1.Snailclimb / 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
+5,083 stars
from 154,285 · score 8.53
Trending repositories
Ranked by Attention Score: stars gained over the last 180 complete days
1–100 of 325 by Attention Score · May 7, 2026 – Nov 2, 2026 (UTC)
2.kestra-io / kestra
Orchestrate everything, everywhere. The open-source control plane for workflows across data, infrastructure, business processes and AI agents. Declarative YAML, event-driven, any language, Git-versioned, scalable to millions of executions.
+3,664 stars
from 26,443 · score 8.21
+3,420 stars
from 48,027 · score 8.14
4.dbeaver / dbeaver
Free universal database tool and SQL client
+2,766 stars
from 49,499 · score 7.93
5.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。
+2,222 stars
from 82,777 · score 7.71
6.microg / GmsCore
Free implementation of Play Services
+2,207 stars
from 12,948 · score 7.70
7.apache / kafka
Apache Kafka - A distributed event streaming platform
+1,821 stars
from 32,288 · score 7.51
8.spring-projects / spring-boot
Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.
+1,771 stars
from 79,953 · score 7.48
9.alibaba / spring-ai-alibaba
Agentic AI Framework for Java Developers
+1,737 stars
from 9,353 · score 7.46
10.appsmithorg / appsmith
Platform to build admin panels, internal tools, and dashboards. Integrates with 25+ databases and any API.
+1,682 stars
from 39,468 · score 7.43
11.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.
+1,608 stars
from 11,730 · score 7.38
12.conductor-oss / conductor
Conductor is an event driven agentic workflow engine providing durable and highly resilient execution engine for applications and AI Agents
+1,485 stars
from 30,915 · score 7.30
13.apache / spark
Apache Spark - A unified analytics engine for large-scale data processing
+1,390 stars
from 42,992 · score 7.24
14.opensearch-project / OpenSearch
🔎 Open source distributed and RESTful search engine.
+1,163 stars
from 12,783 · score 7.06
15.itzg / docker-minecraft-server
Docker image that provides a Minecraft Server for Java Edition that automatically installs/upgrades versions, modloaders, modpacks and more at startup
+1,019 stars
from 13,485 · score 6.93
16.google / flatbuffers
FlatBuffers: Memory Efficient Serialization Library
+849 stars
from 25,752 · score 6.75
17.SeleniumHQ / selenium
A browser automation framework and ecosystem.
+793 stars
from 33,790 · score 6.68
+757 stars
from 51,158 · score 6.63
19.xpipe-io / xpipe
Access your entire server infrastructure from your local desktop
+747 stars
from 13,895 · score 6.62
20.trinodb / trino
Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)
+679 stars
from 12,711 · score 6.52
21.binarywang / 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
+611 stars
from 32,563 · score 6.42
+606 stars
from 25,834 · score 6.41
23.libgdx / libgdx
Desktop/Android/HTML5/iOS Java game development framework
+600 stars
from 24,905 · score 6.40
24.alibaba / arthas
Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas
+520 stars
from 37,080 · score 6.26
25.gradle / gradle
Adaptable, fast automation for all
+493 stars
from 18,414 · score 6.20
26.flyway / flyway
Flyway by Redgate • Database Migrations Made Easy.
+479 stars
from 9,702 · score 6.17
27.dromara / 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 参数签名
+459 stars
from 18,649 · score 6.13
28.apache / cassandra
Open source transactional distributed database. Linear scalability and proven fault-tolerance on commodity hardware or cloud infrastructure without compromising performance.
+454 stars
from 9,677 · score 6.12
29.flowable / flowable-engine
A compact and highly efficient workflow and Business Process Management (BPM) platform for developers, system admins and business users.
+445 stars
from 9,187 · score 6.10
30.quarkusio / quarkus
Quarkus: Supersonic Subatomic Java.
+434 stars
from 15,540 · score 6.08
31.zxing / zxing
ZXing ("Zebra Crossing") barcode scanning library for Java, Android
+399 stars
from 33,782 · score 5.99
32.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。
+372 stars
from 12,823 · score 5.92
33.lysine-dev / okhttp
A meticulous HTTP client for the JVM, Android, and GraalVM.
+371 stars
from 46,737 · score 5.92
34.aeron-io / aeron
Efficient reliable UDP unicast, UDP multicast, and IPC message transport
+369 stars
from 8,571 · score 5.91
35.graphhopper / graphhopper
Open source routing engine for OpenStreetMap. Use it as Java library or standalone web server.
+357 stars
from 6,393 · score 5.88
36.apache / rocketmq
Apache RocketMQ is a cloud native messaging and streaming platform, making it simple to build event-driven applications.
+342 stars
from 22,304 · score 5.84
37.Vineflower / vineflower
Modern Java decompiler aiming to be as accurate as possible, with an emphasis on output quality. Fork of the Fernflower decompiler.
+340 stars
from 2,104 · score 5.83
38.apple / pkl
A configuration as code language with rich validation and tooling.
