+175 stars
from 51,272 · score 5.17
Trending repositories
Ranked by Attention Score: stars gained over the last 7 complete days
1–100 of 142 by Attention Score · Oct 27, 2026 – Nov 2, 2026 (UTC)
2.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
+119 stars
from 159,249 · score 4.79
3.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.
+110 stars
from 29,997 · score 4.71
4.microg / GmsCore
Free implementation of Play Services
+84 stars
from 15,071 · score 4.44
5.apache / spark
Apache Spark - A unified analytics engine for large-scale data processing
+69 stars
from 44,313 · score 4.25
6.dbeaver / dbeaver
Free universal database tool and SQL client
+67 stars
from 52,198 · score 4.22
7.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.
+43 stars
from 13,295 · score 3.78
8.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。
+42 stars
from 84,957 · score 3.76
9.opensearch-project / OpenSearch
🔎 Open source distributed and RESTful search engine.
+41 stars
from 13,905 · score 3.74
10.libgdx / libgdx
Desktop/Android/HTML5/iOS Java game development framework
+35 stars
from 25,470 · score 3.58
11.appsmithorg / appsmith
Platform to build admin panels, internal tools, and dashboards. Integrates with 25+ databases and any API.
+31 stars
from 41,119 · score 3.47
12.alibaba / spring-ai-alibaba
Agentic AI Framework for Java Developers
+30 stars
from 11,060 · score 3.43
13.xpipe-io / xpipe
Access your entire server infrastructure from your local desktop
+26 stars
from 14,616 · score 3.30
14.trinodb / trino
Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)
+25 stars
from 13,365 · score 3.26
15.google / flatbuffers
FlatBuffers: Memory Efficient Serialization Library
+22 stars
from 26,579 · score 3.14
16.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
+20 stars
from 14,484 · score 3.04
17.conductor-oss / conductor
Conductor is an event driven agentic workflow engine providing durable and highly resilient execution engine for applications and AI Agents
+16 stars
from 32,384 · score 2.83
+16 stars
from 26,424 · score 2.83
19.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.
+15 stars
from 9,519 · score 2.77
20.alibaba / arthas
Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas
+14 stars
from 37,586 · score 2.71
21.SeleniumHQ / selenium
A browser automation framework and ecosystem.
+14 stars
from 34,569 · score 2.71
22.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。
+14 stars
from 13,181 · score 2.71
23.flyway / flyway
Flyway by Redgate • Database Migrations Made Easy.
+14 stars
from 10,167 · score 2.71
24.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.
+14 stars
from 5,443 · score 2.71
25.Vineflower / vineflower
Modern Java decompiler aiming to be as accurate as possible, with an emphasis on output quality. Fork of the Fernflower decompiler.
+14 stars
from 2,430 · score 2.71
26.lysine-dev / okhttp
A meticulous HTTP client for the JVM, Android, and GraalVM.
+13 stars
from 47,095 · score 2.64
27.apache / cassandra
Open source transactional distributed database. Linear scalability and proven fault-tolerance on commodity hardware or cloud infrastructure without compromising performance.
+13 stars
from 10,118 · score 2.64
28.flowable / flowable-engine
A compact and highly efficient workflow and Business Process Management (BPM) platform for developers, system admins and business users.
+13 stars
from 9,619 · score 2.64
29.quarkusio / quarkus
Quarkus: Supersonic Subatomic Java.
+12 stars
from 15,962 · score 2.56
30.apache / beam
Apache Beam is a unified programming model for Batch and Streaming data processing.
+12 stars
from 8,692 · score 2.56
31.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.
+12 stars
from 6,379 · score 2.56
32.apache / guacamole-server
The Apache Guacamole proxy daemon (guacd), C API (libguac), and protocol support.
+12 stars
from 4,020 · score 2.56
33.gradle / gradle
Adaptable, fast automation for all
+11 stars
from 18,896 · score 2.48
34.glideapps / quicktype
Generate types and converters from JSON, Schema, and GraphQL
+10 stars
from 13,895 · score 2.40
35.apache / jmeter
Apache JMeter open-source load testing tool for analyzing and measuring the performance of a variety of services
+9 stars
from 9,574 · score 2.30
36.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
+8 stars
from 33,166 · score 2.20
37.graphhopper / graphhopper
Open source routing engine for OpenStreetMap. Use it as Java library or standalone web server.
