201.discord-jda / JDA
Java wrapper for the popular chat & VOIP service: Discord https://discord.com
+93 stars
from 4,606 · score 4.54
Trending repositories
Ranked by Attention Score: stars gained over the last 180 complete days
201–300 of 643 by Attention Score · May 7, 2026 – Nov 2, 2026 (UTC)
202.mapstruct / mapstruct
An annotation processor for generating type-safe bean mappers
+92 stars
from 7,606 · score 4.53
203.aeron-io / agrona
High Performance data structures and utility methods for Java
+92 stars
from 3,173 · score 4.53
204.judasn / IntelliJ-IDEA-Tutorial
IntelliJ IDEA 简体中文专题教程
+91 stars
from 21,939 · score 4.52
205.paohaijiao / jquick-pdf
JQuick-Pdf is an enterprise-grade Java PDF generation framework. It provides HTML-like declarative syntax and supports more than 30 kinds of graphs, greatly simplifying complex PDF report creation while retaining full native pdfbox(since version 4.0.0) APIs.
+89 stars
from 149 · score 4.50
206.bytedeco / javacv
Java interface to OpenCV, FFmpeg, and more
+87 stars
from 8,267 · score 4.48
207.winder / Universal-G-Code-Sender
A cross-platform G-Code sender for GRBL, Smoothieware, TinyG and G2core.
+86 stars
from 2,195 · score 4.47
208.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
209.com-lihaoyi / mill
A better build tool for Java, Scala and Kotlin: Simpler than Maven, easier than Gradle, with 3-7x faster dev workflows than other JVM build tools
+85 stars
from 2,716 · score 4.45
210.bsommerfeld / pathetic
The Java pathfinder that ended the era of “good enough”
+85 stars
from 310 · score 4.45
211.ityouknow / 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。
+83 stars
from 30,350 · score 4.43
212.dotansimha / graphql-code-generator
A tool for generating code based on a GraphQL schema and GraphQL operations (query/mutation/subscription), with flexible support for custom plugins.
+83 stars
from 11,183 · score 4.43
213.googleapis / google-cloud-java
Google Cloud Client Library for Java
+81 stars
from 2,025 · score 4.41
214.projectnessie / nessie
Nessie: Transactional Catalog for Data Lakes with Git-like semantics
+81 stars
from 1,445 · score 4.41
215.hstsethi / awesome-j2me
Awesome list about everything related to J2ME. Documentation, academic papers, tutorials, communities, IDEs, SDKs, emulators, apps, video games.
+81 stars
from 352 · score 4.41
216.DemchaAV / GraphCompose
Declarative Java engine for structured documents. Automatic layout, pagination, reusable templates and themes. Render print-ready PDF, export editable PowerPoint, or generate semantic DOCX.
+81 stars
from 38 · score 4.41
217.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
218.commonmark / commonmark-java
Java library for parsing and rendering CommonMark (Markdown)
+79 stars
from 2,622 · score 4.38
219.Wisser / Jailer
Database Subsetting and Relational Data Browsing Tool.
+77 stars
from 3,139 · score 4.36
220.JCTools / JCTools
No description provided by the repository host.
+76 stars
from 3,808 · score 4.34
221.HabitRPG / habitica-android
Native Android app for Habitica
+75 stars
from 1,764 · score 4.33
222.Netflix / conductorArchived
Conductor is a microservices orchestration engine.
+73 stars
from 12,679 · score 4.30
223.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
+73 stars
from 5,897 · score 4.30
224.spring-cloud / spring-cloud-gateway
An API Gateway built on Spring Framework and Spring Boot providing routing and more.
