Trending repositories

1.ashishps1 / awesome-system-design-resources

Learn System Design concepts and prepare for interviews using free resources.

• awesome
• backend
• computer-science
• distributed-systems
• high-level-design
• interview
• +4 more

2.YunaiV / ruoyi-vue-pro

🔥 官方推荐 🔥 RuoYi-Vue 全新 Pro 版本，优化重构所有功能。基于 Spring Boot + MyBatis Plus + Vue & Element 实现的后台管理系统 + 微信小程序，支持 RBAC 动态权限、数据权限、SaaS 多租户、Flowable 工作流、三方登录、支付、短信、商城、CRM、ERP、MES、IM、AI 大模型、IoT 物联网等功能。你的 ⭐️ Star ⭐️，是作者生发的动力！

• springboot
• vue
• mysql
• redis
• mybatis-plus
• redisson
• +2 more

3.jeecgboot / JeecgBoot

【低代码v2.0，一句话即可生成整个系统】企业级AI低代码平台，一键生成前后端代码甚至整个系统。 AI Skills 一句话画流程、设计表单、生成报表、大屏。内置 AI应用平台涵盖：AI聊天、知识库、流程编排、MCP插件等，兼容主流大模型。引领AI低代码「Skills 生成 → 在线配置 → 代码生成 → 手工合并->AI修改」开发模式，解决 Java 项目 90% 重复工作，提高效率又不失灵活。

• antd
• activiti
• codegenerator
• springcloud
• springboot
• low-code
• +14 more

4.YunaiV / yudao-cloud

ruoyi-vue-pro 全新 Cloud 版本，优化重构所有功能。基于 Spring Cloud Alibaba + MyBatis Plus + Vue & Element 实现的后台管理系统 + 用户小程序，支持 RBAC 动态权限、多租户、数据权限、工作流、三方登录、支付、短信、商城、CRM、ERP、MES、IM、AI 大模型、IoT 物联网等功能。你的 ⭐️ Star ⭐️，是作者生发的动力！

• dubbo
• springcloud
• springboot
• rocketmq
• zookeeper
• mysql
• +10 more

5.langchain4j / langchain4j

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
• chatgpt
• gpt
• +14 more

6.macrozheng / 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。 前台商城系统包含首页门户、商品推荐、商品搜索、商品展示、购物车、订单流程、会员中心、客户服务、帮助中心等模块。 后台管理系统包含商品管理、订单管理、会员管理、促销管理、运营管理、内容管理、统计报表、财务管理、权限管理、设置等模块。

• spring-boot
• spring-security
• mybatis
• docker
• swagger-ui
• mysql
• +10 more

7.alibaba / spring-ai-alibaba

Agentic AI Framework for Java Developers

• artificial-intelligence
• java
• spring-ai
• agentic
• context-engineering
• multi-agent
• +3 more

8.kekingcn / kkFileView

Universal File Online Preview Project based on Spring-Boot

• fileview
• kkfileview
• office-view
• fileviewer
• docx
• java
• +3 more

9.thingsboard / thingsboard

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

• visualization
• iot
• iot-platform
• mqtt
• middleware
• thingsboard
• +12 more

10.OpenAPITools / openapi-generator

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

• rest-api
• rest-client
• sdk
• generator
• restful-api
• api
• +7 more

11.conductor-oss / conductor

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
• microservice-orchestration
• orchestration-engine
• +8 more

12.macrozheng / mall-swarm

mall-swarm是一套微服务商城系统，采用了 Spring Cloud Alibaba、Spring Boot 3.5、Sa-Token、MyBatis、Elasticsearch、Docker、Kubernetes等核心技术，同时提供了基于Vue的管理后台方便快速搭建系统。mall-swarm在电商业务的基础集成了注册中心、配置中心、监控中心、网关等系统功能。

• springcloud
• springboot
• docker
• java
• mysql
• elasticsearch
• +8 more

13.apache / camel

Apache Camel is an open source integration framework with 350+ connectors. Write routes in Java, YAML, or XML. Run on Spring Boot, Quarkus, or standalone. Apache License 2.0.

