manifold/blob/master/doc...

  6. gpslogger

    :satellite: Lightweight GPS Logging Application For Android.

    Project mention: Tell HN: An update on your Google Maps Timeline | news.ycombinator.com | 2025-03-21

    I've since enabled https://github.com/mendhak/gpslogger/ which I sync over to my home server using syncthing.

    Also see https://github.com/Freika/dawarich/wiki/How-to-track-your-lo...

  7. phpinspectionsea

    A Static Code Analyzer for PHP (a PhpStorm/Idea Plugin)

  8. intellij-sdk-code-samples

    Mirror of the IntelliJ SDK Docs Code Samples

  9. Stream

    Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.

    Stream logo
  10. Swagger Plugin for JetBrains

    A plugin to help you easily edit Swagger and OpenAPI specification files inside IntelliJ IDEA

  11. jte

    Secure and speedy templates for Java and Kotlin.

  12. intellij

    IntelliJ plugin for Bazel projects

  13. intellij-erlang

    Erlang IDE

  14. Grammar-Kit

    Grammar files support & parser/PSI generation for IntelliJ IDEA

  15. StringManipulation

    IntelliJ plugin - https://plugins.jetbrains.com/plugin/2162

  16. packetevents

    A powerful networking library for Minecraft packet processing and manipulation.

  17. samples

    JavaFX samples to run with different options and build tools (by openjfx)

  18. darklaf

    Darklaf - A themeable swing Look and Feel based on Darcula-Laf

  19. Perl5-IDEA

    Perl5 plugins for IntelliJ IDEA

  20. fabric-loom

    Gradle build system plugin used to automate the setup of a minecraft mod development environment.

  21. java-oo

    Java Operator Overloading

  22. MavenHelper

    IntelliJ plugin - https://plugins.jetbrains.com/plugin/7179

  23. downlords-faf-client

    Official client for Forged Alliance Forever

  24. intellij-quarkus

    IntelliJ Quarkus Tools

  25. ddev-intellij-plugin

    DDEV Tool Integration for IntelliJ IDEA

    Project mention: DDEV and PhpStorm's NodeJS Remote Interpreter for ESLint, Prettier, Tailwind, etc. | dev.to | 2025-02-27
  26. SaaSHub

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

    SaaSHub logo
NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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Java IntelliJ related posts

  • My Database Is My Application: Rethinking Webhook Logic with DuckDB and SQL

    1 project | news.ycombinator.com | 30 Jun 2025
  • Show HN: Toward Nirvana with Optional Parameters

    1 project | news.ycombinator.com | 10 Jun 2025
  • Kotlin for AI-Powered App Development

    2 projects | dev.to | 23 May 2025
  • CLion Is Now Free for Non-Commercial Use

    6 projects | news.ycombinator.com | 7 May 2025
  • Growing a Language, by Guy Steele [pdf]

    1 project | news.ycombinator.com | 18 Apr 2025
  • Tell HN: An update on your Google Maps Timeline

    2 projects | news.ycombinator.com | 21 Mar 2025
  • JetBrains Fleet drops support for Kotlin Multiplatform

    3 projects | news.ycombinator.com | 11 Feb 2025
  • A note from our sponsor - Stream
    getstream.io | 14 Jul 2025
    Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure. Learn more →

Index

What are some of the best open-source IntelliJ projects in Java? This list will help you:

# Project Stars
1 intellij-community 18,156
2 Deeplearning4j 14,038
3 IntelliJ-Key-Promoter-X 3,082
4 manifold 2,578
5 gpslogger 2,193
6 phpinspectionsea 1,464
7 intellij-sdk-code-samples 1,198
8 Swagger Plugin for JetBrains 1,180
9 jte 979
10 intellij 795
11 intellij-erlang 745
12 Grammar-Kit 742
13 StringManipulation 729
14 packetevents 691
15 samples 629
16 darklaf 451
17 Perl5-IDEA 411
18 fabric-loom 285
19 java-oo 273
20 MavenHelper 266
21 downlords-faf-client 203
22 intellij-quarkus 126
23 ddev-intellij-plugin 125

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