+73 stars
from 4,847 · score 4.30
225.HDFGroup / hdf5
Official HDF5® Library Repository
+73 stars
from 921 · score 4.30
226.MovingBlocks / Terasology
Terasology - open source voxel world
+70 stars
from 3,832 · score 4.26
227.microsoft / CNTKArchived
Microsoft Cognitive Toolkit (CNTK), an open source deep-learning toolkit
+69 stars
from 17,514 · score 4.25
228.opengoofy / hippo4j
📌 异步线程池框架，支持线程池动态变更&监控&报警，无需修改代码轻松引入。Asynchronous thread pool framework, support Thread Pool Dynamic Change & monitoring & Alarm, no need to modify the code easily introduced.
+67 stars
from 5,935 · score 4.22
229.jline / jline3
JLine is a Java library for handling console input.
+67 stars
from 1,744 · score 4.22
230.springdoc / springdoc-openapi
Library for OpenAPI 3 with spring-boot
+66 stars
from 3,677 · score 4.20
231.Netflix / dgs-framework
GraphQL for Java with Spring Boot made easy.
+66 stars
from 3,335 · score 4.20
232.OpenFeign / feign
Feign makes writing java http clients easier
+65 stars
from 9,736 · score 4.19
233.EsotericSoftware / kryo
Java binary serialization and cloning: fast, efficient, automatic
+65 stars
from 6,483 · score 4.19
234.hollischuang / toBeTopJavaer
To Be Top Javaer - Java工程师成神之路
+64 stars
from 25,222 · score 4.17
235.coobird / thumbnailator
Thumbnailator - a thumbnail generation library for Java
+64 stars
from 5,365 · score 4.17
236.SpongePowered / Mixin
Mixin is a trait/mixin and bytecode weaving framework for Java using ASM
+64 stars
from 1,671 · score 4.17
237.rest-assured / rest-assured
Java DSL for easy testing of REST services
+63 stars
from 7,083 · score 4.16
238.VazkiiMods / Botania
A tech mod for Minecraft themed around the magic of nature and plant life.
+63 stars
from 1,418 · score 4.16
239.teivah / algodeck
An Open-Source Collection of Flash Cards to Help You Preparing Your Algorithms & Data Structures and System Design Interviews 💯
+62 stars
from 5,784 · score 4.14
240.igniterealtime / Openfire
An XMPP server licensed under the Open Source Apache License.
+62 stars
from 3,012 · score 4.14
241.gravitee-io / gravitee-api-management
Gravitee.io - OpenSource API Management
+62 stars
from 404 · score 4.14
242.apache / avro
Apache Avro is a data serialization system.
+61 stars
from 3,248 · score 4.13
243.winterbe / java8-tutorial
Modern Java - A Guide to Java 8
+60 stars
from 16,649 · score 4.11
244.TEAMMATES / teammates
TEAMMATES is a feedback management tool for education
+59 stars
from 1,801 · score 4.09
245.openhab / openhab-core
Core framework of openHAB
+59 stars
from 1,100 · score 4.09
246.chitralabs / sheetz
Read and write Excel (.xlsx, .xls), CSV, and ODS files in Java with one line of code. Annotation-based mapping, SAX streaming, built-in validation, 19 type converters, cell styling. A high-performance alternative to Apache POI.
+59 stars
from 7 · score 4.09
247.code4craft / webmagic
A scalable web crawler framework for Java.
+58 stars
from 11,612 · score 4.08
248.alfio-event / alf.io
alf.io - The open source ticket reservation system for conferences, trade shows, workshops, meetups
+58 stars
from 1,569 · score 4.08
249.ongres / stackgres
StackGres Operator, Full Stack PostgreSQL on Kubernetes // !! Mirror repository of https://gitlab.com/ongresinc/stackgres, only accept Merge Requests there.
+58 stars
from 1,386 · score 4.08
250.apache / artemis
Apache Artemis
+58 stars
from 1,013 · score 4.08
251.careercup / CtCI-6th-Edition
Cracking the Coding Interview 6th Ed. Solutions
+57 stars
from 11,399 · score 4.06
252.docker-archive-public / docker.labsArchived
This is a collection of tutorials for learning how to use Docker with various tools. Contributions welcome.