• camel
• integration
• java
• microservices
• cloud-native
• data-transformation
• +10 more

14.xuxueli / xxl-job

A distributed task scheduling framework.（分布式任务调度平台XXL-JOB）

• xxl-job
• job
• quartz
• glue
• task
• schedule
• +5 more

15.microsoft / typespec

No description provided by the repository host.

• openapi3
• json-schema
• protobuf
• typespec

16.alibaba / nacos

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

• nacos
• dubbo
• kubernetes
• istio
• spring-cloud
• microservices
• +10 more

17.metersphere / metersphere

MeterSphere 是新一代的开源持续测试工具，内置 AI 助手，让软件测试工作更简单、更高效，不再成为持续交付的瓶颈。

• jmeter
• testing
• test-automation
• api-testing
• testcase
• testlink
• +5 more

18.doocs / 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

• java
• distributed-systems
• message-queue
• redis
• distributed-search-engine
• high-availability
• +14 more

19.spring-projects / spring-framework

Spring Framework

• spring
• spring-framework
• spring-mvc

20.zfile-dev / zfile

在线云盘、网盘、OneDrive、云存储、私有云、对象存储、h5ai、上传、下载

• h5ai
• clouddisk
• spring-boot
• vue
• mysql
• h2

21.kagkarlsson / db-scheduler

Persistent cluster-friendly scheduler for Java

• java
• scheduler
• task-scheduler
• job-scheduler
• jdbc
• hacktoberfest
• +2 more

22.apache / dubbo

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

• dubbo
• distributed-systems
• framework
• java
• microservices
• restful
• +5 more

23.redisson / redisson

Redisson: Valkey & Redis Java Client and Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Extends Valkey and Redis with over 60 objects and services: Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Spring, Tomcat, Scheduler, JCache API, Hibernate, RPC, local cache..

• java
• redis
• lock
• map
• queue
• executor
• +14 more

24.linlinjava / litemall

又一个小商城。litemall = Spring Boot后端 + Vue管理员前端 + 微信小程序用户前端 + Vue用户移动端

• litemall
• wechat-mini-program
• spring-boot
• mall
• wechat
• vue

25.wiremock / wiremock

A tool for mocking HTTP services

• wiremock
• json
• mocking
• stubbing
• java
• xml
• +5 more

26.amitshekhariitbhu / Fast-Android-Networking

🚀 A Complete Fast Android Networking Library that also supports HTTP/2 🚀

• http
• network
• libraries
• android
• fast
• okhttp
• +14 more

27.mock-server / mockserver-monorepo

MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP and more on a single port, with additional support for HTTP/3, message brokers, and AI/LLM APIs.

• mock-server
• proxy
• java-client
• javascript-client
• node-module
• node-client
• +9 more

28.apache / fory

A blazingly fast multi-language serialization framework for idiomatic domain objects, schema IDL, and cross-language data exchange.

• cross-language
• fast
• jit
• multiple-language
• serialization
• zero-copy
• +14 more

29.camunda / camunda

Agentic Orchestration Platform

• microservices
• orchestration-framework
• workflow-engine
• java
• bpmn
• workflow
• +1 more

30.microcks / microcks

The open source, cloud native tool for API Mocking and Testing. Microcks is a Cloud Native Computing Foundation incubating project 🚀

• api
• testing
• kubernetes
• api-testing
• event-driven
• graphql
• +14 more

31.apache / ofbiz-framework

Apache OFBiz is an open source product for the automation of enterprise processes. It includes framework components and business applications for ERP, CRM, E-Business/E-Commerce, Supply Chain Management and Manufacturing Resource Planning. OFBiz provides a foundation and starting point for reliable, secure and scalable enterprise solutions.

• geospatial
• ofbiz
• web-framework
• java
• xml
• content
• +7 more

32.karatelabs / karate

Test Automation Made Simple

• test-automation
• assertions
• testing-tools
• mock-server
• automated-testing
• webdriver
• +10 more

33.apache / shenyu

Apache ShenYu is a Java native API Gateway for service proxy, protocol conversion and API governance.