+307 stars
from 11,248 · score 5.73
39.apache / dubbo
The java implementation of Apache Dubbo. An RPC and microservice framework.
+295 stars
from 41,286 · score 5.69
40.cadence-workflow / cadence
Cadence is a distributed, scalable, durable, and highly available orchestration engine to execute asynchronous long-running business logic in a scalable and resilient way.
+295 stars
from 9,239 · score 5.69
41.apache / fory
A blazingly fast multi-language serialization framework for idiomatic domain objects, schema IDL, and cross-language data exchange.
+291 stars
from 4,286 · score 5.68
42.alibaba / spring-cloud-alibaba
Spring Cloud Alibaba provides a one-stop solution for application development for the distributed solutions of Alibaba middleware.
+267 stars
from 28,897 · score 5.59
43.apache / jmeter
Apache JMeter open-source load testing tool for analyzing and measuring the performance of a variety of services
+267 stars
from 9,316 · score 5.59
44.brettwooldridge / HikariCP
光 HikariCP・A solid, high-performance, JDBC connection pool at last.
+263 stars
from 20,982 · score 5.58
45.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..
+259 stars
from 24,166 · score 5.56
46.lysine-dev / retrofit
A type-safe HTTP client for Android and the JVM
+246 stars
from 43,694 · score 5.51
47.LMAX-Exchange / disruptor
High Performance Inter-Thread Messaging Library
+243 stars
from 18,248 · score 5.50
48.glideapps / quicktype
Generate types and converters from JSON, Schema, and GraphQL
+240 stars
from 13,665 · score 5.48
+240 stars
from 6,044 · score 5.48
50.apache / guacamole-server
The Apache Guacamole proxy daemon (guacd), C API (libguac), and protocol support.
+238 stars
from 3,794 · score 5.48
51.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.
+227 stars
from 6,164 · score 5.43
52.wiremock / wiremock
A tool for mocking HTTP services
+218 stars
from 7,197 · score 5.39
53.square / leakcanary
A memory leak detection library for Android.
+189 stars
from 29,813 · score 5.25
54.jhipster / generator-jhipster
JHipster is a development platform to quickly generate, develop, & deploy modern web applications & microservice architectures.
+188 stars
from 22,275 · score 5.24
55.JetBrains / fernflower
Decompiler from Java bytecode to Java, used in IntelliJ IDEA.
+188 stars
from 4,245 · score 5.24
56.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)
+186 stars
from 22,964 · score 5.23
57.apache / beam
Apache Beam is a unified programming model for Batch and Streaming data processing.
+175 stars
from 8,529 · score 5.17
58.jwtk / jjwt
Java JWT: JSON Web Token for Java and Android
+163 stars
from 10,976 · score 5.10
59.mybatis / mybatis-3
MyBatis SQL mapper framework for Java
+153 stars
from 20,284 · score 5.04
60.fuzhengwei / CodeGuide
:books: 本代码库是作者小傅哥多年从事一线互联网 Java 开发的学习历程技术汇总，旨在为大家提供一个清晰详细的学习教程，侧重点更倾向编写Java核心内容。如果本仓库能为您提供帮助，请给予支持(关注、点赞、分享)！
+153 stars
from 11,773 · score 5.04
61.prestodb / presto
The official home of the Presto distributed SQL query engine for big data
+151 stars
from 16,614 · score 5.02
62.PhilJay / 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.
+149 stars
from 38,038 · score 5.01
63.apache / zookeeper
Apache ZooKeeper
+149 stars
from 12,677 · score 5.01
64.infinilabs / analysis-ik
🚌 The IK Analysis plugin integrates Lucene IK analyzer into Elasticsearch and OpenSearch, support customized dictionary.
+148 stars
from 17,368 · score 5.00
65.Athou / commafeed
Google Reader inspired self-hosted personal RSS reader.
+136 stars
from 3,504 · score 4.92
66.palantir / palantir-java-format
A modern, lambda-friendly, 120 character Java formatter.
+134 stars
from 788 · score 4.91
67.google / error-prone
Catch common Java mistakes as compile-time errors
+133 stars
from 7,133 · score 4.90
68.kagkarlsson / db-scheduler
Persistent cluster-friendly scheduler for Java
+131 stars
from 1,545 · score 4.88
69.GoogleContainerTools / jib
🏗 Build container images for your Java applications.
+130 stars
from 14,322 · score 4.88
70.awsdocs / aws-doc-sdk-examples
Welcome to the AWS Code Examples Repository. This repo contains code examples used in the AWS documentation, AWS SDK Developer Guides, and more. For more information, see the Readme.md file below.
+127 stars
from 10,342 · score 4.85
71.apereo / cas
Apereo CAS - Identity & Single Sign On for all earthlings and beyond.
+123 stars
from 11,269 · score 4.82
72.apache / netbeans
Apache NetBeans
+123 stars
from 3,022 · score 4.82
73.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.
