hydro-dev/Hydro
Open on GitHubTypeScriptHydro - Next generation high performance online-judge platform - 新一代高效强大的信息学在线测评系统 (a.k.a. vj5)
- 1,469−2 Elo, change today
- 7.2k stars
- 496 forks
git clone https://github.com/hydro-dev/Hydro.gitTop Java repositories
Repositories with the GitHub topic “java”: 245 repositories with 5.1M stars between them, mostly written in Java, Kotlin and TypeScript. The highest-rated is morluto/rea, #1 on the bestofgithub Elo ladder.
Biggest movers this week
graphhopper/graphhopper
Open on GitHubJavaOpen source routing engine for OpenStreetMap. Use it as Java library or standalone web server.
- 1,523−1 Elo, change today
- 6.8k stars
- 1.9k forks
git clone https://github.com/graphhopper/graphhopper.gitTheAlgorithms/Java
Open on GitHubJavaAll Algorithms implemented in Java
- 2,039−18 Elo, change today
- 67.2k stars
- 21.5k forks
- 2.1k watchers
git clone https://github.com/TheAlgorithms/Java.gitorganicmaps/organicmaps
Open on GitHubC++🍃 Organic Maps is a free Android & iOS offline maps app for more than 12M travelers, tourists, hikers, and cyclists. It uses crowd-sourced OpenStreetMap data and is developed with love by the community. No ads, no tracking, no data collection, no crapware. Please donate to support the development!
- 1,755+7 Elo, change today
- 15.9k stars
- 1.7k forks
- 107 watchers
git clone https://github.com/organicmaps/organicmaps.gitspring-projects/spring-ai
Open on GitHubJavaAn Application Framework for AI Engineering
- 1,623+11 Elo, change today
- 9.6k stars
- 3k forks
git clone https://github.com/spring-projects/spring-ai.gitsemgrep/semgrep
Open on GitHubCLightweight static analysis for many languages. Find bug variants with patterns that look like source code.
- 1,846+7 Elo, change today
- 17.6k stars
- 1.1k forks
- 118 watchers
brew install semgrepTrending today
morluto/rea
Open on GitHubTypeScript- Legendary #1
- Hall of Fame #4
- Best of 2026 #1
- Trending #2 · 16-day streak
Reverse engineer anything with agents, from app behavior down to native binaries.
- 2,793+1 Elo, change today
- +2.1k stars gained
- 461k stars
- 113k forks
- 1.7k watchers
brew install reaTop 100 on the Elo ladder
- #1morluto/rea
Reverse engineer anything with agents, from app behavior down to native binaries.
- #196Stirling-Tools/Stirling-PDF
#1 PDF Application on GitHub that lets you edit PDFs on any device anywhere
- #349TheAlgorithms/Java
All Algorithms implemented in Java
- #431yuliskov/SmartTube
Browse media content with your own rules on Android TV
- #440Snailclimb/JavaGuide
Java 面试 & 后端通用面试指南，覆盖计算机基础、数据库、分布式、高并发、系统设计与 AI 应用开发
- #450skylot/jadx
Dex to Java decompiler
- #458elastic/elasticsearch
Free and Open Source, Distributed, RESTful Search Engine
- #490CyC2018/CS-Notes
:books: 技术面试必备基础知识、Leetcode、计算机操作系统、计算机网络、系统设计
- #566spring-projects/spring-boot
Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.
- #662apache/spark
Apache Spark - A unified analytics engine for large-scale data processing
- #693Anuken/Mindustry
The automation tower defense RTS
- #705xiaojieonly/Ehviewer_CN_SXJ
ehviewer，用爱发电，快乐前行
- #868dbeaver/dbeaver
Free universal database tool and SQL client
- #980macrozheng/mall
mall项目是一套电商系统，包括前台商城系统及后台管理系统，基于Spring Boot+MyBatis实现，采用Docker容器化部署。…
- #1,009GitHubDaily/GitHubDaily
坚持分享 GitHub 上高质量、有趣实用的开源技术教程、开发者工具、编程网站、技术资讯。A list cool, interesting projects of GitHub.
- #1,062semgrep/semgrep
Lightweight static analysis for many languages. Find bug variants with patterns that look like source code.
- #1,065apache/kafka
Apache Kafka - A distributed event streaming platform
- #1,097microg/GmsCore
Free implementation of Play Services
- #1,104iluwatar/java-design-patterns
Design patterns implemented in Java
- #1,169kestra-io/kestra
Orchestrate everything, everywhere. The open-source control plane for workflows across data, infrastructure, business…
- #1,234appsmithorg/appsmith
Platform to build admin panels, internal tools, and dashboards. Integrates with 25+ databases and any API.