+55 stars
from 11,827 · score 4.03
253.CalebFenton / simplify
Android virtual machine and deobfuscator
+55 stars
from 4,621 · score 4.03
254.rjust / defects4j
A Database of Real Faults and an Experimental Infrastructure to Enable Controlled Experiments in Software Engineering Research
+55 stars
from 956 · score 4.03
255.fabric8io / kubernetes-client
Java client for Kubernetes & OpenShift
+54 stars
from 3,631 · score 4.01
256.xmolecules / jmolecules
Libraries to help developers express architectural abstractions in Java code
+54 stars
from 1,516 · score 4.01
257.eclipse-collections / eclipse-collections
Eclipse Collections is a collections framework for Java with optimized data structures and a rich, functional and fluent API.
+53 stars
from 2,611 · score 3.99
258.thingsboard / tbmq
The ultimate distributed MQTT broker. Handles 100M+ connections and 10M msg/sec with ease. Built on Kafka to provide industrial-grade persistence and eliminate data loss.
+53 stars
from 722 · score 3.99
259.eclipse-openj9 / openj9
Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combines with the Extensions for OpenJDK for OpenJ9 repo.
+51 stars
from 3,496 · score 3.95
260.kroxylicious / kroxylicious
Kroxylicious, the snappy open source proxy for Apache Kafka®
+51 stars
from 281 · score 3.95
261.woesss / JL-Mod
J2ME emulator for Android (unofficial fork of https://github.com/nikita36078/J2ME-Loader)
+51 stars
from 273 · score 3.95
262.prometheus / jmx_exporter
A process for collecting metrics using JMX MBeans for Prometheus consumption
+50 stars
from 3,284 · score 3.93
263.manifold-systems / manifold
Manifold is a Java compiler plugin, its features include Metaprogramming, Properties, Extension Methods, Operator Overloading, Templates, a Preprocessor, and more.
+50 stars
from 2,715 · score 3.93
264.INRIA / spoon
Spoon is a metaprogramming library to analyze and transform Java source code. :spoon: is made with :heart:, :beers: and :sparkles:. It parses source files to build a well-designed AST with powerful analysis and transformation API.
+50 stars
from 1,913 · score 3.93
265.mapsforge / mapsforge
Vector map library and writer - running on Android and Desktop.
+50 stars
from 1,369 · score 3.93
266.DSpace / DSpace
(Official) The DSpace digital asset management system that powers your Institutional Repository
+50 stars
from 1,055 · score 3.93
267.playframework / playframework
The Community Maintained High Velocity Web Framework For Java and Scala.
+49 stars
from 12,571 · score 3.91
268.mfussenegger / nvim-jdtls
MIRROR of: https://codeberg.org/mfussenegger/nvim-jdtls
+49 stars
from 1,448 · score 3.91
269.hivemq / hivemq-mqtt-client
HiveMQ MQTT Client is an MQTT 5.0 and MQTT 3.1.1 compatible and feature-rich high-performance Java client library with different API flavours and backpressure support
+49 stars
from 1,076 · score 3.91
+48 stars
from 13,086 · score 3.89
271.schemacrawler / SchemaCrawler
Free database schema discovery and comprehension tool
+48 stars
from 1,793 · score 3.89
272.stripe / stripe-java
Java library for the Stripe API.
+48 stars
from 964 · score 3.89
273.android10 / Android-CleanArchitecture
This is a sample app that is part of a series of blog posts I have written about how to architect an android application using Uncle Bob's clean architecture approach.
+47 stars
from 15,482 · score 3.87
274.casid / jte
Secure and speedy templates for Java and Kotlin.