+121 stars
from 1,027 · score 4.80
74.grpc / grpc-java
The Java gRPC implementation. HTTP/2 based RPC
+120 stars
from 11,954 · score 4.80
75.hapifhir / hapi-fhir
🔥 HAPI FHIR - Java API for HL7 FHIR Clients and Servers
+120 stars
from 2,304 · score 4.80
76.konsoletyper / teavm
Compiles Java bytecode to JavaScript, WebAssembly and C
+119 stars
from 3,024 · score 4.79
77.apache / incubator-kie
Apache KIE (Knowledge Is Everything) is the home of Drools, OptaPlanner, jBPM, and Kogito.
+118 stars
from 6,222 · score 4.78
78.ReactiveX / RxJava
RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.
+117 stars
from 48,040 · score 4.77
79.remkop / picocli
Picocli is a modern framework for building powerful, user-friendly, GraalVM-enabled command line apps with ease. It supports colors, autocompletion, subcommands, and more. In 1 source file so apps can include as source & avoid adding a dependency. Written in Java, usable from Groovy, Kotlin, Scala, etc.
+116 stars
from 5,341 · score 4.76
80.deeplearning4j / deeplearning4j
Suite of tools for deploying and training deep learning models using the JVM. Highlights include model import for keras, tensorflow, and onnx/pytorch, a modular and tiny c++ library for running math code and a java based math library on top of the core c++ library. Also includes samediff: a pytorch/tensorflow like library for running deep learn...
+110 stars
from 14,163 · score 4.71
81.RoaringBitmap / RoaringBitmap
A better compressed bitset in Java: used by Apache Spark, Netflix Atlas, Apache Pinot, Tablesaw, and many others
+109 stars
from 3,846 · score 4.70
82.apache / sedona
A cluster computing framework for processing large-scale geospatial data
+106 stars
from 2,320 · score 4.67
83.codecentric / spring-boot-admin
Admin UI for administration of spring boot applications
+105 stars
from 12,748 · score 4.66
84.OpenHFT / Chronicle-Queue
Micro second messaging that stores everything to disk
+103 stars
from 3,723 · score 4.64
85.microsoft / playwright-java
Java version of the Playwright testing and automation library
+102 stars
from 1,464 · score 4.63
86.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.
+100 stars
from 10,451 · score 4.62
87.alibaba / easyexcelArchived
快速、简洁、解决大文件内存溢出的java处理Excel工具
+98 stars
from 33,468 · score 4.60
88.h2oai / h2o-3
H2O is an Open Source, Distributed, Fast & Scalable Machine Learning Platform: Deep Learning, Gradient Boosting (GBM) & XGBoost, Random Forest, Generalized Linear Modeling (GLM with Elastic Net), K-Means, PCA, Generalized Additive Models (GAM), RuleFit, Support Vector Machine (SVM), Stacked Ensembles, Automatic Machine Learning (AutoML), etc.
+98 stars
from 7,422 · score 4.60
89.apache / solr
Apache Solr open-source search software
+98 stars
from 1,595 · score 4.60
90.aeron-io / simple-binary-encoding
Simple Binary Encoding (SBE) - High Performance Message Codec
+95 stars
from 3,428 · score 4.56
91.gatling / gatling
Modern Load Testing as Code
+94 stars
from 6,861 · score 4.55
92.micrometer-metrics / micrometer
An application observability facade for the most popular observability tools. Think SLF4J, but for observability.
+94 stars
from 4,815 · score 4.55
93.discord-jda / JDA
Java wrapper for the popular chat & VOIP service: Discord https://discord.com
+93 stars
from 4,606 · score 4.54
94.aeron-io / agrona
High Performance data structures and utility methods for Java
+92 stars
from 3,173 · score 4.53
95.minekube / gate
Build efficient Bedrock & Java Minecraft networks with multi-version support. Powers global Connect network at production scale. Runs with 10MB.
+86 stars
from 1,002 · score 4.47
96.googleapis / google-cloud-java
Google Cloud Client Library for Java
+81 stars
from 2,025 · score 4.41
97.projectnessie / nessie
Nessie: Transactional Catalog for Data Lakes with Git-like semantics
+81 stars
from 1,445 · score 4.41
98.dianping / cat
CAT 作为服务端项目基础组件，提供了 Java, C/C++, Node.js, Python, Go 等多语言客户端，已经在美团点评的基础架构中间件框架（MVC框架，RPC框架，数据库框架，缓存框架等，消息队列，配置系统等）深度集成，为美团点评各业务线提供系统丰富的性能指标、健康状况、实时告警等。
+80 stars
from 18,856 · score 4.39
99.Wisser / Jailer
Database Subsetting and Relational Data Browsing Tool.
+77 stars
from 3,139 · score 4.36
100.JCTools / JCTools
No description provided by the repository host.
+76 stars
from 3,808 · score 4.34