• api-gateway
• http-proxy
• dubbo-proxy
• sofa-proxy
• reactor-java
• grpc-proxy
• +1 more

34.standard-webhooks / standard-webhooks

The Standard Webhooks specification

• api
• asyncapi
• callbacks
• http
• json
• openapi
• +5 more

35.terrakube-io / terrakube

Open source IaC Automation and Collaboration Software.

• spring-boot
• elide
• terraform
• kubernetes
• terraform-registry
• terraform-enterprise
• +2 more

36.newbee-ltd / newbee-mall

🔥 🎉newbee-mall是一套电商系统，包括基础版本(Spring Boot+Thymeleaf)、前后端分离版本(Spring Boot+Vue 3+Element-Plus+Vue-Router 4+Pinia+Vant 4) 、秒杀版本、Go语言版本、微服务版本(Spring Cloud Alibaba+Nacos+Sentinel+Seata+Spring Cloud Gateway+OpenFeign+ELK)。 前台商城系统包含首页门户、商品分类、新品上线、首页轮播、商品推荐、商品搜索、商品展示、购物车、订单结算、订单流程、个人订单管理、会员中心、帮助中心等模块。 后台管理系统包含数据面板、轮播图管理、商品管理、订单管理、会员管理、分类管理、设置等模块。

• spring-boot
• springboot
• mybatis
• mall
• shop
• springboot2
• +14 more

37.spring-cloud / spring-cloud-gateway

An API Gateway built on Spring Framework and Spring Boot providing routing and more.

• java
• spring
• spring-boot
• spring-cloud
• microservices
• proxy
• +3 more

38.discord-jda / JDA

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

• discord
• rest-api
• websocket
• java
• rest
• javadoc
• +6 more

39.gravitee-io / gravitee-api-management

Gravitee.io - OpenSource API Management

• api
• api-management
• gateway
• java
• vertx
• api-gateway
• +1 more

40.alibaba / Sentinel

A powerful flow control component enabling reliability, resilience and monitoring for microservices. (面向云原生微服务的高可用流控防护组件)

• alibaba
• java
• microservice
• circuit-breaker
• rate-limiting
• reliability
• +3 more

41.seaswalker / spring-analysis

Spring源码阅读

• spring
• notes
• source-code-analysis

42.apereo / cas

Apereo CAS - Identity & Single Sign On for all earthlings and beyond.

• sso-authentication
• authentication
• authorization
• java
• websso
• saml2
• +14 more

43.springdoc / springdoc-openapi

Library for OpenAPI 3 with spring-boot

• openapi3
• spring-boot
• springdoc-openapi
• swagger-ui
• swagger-documentation
• openapi
• +14 more

44.aklivity / zilla

🦎 A lightweight, streaming-native, multi-protocol gateway for AI, APIs, and real-time data. Route LLM requests across providers, govern MCP tools, and connect Kafka, MQTT, and HTTP through one high-performance engine with shared security and observability.

• kafka
• rest
• server-sent-events
• streaming-api
• grpc
• mqtt
• +9 more

45.wso2 / product-apim

Welcome to the WSO2 API Manager source code! For info on working with the WSO2 API Manager repository and contributing code, click the link below.

• api-gateway
• gateway
• apis
• api-management
• rest
• synapse
• +1 more

46.apache / streampipes

Apache StreamPipes - A self-service (Industrial) IoT toolbox to enable non-technical users to connect, analyze and explore IoT data streams.

• iot
• analytics
• edge
• stream-processing
• iiot
• self-service
• +6 more

47.Atsumeru-xyz / Atsumeru

Free self-hosted mangas/comics/light novels media server

• api
• comicinfo
• comics
• java
• light-novels
• manga
• +3 more

48.apolloconfig / apollo

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

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

49.heibaiying / BigData-Notes

大数据入门指南 :star:

• hadoop
• hdfs
• yarn
• mapreduce
• hive
• spark
• +11 more

50.codecentric / spring-boot-admin

Admin UI for administration of spring boot applications

• spring-boot-admin
• spring-cloud
• spring-boot
• java
• spring

51.ddd-by-examples / library

A comprehensive Domain-Driven Design example with problem space strategic analysis and various tactical patterns.

