Java

Open-source projects categorized as Java

Top 23 Java Open-Source Projects

  • JavaGuide

    「Java学习+面试指南」一份涵盖大部分 Java 程序员所需要掌握的核心知识。准备 Java 面试,首选 JavaGuide!

    Project mention: How come there's no English version of JavaGuide? | /r/learnjava | 2023-04-08
  • Design Patterns

    Design patterns implemented in Java

    Project mention: I have been following the mooc java-1 from few days and i am on part-3 i want to ask some questions | /r/learnjava | 2023-06-06

    After that, more practice, and then Design Patterns (as in the famous book of the "Gang of Four": "Design Patterns: Elements of Reusable Object Oriented Software"). Here I'd recommend "Head First: Design Patterns" and Java Design Patterns as well as Refactoring Guru (the sites are more reference than course).

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  • advanced-java

    😮 Core Interview Questions & Answers For Experienced Java(Backend) Developers | 互联网 Java 工程师进阶知识完全扫盲:涵盖高并发、分布式、高可用、微服务、海量数据处理等领域知识

  • Spring Boot

    Spring Boot

    Project mention: AI PR adds auto generated comments to whole Spring Boot Project | news.ycombinator.com | 2024-02-27
  • Elasticsearch

    Free and Open, Distributed, RESTful Search Engine

    Project mention: Elasticsearch Version 9 | /r/elasticsearch | 2023-12-05

    You could check out their GitHub and see what is going on https://github.com/elastic/elasticsearch/issues

  • interviews

    Everything you need to know to get the job.

  • Java

    All Algorithms implemented in Java

  • Onboard AI

    ChatGPT with full context of any GitHub repo. Onboard AI learns any GitHub repo in minutes and lets you chat with it to locate functionality, understand different parts, and generate new code. Use it for free at app.getonboardai.com.

  • Guava

    Google core libraries for Java

    Project mention: Lists: do you know the nature of yours? The strange story of a data container in Java | dev.to | 2023-11-23

    The first problem is at the level of Type System, given that a situation more correct would allow us to distinguish through the Collection Type which abstraction we are operating with, species if definable as mutable or immutable. The JCF was born at a time when great care was taken to offer immediate operational data structures, and with attention to performance, but with less attention to constructs or uses that are now seen as common. These concepts have been taken up by other infrastructures from which we certainly cannot fail to mention: Eclipse Collection, Guava Collections, and VAVR.

  • RxJava

    RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.

    Project mention: Humble Chronicles: Managing State with Signals | /r/Clojure | 2023-05-16

    Is this similar RxJava, the reactive extensions library for https://github.com/ReactiveX/RxJava ? I have made that work in Clojure in production.

  • leetcode-master

    《代码随想录》LeetCode 刷题攻略:200道经典题目刷题顺序,共60w字的详细图解,视频难点剖析,50余张思维导图,支持C++,Java,Python,Go,JavaScript等多语言版本,从此算法学习不再迷茫!🔥🔥 来看看,你会发现相见恨晚!🚀

  • OkHttp

    Square’s meticulous HTTP client for the JVM, Android, and GraalVM.

    Project mention: Consuming and Testing third party API's using Spring Webclient | dev.to | 2024-02-19

    We will use Square’s Mock Webserver to spin up a mock server which we can use to simulate real api's request to the get coffee endpoint.

  • Retrofit

    A type-safe HTTP client for Android and the JVM

    Project mention: Using Retrofit Interceptors to check network connection in Android and testing it | dev.to | 2024-01-23

    from this point on, I will assume, you have a basic understanding of Retrofit. To get the most out of this tutorial I would actually suggest you have a retrofit client already implemented in your application.

  • Dubbo

    The java implementation of Apache Dubbo. An RPC and microservice framework.

  • jadx

    Dex to Java decompiler

    Project mention: Apktool in kali | /r/Kalilinux | 2023-12-07
  • Apache Spark

    Apache Spark - A unified analytics engine for large-scale data processing

    Project mention: 🦿🛴Smarcity garbage reporting automation w/ ollama | dev.to | 2024-01-31

    Consume data into third party software (then let Open Search or Apache Spark or Apache Pinot) for analysis/datascience, GIS systems (so you can put reports on a map) or any ticket management system

  • MPAndroidChart

    A powerful 🚀 Android chart view / graph view library, supporting line- bar- pie- radar- bubble- and candlestick charts as well as scaling, panning and animations.

  • jeecg-boot

    🔥「企业级低代码平台」前后端分离架构SpringBoot 2.x/3.x,SpringCloud,Ant Design&Vue,Mybatis,Shiro,JWT。强大的代码生成器让前后端代码一键生成,无需写任何代码! 引领新的开发模式OnlineCoding->代码生成->手工MERGE,帮助Java项目解决70%重复工作,让开发更关注业务,既能快速提高效率,帮助公司节省成本,同时又不失灵活性。

  • dbeaver

    Free universal database tool and SQL client

    Project mention: 👻Top 8 Free, Open Source SQL Clients🔥 | dev.to | 2023-09-04

    DBeaver is a veteran SQL client. In addition to basic visualization and management capabilities, it has a SQL editor, data and schema migration capabilities, monitor database connections, and more. It supports a full range of databases (both SQL and NoSQL). DBeaver is also hooked up with GPT-3, which converts your natural language to SQL.

  • Arthas

    Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas

    Project mention: FLaNK Stack Weekly for 20 June 2023 | dev.to | 2023-06-20
  • ZXing

    ZXing ("Zebra Crossing") barcode scanning library for Java, Android

    Project mention: What's the best way to generate a QR code? | /r/webdev | 2023-05-16
  • spring-boot-demo

    🚀一个用来深入学习并实战 Spring Boot 的项目。

  • appsmith

    Platform to build admin panels, internal tools, and dashboards. Integrates with 25+ databases and any API.

    Project mention: A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev | dev.to | 2024-02-05

    appsmith — Low code project to build admin panels, internal tools, and dashboards. Integrates with 15+ databases and any API.

  • easyexcel

    快速、简洁、解决大文件内存溢出的java处理Excel工具

  • WorkOS

    The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

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). The latest post mention was on 2024-02-27.

Java related posts

Index

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

Project Stars
1 JavaGuide 140,829
2 Design Patterns 85,865
3 advanced-java 73,463
4 Spring Boot 71,887
5 Elasticsearch 66,807
6 interviews 61,313
7 Java 55,970
8 Guava 49,114
9 RxJava 47,544
10 leetcode-master 45,639
11 OkHttp 45,074
12 Retrofit 42,467
13 Dubbo 39,822
14 jadx 38,193
15 Apache Spark 37,885
16 MPAndroidChart 37,137
17 jeecg-boot 37,123
18 dbeaver 36,143
19 Arthas 34,316
20 ZXing 32,024
21 spring-boot-demo 31,606
22 appsmith 30,900
23 easyexcel 30,477
The modern identity platform for B2B SaaS
The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
workos.com