- #1,262forthespada/CS-Books
🔥🔥超过1000本的计算机经典书籍、个人笔记资料以及本人在各平台发表文章中所涉及的资源等。书籍资源包括C/C++、Java、Python、Go语言、数据结构与算法、操作系统、后端架构、计算机系统知识、数据库、计算机网络、设计模式、前端、汇编…
- #1,434youngyangyang04/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！🔥🔥…
- #1,478airbytehq/airbyte
Open-source data movement for ELT pipelines and AI agents — from APIs, databases & files to warehouses, lakes, and AI…
- #1,511jenkinsci/jenkins
Jenkins automation server
- #1,636doocs/advanced-java
😮 Core Interview Questions & Answers For Experienced Java(Backend) Developers | 互联网 Java…
- #1,646apache/flink
Apache Flink
- #1,666kdn251/interviews
Everything you need to know to get the job.
- #1,726google/guava
Google core libraries for Java
- #1,748organicmaps/organicmaps
🍃 Organic Maps is a free Android & iOS offline maps app for more than 12M travelers, tourists, hikers, and cyclists. It…
- #1,750kunal-kushwaha/DSA-Bootcamp-Java
This repository consists of the code samples, assignments, and notes for the Java data structures & algorithms +…
- #1,813LawnchairLauncher/lawnchair
No clever tagline needed.
- #1,814microsoft/mcp-for-beginners
This open-source curriculum introduces the fundamentals of Model Context Protocol (MCP) through real-world…
- #1,847zxing/zxing
ZXing ("Zebra Crossing") barcode scanning library for Java, Android
- #1,893openjdk/jdk
JDK main-line development https://openjdk.org/projects/jdk
- #1,917conductor-oss/conductor
Conductor is an event driven agentic workflow engine providing durable and highly resilient execution engine for…
- #1,933SeleniumHQ/selenium
A browser automation framework and ecosystem.
- #1,940libgdx/libgdx
Desktop/Android/HTML5/iOS Java game development framework
- #1,961google/flatbuffers
FlatBuffers: Memory Efficient Serialization Library
- #2,005apache/dubbo
The java implementation of Apache Dubbo. An RPC and microservice framework.
- #2,055binarywang/WxJava
微信开发 Java SDK ，支持包括微信支付，开放平台，小程序，企业微信，视频号，公众号等的后端开发
- #2,110xuxueli/xxl-job
A distributed task scheduling framework.（分布式任务调度平台XXL-JOB）
- #2,134lysine-dev/okhttp
A meticulous HTTP client for the JVM, Android, and GraalVM.
- #2,137alibaba/arthas
Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas
- #2,159azl397985856/leetcode
LeetCode Solutions: A Record of My Problem Solving Journey.( leetcode题解，记录自己的leetcode解题之路。)
- #2,172doocs/leetcode
🔥LeetCode solutions in any programming language | 多种编程语言实现 LeetCode、《剑指 Offer（第 2 版）》、《程序员面试金典（第 6 版）》题解
- #2,215cryptomator/cryptomator
Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and…
- #2,311ionic-team/capacitor
Build cross-platform Native Progressive Web Apps for iOS, Android, and the Web ⚡️
- #2,327apache/rocketmq
Apache RocketMQ is a cloud native messaging and streaming platform, making it simple to build event-driven applications.
- #2,354ZCShou/GoGoGo
一个基于 Android 调试 API + 百度地图实现的虚拟定位工具，并且同时实现了一个可以自由移动的摇杆
- #2,356trinodb/trino
Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL…
- #2,402langchain4j/langchain4j
LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a…
- #2,410xkcoding/spring-boot-demo
🚀一个用来深入学习并实战 Spring Boot 的项目。
- #2,498ityouknow/spring-boot-examples
about learning Spring Boot via examples. Spring Boot 教程、技术栈示例代码，快速简单上手教程。
- #2,501opensearch-project/OpenSearch
🔎 Open source distributed and RESTful search engine.
- #2,522lysine-dev/retrofit
A type-safe HTTP client for Android and the JVM
- #2,588traccar/traccar
Open source GPS tracking platform - self-hosted or managed, 200+ device protocols
- #2,621alibaba/spring-cloud-alibaba
Spring Cloud Alibaba provides a one-stop solution for application development for the distributed solutions of Alibaba…
- #2,622ReactiveX/RxJava
RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using…
- #2,675gradle/gradle
Adaptable, fast automation for all
- #2,744xiaolincoder/CS-Base
图解计算机网络、操作系统、计算机组成、数据库，共 1000 张图 + 50 万字，破除晦涩难懂的计算机基础知识，让天下没有难懂的八股文！🚀 在线阅读：https://xiaolincoding.com
- #2,889PhilJay/MPAndroidChart
A powerful 🚀 Android chart view / graph view library, supporting line- bar- pie- radar- bubble- and candlestick charts…
- #2,917square/leakcanary
A memory leak detection library for Android.
