Repository Index

Design patterns implemented in Java

• java
• principles
• design-patterns
• awesome-list

All Algorithms implemented in Java

• java
• algorithms
• algorithms-datastructures
• algorithm-challenges

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

• dubbo
• distributed-systems
• framework
• java

Translated🔥 Officially Recommended 🔥 A brand-new Pro version of RuoYi-Vue, with all features optimized and refactored. A back-office management system + WeChat Mini Program built on Spring Boot + MyBatis Plus + Vue & Element, supporting RBAC dynamic permissions, data permissions, SaaS multi-tenancy, Flowable workflow, third-party login, payment, SMS, mall, CRM, ERP, MES, IM, AI large models, IoT (Internet of Things), and more. Your ⭐️ Star ⭐️ is the author's motivation for hair growth!

• springboot
• vue
• mysql
• redis

TranslatedHalo is a powerful and easy-to-use open-source website building tool. From personal blogs and knowledge bases to corporate websites and online stores, Halo can help you build them with ease, meeting your diverse website building needs in one stop.

• halo
• cms
• halocms
• content-management-system

Open Source Identity and Access Management For Modern Applications and Services

• keycloak
• oidc
• saml

an easy-to-use dynamic service discovery, configuration and service management platform for building AI cloud native applications.

• nacos
• dubbo
• kubernetes
• istio

Conductor is an event driven agentic workflow engine providing durable and highly resilient execution engine for applications and AI Agents

• distributed-systems
• grpc
• java
• javascript

Apollo is a reliable configuration management system suitable for microservice configuration management scenarios.

• configuration-management
• spring-boot
• config-management
• microservices

Chat2DB is a free, cross-platform, local-first database client and SQL workspace for developers, DBAs, analysts, and data teams. Connect to 40+ databases, manage data, edit and run SQL, and use your own AI model to generate, explain, and optimize queries. Available on desktop, web, Docker, and CLI, with MCP support.

• ai
• mysql
• oracle
• postgresql

APM, Application Performance Monitoring System

• skywalking
• observability
• apm
• service-mesh

FizzBuzz Enterprise Edition is a no-nonsense implementation of FizzBuzz made by serious businessmen for serious business purposes.

All-in-one IoT Platform - Device management, data collection, processing and visualization.

• visualization
• iot
• iot-platform
• mqtt

Translatedeladmin JPA version: A back-end management system with separated front end and back end, based on Spring Boot 2.7.18, JPA, Spring Security, Redis, and Vue. The project is developed in separate modules, uses RBAC for permission control, supports data dictionary and data permission management, supports one-click generation of front-end and back-end code, and supports dynamic routing

• spring-boot
• spring-security
• jpa
• redis

TranslatedA brand-new Cloud version of ruoyi-vue-pro, with all features optimized and refactored. A back-office management system + user mini program built on Spring Cloud Alibaba + MyBatis Plus + Vue & Element, supporting RBAC dynamic permissions, multi-tenancy, data permissions, workflow, third-party login, payment, SMS, mall, CRM, ERP, MES, IM, AI large models, IoT (Internet of Things), and more. Your ⭐️ Star ⭐️ is the motivation for the author to grow hair!

• dubbo
• springcloud
• springboot
• rocketmq

Implementation of ImageView for Android that supports zooming, by various touch gestures.

QuestDB is a high performance, open-source, time-series database

• time-series
• low-latency
• database
• sql

A server software reimplementation for a certain anime game.

• java
• kcp
• server
• private-server

Open source alternative to Auth0 / Firebase Auth / AWS Cognito

• authentication
• session-management
• login
• supertokens

Free implementation of Play Services

• java
• android
• microg
• google-cloud-messaging

APM, (Application Performance Management) tool for large-scale distributed systems.

• apm
• monitoring
• performance
• agent

LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and vector stores, and makes implementing tool calling (including MCP support), agents and RAG easy. It integrates seamlessly with enterprise Java frameworks like Quarkus and Spring Boot.

• huggingface
• java
• langchain
• openai

Apache ZooKeeper

• zookeeper
• database
• hacktoberfest
• java

Open-Source Web UI for Apache Kafka Management

• kafka-ui
• kafka-brokers
• kafka
• kafka-streams