• domain-driven-design
• ddd
• ddd-architecture
• c4
• hexagonal-architecture
• ports-and-adapters
• +9 more

52.line / armeria

Your go-to microservice framework for any situation, from the creator of Netty et al. You can build any type of microservice leveraging your favorite technologies, including gRPC, Thrift, Kotlin, Retrofit, Reactive Streams, Spring Boot and Dropwizard.

• http
• http2
• http-server
• http-client
• thrift
• thrift-server
• +14 more

53.s4kibs4mi / java-developer-roadmap

Roadmap to becoming a Java developer in 2026

• java
• jee
• roadmap
• guidelines
• software-architecture
• software-development
• +2 more

54.apache / linkis

Apache Linkis builds a computation middleware layer to facilitate connection, governance and orchestration between the upper applications and the underlying data engines.

• sql
• spark
• hive
• pyspark
• livy
• linkis
• +14 more

55.apache / hugegraph

A graph database that supports more than 100+ billion data, high performance and scalability (Include OLTP Engine & REST-API & Backends)

• database
• graph-database
• graph
• gremlin
• big-data
• graphdb

56.pac4j / pac4j

Security engine for Java (authentication, authorization, multi frameworks): OpenID Connect, SAML2, CAS, OAuth, LDAP, JWT...

• java
• security
• authentication
• authorization
• cas
• oauth
• +14 more

57.zalando / logbook

An extensible Java library for HTTP request and response logging

• java
• http-logs
• spring-boot-starter
• plugin-extension
• logging
• logs
• +8 more

58.apache / solr

Apache Solr open-source search software

• lucene
• solr
• search
• nosql
• java
• backend
• +2 more

59.spring-cloud / spring-cloud-stream

Framework for building Event-Driven Microservices

• microservices
• messaging
• event-driven-microservices
• stream-processing
• reactive
• cloud-native

60.apple / servicetalk

A networking framework that evolves with your application

• java
• reactive
• reactive-streams
• microservices
• framework
• http
• +4 more

61.Kaleert / nyagram

Modern & Powerful Telegram-bot-api framework/library with custom features!

• bot-framework
• java
• java17
• java21
• spring
• spring-boot
• +4 more

62.grpc / grpc-java

The Java gRPC implementation. HTTP/2 based RPC

• grpc
• java
• microservices
• proto
• rpc

63.Activiti / Activiti

Activiti is a light-weight workflow and Business Process Management (BPM) Platform targeted at business people, developers and system admins. Its core is a super-fast and rock-solid BPMN 2 process engine for Java. It's open-source and distributed under the Apache license. Activiti runs in any Java application, on a server, on a cluster or in the cloud. It integrates perfectly with Spring, it is extremely lightweight and based on simple concepts.

• java
• bpm
• spring
• cloud
• microservices
• business-process
• +4 more

64.OpenFeign / feign

Feign makes writing java http clients easier

• java
• http-client
• jax-rs
• okhttp3
• slf4j
• interface

65.NanoHttpd / nanohttpd

Tiny, easily embeddable HTTP server in Java.

66.AsyncHttpClient / async-http-client

Asynchronous, non-blocking HTTP & WebSocket client for the JVM

• netty
• async
• java
• asynchttpclient
• ahc
• http-client

67.graphql-java / graphql-java

GraphQL Java implementation

• graphql
• graphql-java
• java

68.micrometer-metrics / micrometer

An application observability facade for the most popular observability tools. Think SLF4J, but for observability.

• java
• monitoring
• cloud-native
• microservices
• metrics
• observability

69.http-kit / http-kit

Simple, high-performance event-driven HTTP client+server for Clojure

• clojure
• async
• websockets
• http-server
• http-client

70.confluentinc / schema-registry

Confluent Schema Registry for Kafka

• schema-registry
• kafka
• schema
• schemas
• avro
• avro-schema
• +6 more

71.speedment / speedment

Speedment is a Stream ORM Java Toolkit and Runtime

• java
• database
• stream
• orm
• code-generator
• javafx
• +3 more

72.Netflix / genie

Distributed Big Data Orchestration Service

• big-data
• bigdata
• orchestration
• configuration
• configuration-management
• java
• +7 more

73.spring-projects / spring-data-mongodb

Provides support to increase developer productivity in Java when using MongoDB. Uses familiar Spring concepts such as a template classes for core API usage and lightweight repository style data access.