+7 stars
from 6,743 · score 2.08
+7 stars
from 6,277 · score 2.08
39.kagkarlsson / db-scheduler
Persistent cluster-friendly scheduler for Java
+7 stars
from 1,669 · score 2.08
40.minekube / gate
Build efficient Bedrock & Java Minecraft networks with multi-version support. Powers global Connect network at production scale. Runs with 10MB.
+7 stars
from 1,081 · score 2.08
41.apache / dubbo
The java implementation of Apache Dubbo. An RPC and microservice framework.
+6 stars
from 41,575 · score 1.95
42.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..
+6 stars
from 24,419 · score 1.95
43.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
+6 stars
from 19,102 · score 1.95
44.wiremock / wiremock
A tool for mocking HTTP services
+6 stars
from 7,409 · score 1.95
45.apache / fory
A blazingly fast multi-language serialization framework for idiomatic domain objects, schema IDL, and cross-language data exchange.
+6 stars
from 4,571 · score 1.95
46.Athou / commafeed
Google Reader inspired self-hosted personal RSS reader.
+6 stars
from 3,634 · score 1.95
47.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.
+6 stars
from 1,142 · score 1.95
48.apache / zookeeper
Apache ZooKeeper
+5 stars
from 12,821 · score 1.79
49.aeron-io / aeron
Efficient reliable UDP unicast, UDP multicast, and IPC message transport
+5 stars
from 8,935 · score 1.79
50.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.
+5 stars
from 7,515 · score 1.79
51.google / error-prone
Catch common Java mistakes as compile-time errors
+5 stars
from 7,261 · score 1.79
52.hapifhir / hapi-fhir
🔥 HAPI FHIR - Java API for HL7 FHIR Clients and Servers
+5 stars
from 2,419 · score 1.79
53.apple / pkl
A configuration as code language with rich validation and tooling.
+4 stars
from 11,551 · score 1.61
54.spring-cloud / spring-cloud-gateway
An API Gateway built on Spring Framework and Spring Boot providing routing and more.
+4 stars
from 4,916 · score 1.61
55.discord-jda / JDA
Java wrapper for the popular chat & VOIP service: Discord https://discord.com
+4 stars
from 4,695 · score 1.61
56.JetBrains / fernflower
Decompiler from Java bytecode to Java, used in IntelliJ IDEA.
+4 stars
from 4,429 · score 1.61
57.JCTools / JCTools
No description provided by the repository host.
+4 stars
from 3,880 · score 1.61
58.gravitee-io / gravitee-api-management
Gravitee.io - OpenSource API Management
+4 stars
from 462 · score 1.61
59.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)
+3 stars
from 23,147 · score 1.39
60.apache / rocketmq
Apache RocketMQ is a cloud native messaging and streaming platform, making it simple to build event-driven applications.
+3 stars
from 22,643 · score 1.39
61.prestodb / presto
The official home of the Presto distributed SQL query engine for big data
+3 stars
from 16,762 · score 1.39
62.apereo / cas
Apereo CAS - Identity & Single Sign On for all earthlings and beyond.
+3 stars
from 11,389 · score 1.39
63.JSQLParser / JSqlParser
JSqlParser parses an SQL statement and translate it into a hierarchy of Java classes. The generated hierarchy can be navigated using the Visitor Pattern
+3 stars
from 5,967 · score 1.39
64.failsafe-lib / failsafe
Fault tolerance and resilience patterns for the JVM
+3 stars
from 4,317 · score 1.39
65.OpenHFT / Chronicle-Queue
Micro second messaging that stores everything to disk
+3 stars
from 3,823 · score 1.39
66.jtablesaw / tablesaw
Java dataframe and visualization library
+3 stars
from 3,766 · score 1.39
67.springdoc / springdoc-openapi
Library for OpenAPI 3 with spring-boot
+3 stars
from 3,740 · score 1.39
68.aeron-io / agrona
High Performance data structures and utility methods for Java
+3 stars
from 3,262 · score 1.39
69.Wisser / Jailer
Database Subsetting and Relational Data Browsing Tool.
+3 stars
from 3,213 · score 1.39
70.konsoletyper / teavm
Compiles Java bytecode to JavaScript, WebAssembly and C
+3 stars
from 3,140 · score 1.39
71.twitter / twitter-text
Twitter Text Libraries. This code is used at Twitter to tokenize and parse text to meet the expectations for what can be used on the platform.