+47 stars
from 1,101 · score 3.87
275.Yalantis / uCrop
Image Cropping Library for Android
+46 stars
from 12,032 · score 3.85
276.cucumber / cucumber-jvm
Cucumber for the JVM
+46 stars
from 2,792 · score 3.85
277.apache / activemq
Apache ActiveMQ
+44 stars
from 2,418 · score 3.81
278.haraldk / TwelveMonkeys
TwelveMonkeys ImageIO: Additional plug-ins and extensions for Java's ImageIO
+44 stars
from 2,107 · score 3.81
279.Hakky54 / certificate-ripper
🔐 A CLI tool to extract server certificates
+44 stars
from 903 · score 3.81
280.awaitility / awaitility
Awaitility is a small Java DSL for synchronizing asynchronous operations
+43 stars
from 3,992 · score 3.78
281.find-sec-bugs / find-sec-bugs
The SpotBugs plugin for security audits of Java web applications and Android applications. (Also work with Kotlin, Groovy and Scala projects)
+43 stars
from 2,410 · score 3.78
282.dhatim / fastexcel
Generate and read big Excel files quickly
+43 stars
from 870 · score 3.78
283.tink-crypto / tinkArchived
Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.
+42 stars
from 13,496 · score 3.76
284.nisrulz / flutter-examples
[Examples] Simple basic isolated apps, for budding flutter devs.
+42 stars
from 7,111 · score 3.76
285.chriswhocodes / jitwatch
Log analyser / visualiser for Java HotSpot JIT compiler. Inspect inlining decisions, hot methods, bytecode, and assembly. View results in the JavaFX user interface.
+42 stars
from 3,271 · score 3.76
286.zalando / logbook
An extensible Java library for HTTP request and response logging
+42 stars
from 2,029 · score 3.76
287.SimpleITK / SimpleITK
SimpleITK: a layer built on top of the Insight Toolkit (ITK), intended to simplify and facilitate ITK's use in rapid prototyping, education and interpreted languages.
+42 stars
from 1,051 · score 3.76
288.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
+41 stars
from 12,249 · score 3.74
289.mhrimaz / AwesomeJavaFX
A curated list of awesome JavaFX libraries, books, frameworks, etc...
+41 stars
from 3,335 · score 3.74
290.instancio / instancio
A library that creates fully populated objects for your unit tests.
+41 stars
from 1,130 · score 3.74
291.dokimos-dev / dokimos
LLM and agent evaluation for Java & Kotlin. Runs in JUnit and CI. Spring AI, LangChain4j, Koog, Embabel, and any LLM client.
+41 stars
from 20 · score 3.74
292.alibaba / fastjsonArchived
FASTJSON 2.0.x has been released, faster and more secure, recommend you upgrade.
+40 stars
from 25,522 · score 3.71
293.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.
+40 stars
from 1,181 · score 3.71
294.codelibs / fess
Open-source, self-hosted enterprise & site search server built on OpenSearch. Crawls web / file / DB / cloud sources, 20+ languages, REST API, and AI/RAG & semantic search. Apache-2.0.
+40 stars
from 1,102 · score 3.71
295.hierynomus / sshj
ssh, scp and sftp for java
+39 stars
from 2,632 · score 3.69
296.apache / stormcrawler
A scalable, mature and versatile web crawler based on Apache Storm
+39 stars
from 972 · score 3.69
297.tink-crypto / tink-java
Java implementation of Tink
+38 stars
from 273 · score 3.66
298.jtablesaw / tablesaw
Java dataframe and visualization library
+37 stars
from 3,732 · score 3.64
299.vsch / flexmark-java
CommonMark/Markdown Java parser with source level AST. CommonMark 0.28, emulation of: pegdown, kramdown, markdown.pl, MultiMarkdown. With HTML to MD, MD to PDF, MD to DOCX conversion modules.
+37 stars
from 2,601 · score 3.64
300.BayesWitnesses / m2cgen
Transform ML models into a native code (Java, C, Python, Go, JavaScript, Visual Basic, C#, R, PowerShell, PHP, Dart, Haskell, Ruby, F#, Rust) with zero dependencies
+36 stars
from 2,963 · score 3.61