Top 23 Java WebSocket Projects

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1. netty-socketio

   1 1 6,958 7.5 Java

   Socket.IO server implemented on Java. Realtime java framework

   

2. InfluxDB

   www.influxdata.com featured

   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.

   

3. jetlinks-community

   2 1 5,986 8.2 Java

   JetLinks 基于Java8,Spring Boot 2.x ,WebFlux,Netty,Vert.x,Reactor等开发, 是一个全响应式的企业级物联网平台。支持统一物模型管理,多种设备,多种厂家,统一管理。统一设备连接管理,多协议适配(TCP,MQTT,UDP,CoAP,HTTP等),屏蔽网络编程复杂性,灵活接入不同厂家不同协议等设备。实时数据处理,设备告警,消息通知,数据转发。地理位置,数据可视化等。能帮助你快速建立物联网相关业务系统。

   

   Project mention: JetLinks: Open-Source Reactive IoT Platform with Multi-Protocol Support | news.ycombinator.com | 2024-08-14

4. JDA

   3 18 4,497 8.9 Java

   Java wrapper for the popular chat & VOIP service: Discord https://discord.com

   

5. atmosphere

   4 1 3,715 7.1 Java

   Event Driven WebSockets Framework with Cross-Browser Fallbacks (by Atmosphere)

   

6. Undertow

   5 2 3,653 7.7 Java

   High performance non-blocking webserver

   

7. zfoo

   6 2 1,895 9.2 Java

   💡Extremely fast enterprise server framework, can be used in RPC, game server, web server.

   

8. Discord4J

   7 4 1,841 8.2 Java

   Discord4J is a fast, powerful, unopinionated, reactive library to enable quick and easy development of Discord bots for Java, Kotlin, and other JVM languages using the official Discord Bot API.

   

9. SaaSHub

   www.saashub.com featured

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

   

10. ballcat

    8 1 1,628 7.6 Java

    😸一个快速开发脚手架，快速搭建企业级后台管理系统，并提供多种便捷starter进行功能扩展。主要功能包括前后台用户分离，菜单权限，数据权限，定时任务，访问日志，操作日志，异常日志，统一异常处理，XSS过滤，SQL防注入，国际化 等多种功能

    

    Project mention: BallCat: Your New Secret Weapon for Supercharged Project Development | dev.to | 2025-04-19

    View the Project on GitHub

11. AutobahnAndroid

    9 0 1,528 3.4 Java

    WebSocket & WAMP in Java for Android and Java 8

    

12. openremote

    10 3 1,426 9.4 Java

    100% open-source IoT Platform - Integrate your devices, create rules, and analyse and visualise your data

    

13. jforgame

    11 0 997 7.4 Java

    jforgame是一个一站式游戏服务器开发框架。包含游戏服务器开发所需要的各种组件，比如网关，socket服务端与客户端，自定义高效消息编解码，游戏热更新，游戏通用工具等等。包含游戏服，跨服，匹配服，后台管理系统等实现，同时提供大量业务案例以供学习。亦可用于其他socket应用，例如及时聊天等。

    

14. ezyfox-server

    12 1 643 4.2 Java

    A socket server (include SSL) supports realtime application, realtime game, MMORPG, messaging, chat and streaming data with TCP, UDP and Websocket

    

15. java-slack-sdk

    13 2 586 9.3 Java

    Slack Developer Kit (including Bolt for Java) for any JVM language

    

16. webtau

    14 13 373 4.4 Java

    WebTau (web test automation) is a testing API, command line tool and a framework to write unit, integration and end-to-end tests. Test across REST-API, WebSocket, GraphQL, Browser, Database, CLI and Business Logic with a consistent set of matchers and concepts. REPL mode speeds-up tests development. Rich reporting cuts down investigation time.

    

17. simple-openai

    15 1 316 9.2 Java

    A Java library to use the OpenAI Api in the simplest possible way.

    

    Project mention: Simple-OpenAI: An OpenAI Java community library | news.ycombinator.com | 2025-02-10

18. Firefly

    16 0 296 4.8 Java

    Firefly is an asynchronous web framework for rapid development of high-performance web application. (by hypercube1024)

    

19. module-ballerina-websocket

    17 1 116 9.7 Java

    Ballerina WebSocket Module

    

20. Magician

    18 3 107 3.7 Java

    Magician is a small HTTP service package based on Netty that makes it very easy to start an http service, and also supports WebSocket, using annotated configuration Handler, If you want to develop an http service with netty but find it cumbersome, then Magician may help you.

    

21. OEE-Designer

    19 1 99 6.2 Java

    The OEE-Designer is the build time environment for OEE applications.

    

22. java-tutorials

    20 2 38 5.3 Java

    📝 A repository containing different java tutorials

    

23. MCWebSocketPlugin

    21 1 9 0.0 Java

    A simple framework for building websocket-based integrations for Minecraft.

    

24. JavaChatSpa

    22 1 6 1.8 Java

    SPA Chat app (web app) that works on desktop/mobile UI

    

25. spring-chat-api

    23 1 6 0.0 Java

    Chat in Java Spring with Websockets and Redis

    

26. SaaSHub

    www.saashub.com featured

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

    

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• A note from our sponsor - InfluxDB
  www.influxdata.com | 12 Jun 2025

  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. Learn more →

Index

Sponsored

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.

www.influxdata.com

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