+3 stars
from 3,140 · score 1.39
72.Hakky54 / certificate-ripper
🔐 A CLI tool to extract server certificates
+3 stars
from 944 · score 1.39
73.epam / Indigo
Universal cheminformatics toolkit, utilities and database search tools
+3 stars
from 411 · score 1.39
74.woesss / JL-Mod
J2ME emulator for Android (unofficial fork of https://github.com/nikita36078/J2ME-Loader)
+3 stars
from 321 · score 1.39
75.mybatis / mybatis-3
MyBatis SQL mapper framework for Java
+2 stars
from 20,435 · score 1.10
76.infinilabs / analysis-ik
🚌 The IK Analysis plugin integrates Lucene IK analyzer into Elasticsearch and OpenSearch, support customized dictionary.
+2 stars
from 17,514 · score 1.10
77.codecentric / spring-boot-admin
Admin UI for administration of spring boot applications
+2 stars
from 12,851 · score 1.10
78.awaitility / awaitility
Awaitility is a small Java DSL for synchronizing asynchronous operations
+2 stars
from 4,033 · score 1.10
79.apache / netbeans
Apache NetBeans
+2 stars
from 3,143 · score 1.10
80.pac4j / pac4j
Security engine for Java (authentication, authorization, multi frameworks): OpenID Connect, SAML2, CAS, OAuth, LDAP, JWT...
+2 stars
from 2,537 · score 1.10
81.apache / sedona
A cluster computing framework for processing large-scale geospatial data
+2 stars
from 2,424 · score 1.10
82.cossacklabs / themis
Easy to use cryptographic framework for data protection: secure messaging with forward secrecy and secure data storage. Has unified APIs across 14 platforms.
+2 stars
from 1,980 · score 1.10
83.apache / solr
Apache Solr open-source search software
+2 stars
from 1,691 · score 1.10
84.microsoft / playwright-java
Java version of the Playwright testing and automation library
+2 stars
from 1,564 · score 1.10
85.projectnessie / nessie
Nessie: Transactional Catalog for Data Lakes with Git-like semantics
+2 stars
from 1,524 · score 1.10
86.apple / servicetalk
A networking framework that evolves with your application
+2 stars
from 1,045 · score 1.10
87.Randgalt / record-builder
Record builder generator for Java records
+2 stars
from 933 · score 1.10
88.Hexworks / zircon
Zircon is an extensible and user-friendly, multiplatform tile engine.
+2 stars
from 795 · score 1.10
89.Syncleus / aparapi
The New Official Aparapi: a framework for executing native Java and Scala code on the GPU.
+2 stars
from 482 · score 1.10
90.zxing / zxing
ZXing ("Zebra Crossing") barcode scanning library for Java, Android
+1 stars
from 34,180 · score 0.69
91.jhipster / generator-jhipster
JHipster is a development platform to quickly generate, develop, & deploy modern web applications & microservice architectures.
+1 stars
from 22,462 · score 0.69
92.Tamsiree / RxTool
Android开发人员不得不收集的工具类集合 | 支付宝支付 | 微信支付（统一下单） | 微信分享 | Zip4j压缩（支持分卷压缩与加密） | 一键集成UCrop选择圆形头像 | 一键集成二维码和条形码的扫描与生成 | 常用Dialog | WebView的封装可播放视频 | 仿斗鱼滑动验证码 | Toast封装 | 震动 | GPS | Location定位 | 图片缩放 | Exif 图片添加地理位置信息（经纬度） | 蛛网等级 | 颜色选择器 | ArcGis | VTPK | 编译运行一下说不定会找到惊喜
+1 stars
from 12,289 · score 0.69
93.grpc / grpc-java
The Java gRPC implementation. HTTP/2 based RPC
+1 stars
from 12,073 · score 0.69
94.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.
+1 stars
from 10,550 · score 0.69
95.OpenFeign / feign
Feign makes writing java http clients easier
+1 stars
from 9,800 · score 0.69
96.AsyncHttpClient / async-http-client
Asynchronous, non-blocking HTTP & WebSocket client for the JVM
+1 stars
from 6,397 · score 0.69
97.micrometer-metrics / micrometer
An application observability facade for the most popular observability tools. Think SLF4J, but for observability.
+1 stars
from 4,908 · score 0.69
98.RoaringBitmap / RoaringBitmap
A better compressed bitset in Java: used by Apache Spark, Netflix Atlas, Apache Pinot, Tablesaw, and many others
+1 stars
from 3,954 · score 0.69
99.MovingBlocks / Terasology
Terasology - open source voxel world
+1 stars
from 3,901 · score 0.69
100.TakuSemba / Spotlight
Android Library that lights items for tutorials or walk-throughs etc...
+1 stars
from 3,671 · score 0.69