- #2,926AobingJava/JavaFamily
【Java面试+Java学习指南】 一份涵盖大部分Java程序员所需要掌握的核心知识。
- #2,954checkstyle/checkstyle
Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. By default it…
- #2,987chinabugotech/hutool
🍬A set of tools that keep Java sweet.
- #3,056redisson/redisson
Redisson: Valkey & Redis Java Client and Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Extends Valkey and…
- #3,097itwanger/toBeBetterJavaer
一份通俗易懂、风趣幽默的Java学习指南，内容涵盖Java基础、Java并发编程、Java虚拟机、Java企业级开发、Java面试等核心知识点。学Java，就认准二哥的Java进阶之路😄
- #3,126itzg/docker-minecraft-server
Docker image that provides a Minecraft Server for Java Edition that automatically installs/upgrades versions…
- #3,164crossoverJie/JCSprout
👨🎓 Java Core Sprout : basic, concurrent, algorithm
- #3,200spring-projects/spring-ai
An Application Framework for AI Engineering
- #3,278mybatis/mybatis-3
MyBatis SQL mapper framework for Java
- #3,286alibaba/spring-ai-alibaba
Agentic AI Framework for Java Developers
- #3,311alibaba/Sentinel
A powerful flow control component enabling reliability, resilience and monitoring for microservices…
- #3,314NativeScript/NativeScript
⚡ Write Native with TypeScript ✨ Best of all worlds (TypeScript, Swift, Objective C, Kotlin, Java, Dart). Use what you…
- #3,366kekingcn/kkFileView
Universal File Online Preview Project based on Spring-Boot
- #3,372alibaba/easyexcel
快速、简洁、解决大文件内存溢出的java处理Excel工具
- #3,374jhipster/generator-jhipster
JHipster is a development platform to quickly generate, develop, & deploy modern web applications & microservice…
- #3,474mouredev/roadmap-retos-programacion
Ruta de estudio basada en ejercicios de código de la comunidad MoureDev para aprender y practicar lógica usando…
- #3,513PaperMC/Paper
The most widely used, high performance Minecraft server that aims to fix gameplay and mechanics inconsistencies
- #3,532mapeditor/tiled
Flexible level editor
- #3,536hollischuang/toBeTopJavaer
To Be Top Javaer - Java工程师成神之路
- #3,623brettwooldridge/HikariCP
光 HikariCP・A solid, high-performance, JDBC connection pool at last.
- #3,625oracle/graal
GraalVM compiles applications into native executables that start instantly, scale fast, and use fewer compute resources…
- #3,675quarkusio/quarkus
Quarkus: Supersonic Subatomic Java.
- #3,706liyupi/codefather
程序员鱼皮的编程宝典 ⭐️ 2026年最全编程学习路线图！包含Java学习路线、前端学习路线、Python学习路线、C++学习路线、算法学习路线、计算机基础学习路线、AI应用开发学习路线、AI…
- #3,708judasn/IntelliJ-IDEA-Tutorial
IntelliJ IDEA 简体中文专题教程
- #3,729antlr/antlr4
ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or…
- #3,741Grasscutters/Grasscutter
A server software reimplementation for a certain anime game.
- #3,811alibaba/fastjson
FASTJSON 2.0.x has been released, faster and more secure, recommend you upgrade.
- #3,862gyoogle/tech-interview-for-developer
👶🏻 신입 개발자 전공 지식 & 기술 면접 백과사전 📖
- #3,875prestodb/presto
The official home of the Presto distributed SQL query engine for big data
- #3,898LMAX-Exchange/disruptor
High Performance Inter-Thread Messaging Library
- #3,988apache/tomcat
Apache Tomcat
- #3,989open-android/Android
GitHub上最火的Android开源项目,所有开源项目都有详细资料和配套视频
- #4,006meta/infer
A static analyzer for Java, C, C++, and Objective-C
- #4,03000-Evan/shattered-pixel-dungeon
Shattered Pixel Dungeon is an open-source traditional roguelike dungeon crawler with randomized levels and enemies, and…
- #4,058dromara/Sa-Token
✨ 开源、免费、一站式 Java 权限认证框架，让鉴权变得简单、优雅！—— 登录认证、权限认证、分布式 Session 会话、微服务网关鉴权、SSO 单点登录、OAuth2.0 统一认证、jwt 集成、API Key 秘钥授权、API…
- #4,067apache/cassandra
Open source transactional distributed database. Linear scalability and proven fault-tolerance on commodity hardware or…
- #4,086OpenRefine/OpenRefine
OpenRefine is a free, open source power tool for working with messy data and improving it