• ddd
• java
• mongodb
• spring
• spring-data
• framework

74.sirixdb / sirix

SirixDB is an an embeddable, bitemporal, append-only database system and event store, storing immutable lightweight snapshots. It keeps the full history of each resource. Every commit stores a space-efficient snapshot through structural sharing. It is log-structured and never overwrites data. SirixDB uses a novel page-level versioning approach.

• xquery
• java
• temporal-data
• storage
• snapshot
• comparison
• +14 more

75.OpenAPITools / openapi-diff

Utility for comparing two OpenAPI specifications.

• openapi
• openapi3
• swagger
• diff
• api
• openapi-specification
• +1 more

76.dromara / jquick-curl

jquick‑curl: Java library to run raw curl commands, support copy‑paste curl from Postman/Apifox/Browser DevTools, no need to write HTTP client code.

• antlr4
• copy-paste
• curl
• curl-parser
• dromara
• http-client
• +2 more

77.eclipse-vertx / vertx-sql-client

High performance reactive SQL client written in Java

• vertx
• postgres
• pg
• async
• netty
• performance
• +5 more

78.reactiverse / es4x

🚀 fast JavaScript 4 Eclipse Vert.x

• vertx
• language-support
• javascript
• typescript
• typescript-definitions
• hacktoberfest2021
• +3 more

79.spring-projects / spring-data-neo4j

Provide support to increase developer productivity in Java when using Neo4j. Uses familiar Spring concepts such as a template classes for core API usage and lightweight repository style data access.

• ddd
• java
• neo4j
• spring
• spring-data
• framework

80.nats-io / nats.java

Java client for NATS

• nats
• java
• client
• messaging
• messaging-library
• middleware

81.xnbox / DeepfakeHTTP

DeepfakeHTTP is a web server that uses HTTP dumps as a source for responses.

• http-server
• dump
• dummy
• testing
• testing-tools
• test-automation
• +14 more

82.OpenIdentityPlatform / OpenDJ

OpenDJ is an open-source LDAP directory server written in Java. It provides robust, scalable, and secure directory services for identity management, access control, and authentication in enterprise environments. OpenDJ supports LDAPv3 standard, replication, REST APIs, and high-performance

• ldap-server
• ldap
• opendj
• rest
• rest2ldap
• opends
• +6 more

83.wso2 / product-ei

An open source, a high-performance hybrid integration platform that allows developers quick integration with any application, data, or system.

• integration
• middleware
• wso2
• esb
• messaging
• business-process
• +5 more

84.littlehorse-enterprises / littlehorse

LittleHorse Server: Business-as-Code Platform for Microservices, Workflows, and Agents

• microservices
• workflow-engine
• orchestration
• apache-kafka
• event-driven-architecture
• kafka-streams
• +1 more

85.jstachio / jstachio

Java type safe statically compiled mustache

• annotation-processor
• java
• mustache
• template-engine
• type-safe
• dropwizard
• +2 more

86.jmapper-framework / jmapper-core

Elegance, high performance and robustness all in one java bean mapper

• annotations
• xml
• java
• jmapper
• mapper
• mapping
• +2 more

87.dokimos-dev / dokimos

LLM and agent evaluation for Java & Kotlin. Runs in JUnit and CI. Spring AI, LangChain4j, Koog, Embabel, and any LLM client.

• agent-evaluation
• evaluation-framework
• evaluation-metrics
• java
• langchain4j
• llm-evaluation
• +14 more

88.tdilber / spring-data-dynamic-query

Unified Object base Dynamic Query for Sql, MongoDb, Elasticsearch with Auto Join, Auto Projection and so many advanced feature.

• jpa
• jpa-criteria-api
• jpa-hibernate
• spring-data-jpa
• java
• spring-boot
• +3 more

89.bariskokulu / CRUDGen

Compile-time annotation processor for Spring Boot. Generates predictable REST APIs, DTOs, JSON Patch endpoints, and N+1 safe JPA repositories without runtime reflection.

• annotation-processor
• boilerplate
• code-generator
• dto
• java
• jpa
• +3 more