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 →
Top 23 Java IntelliJ Projects
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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...
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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.
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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...
Kotlin can use any Java library, giving you access to powerful machine learning frameworks like DeepLearning4J, Smile, and Weka.
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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 | 2025-06-30Yep. 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...
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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...
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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.
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Swagger Plugin for JetBrains
A plugin to help you easily edit Swagger and OpenAPI specification files inside IntelliJ IDEA
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fabric-loom
Gradle build system plugin used to automate the setup of a minecraft mod development environment.
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Project mention: DDEV and PhpStorm's NodeJS Remote Interpreter for ESLint, Prettier, Tailwind, etc. | dev.to | 2025-02-27
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
Java IntelliJ discussion
Java IntelliJ related posts
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My Database Is My Application: Rethinking Webhook Logic with DuckDB and SQL
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Show HN: Toward Nirvana with Optional Parameters
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Kotlin for AI-Powered App Development
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CLion Is Now Free for Non-Commercial Use
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Growing a Language, by Guy Steele [pdf]
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Tell HN: An update on your Google Maps Timeline
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JetBrains Fleet drops support for Kotlin Multiplatform
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A note from our sponsor - Stream
getstream.io | 14 Jul 2025
Index
What are some of the best open-source IntelliJ projects in Java? This list will help you:
# | Project | Stars |
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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 |