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.
emanuele-f / PCAPdroid
No-root network monitor, firewall and PCAP dumper for Android
questdb / questdb
QuestDB is a high performance, open-source, time-series database
alipay / SoloPi
SoloPi 自动化测试工具
gsantner / markor
Text editor - Notes & ToDo (for Android) - Markdown, todo.txt, plaintext, math, ..
Sayi / poi-tl
Generate awesome word(docx) with template
SysAdminDoc / HushFacebook
Hushfacebook Morphe patches for Facebook. Hide ads, suggested posts, save videos and photos, tune playback and Reels, and use a focused Marketplace mode, and much more.
opendataloader-project / opendataloader-pdf
PDF Parser for AI-ready data. Automate PDF accessibility. Open-source.
Angel-ML / angel
A Flexible and Powerful Parameter Server for large-scale machine learning
apache / streampark
The Open Control Plane for Real-Time Data
RoaringBitmap / RoaringBitmap
A better compressed bitset in Java: used by Apache Spark, Netflix Atlas, Apache Pinot, Tablesaw, and many others
sanluan / PublicCMS
More than 2.7 million lines of code modification continuously iterated for 10 years to modernize java cms, easily supporting tens of millions of data, tens of millions of PV; Support static, server side includes; Currently has 0.0005% of the world's users (w3techs provided data), language support in Chinese, Japanese, English
higress-group / himarket
HiMarket is an enterprise-level "AI Capability Marketplace and Developer Ecosystem Hub." It is not merely a simple aggregation of traditional APIs, but rather a comprehensive platform that packages, publishes, manages, and operates core AI assets such as enterprise Model APIs, MCP Servers, Agent APIs, etc., through standardized product formats.
markusfisch / ShaderEditor
Android app to create GLSL shaders and use them as live wallpaper
OpenGamma / Strata
Open source analytics and market risk library from OpenGamma
TimefoldAI / timefold-quickstarts
Get started with Timefold quickstarts here. Optimize the vehicle routing problem, employee rostering, task assignment, maintenance scheduling and other planning problems.
MoshiCoCo / Apple-Monitor
Apple store inventory monitoring tool implemented in Java, supporting Bark, Feishu, Lark robot and other message push methods. Currently supports monitoring Apple stores in mainland China, Hong Kong, Macau, China Taiwan, Japan and other regions.
redisson / redisson
Redisson: Valkey & Redis Java Client and Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Over 50 Valkey and Redis based Java 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..
CarGuo / GSYVideoPlayer
Video players (IJKplayer, ExoPlayer, MediaPlayer), HTTPS, 16k page size, danmaku (bullet chat) support, external subtitles, support for filters, watermarks, and GIF screenshots, pre-roll and mid-roll ads, multiple simultaneous playback, basic seeking/dragging, volume and brightness adjustment, play-while-cache support
quarkusio / quarkus
Quarkus: Supersonic Subatomic Java.
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...
apache / zeppelin
Web-based notebook that enables data-driven, interactive data analytics and collaborative documents with SQL, Scala and more.
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.
apache / hudi
Upserts, Deletes And Incremental Processing on Big Data.
brianfrankcooper / YCSB
Yahoo! Cloud Serving Benchmark
freeplane / freeplane
Application for Mind Mapping, Knowledge Management, Project Management. Develop, organize and communicate your ideas and knowledge in the most effective way.
knowm / XChange
XChange is a Java library providing a streamlined API for interacting with 60+ Bitcoin and Altcoin exchanges providing a consistent interface for trading and accessing market data.
JCTools / JCTools
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Atmosphere / atmosphere
Portable AI agent runtime for the JVM. One @Agent class runs on Spring AI, LangChain4j, Anthropic, or 9 more behind one SPI. Token streaming, tool calls, human approvals, and governance over WebSocket, SSE, gRPC, or WebTransport/HTTP3. Speaks MCP, A2A, and AG-UI.
apache / paimon
Apache Paimon is a lake format that enables building a Realtime Lakehouse Architecture with Flink and Spark for both streaming and batch operations.
apache / linkis
Apache Linkis builds a computation middleware layer to facilitate connection, governance and orchestration between the upper applications and the underlying data engines.
alldatacenter / alldata
🔥🔥 AllData可定义数据中台，以数据平台为底座，以数据中台为桥梁，以机器学习平台为工厂，以大模型应用为上游产品，提供全链路数字化解决方案。产品正式演示体验、社群咨询、商务采购：https://docs.qq.com/doc/DVHlkSEtvVXVCdEFo
CodeRayZhang / Movie_Recommend
历史学习项目：Spark 电影推荐、爬虫、Web 与后台。新版持续开发见 cinematch-recommender。
88250 / symphony
🎶 一款用 Java 实现的现代化社区（论坛/问答/BBS/社交网络/博客）系统平台。A modern community (forum/Q&A/BBS/SNS/blog) system platform implemented in Java. https://ld246.com
commonmark / commonmark-java
Java library for parsing and rendering CommonMark (Markdown)
quarkusio / quarkus-quickstarts
Quarkus quickstart code
eclipse-openvsx / openvsx
An open-source registry for VS Code extensions
broadinstitute / gatk
Official code repository for GATK versions 4 and up
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.
88250 / solo
🎸 B3log 分布式社区的 Java 博客端节点系统，欢迎加入下一代社区网络。B3log distributed community blog-end node based on Java, welcome to join the next generation community network.
sofastack / sofa-ark
SOFAArk is a light-weight，java based classloader isolation framework.
aws / serverless-java-container
A Java wrapper to run Spring, Spring Boot, Jersey, and other apps inside AWS Lambda.
gradle / gradle-profiler
A tool for gathering profiling and benchmarking information for Gradle builds
projectnessie / nessie
Nessie: Transactional Catalog for Data Lakes with Git-like semantics
tess1o / geopulse
A self-hosted, privacy-first location timeline platform: an open-source alternative to Google Timeline with automatic trip detection, Immich integration, and rich analytics.
moyangzhan / langchain4j-aideepin
AI 应用平台（聊天、绘画、知识库、工作流、 MCP服务市场、语音输入输出、长期记忆） | AI application platform (Chat,Draw,RAG,Workflow,MCP marketplace, ASR,TTS, Long-term memory etc)
lucko / spark
A performance profiler for Minecraft clients, servers, and proxies.
zinggAI / zingg
Scalable master data management, identity resolution, entity resolution, and deduplication using ML
apache / amoro
Apache Amoro(incubating) is a Lakehouse management system built on open data lake formats.
quickfix-j / quickfixj
QuickFIX/J is a full featured messaging engine for the FIX protocol. - This is the official project repository.
apache / celeborn
Apache Celeborn is an elastic and high-performance service for shuffle and spilled data.
smallrye / smallrye-mutiny
An Intuitive Event-Driven Reactive Programming Library for Java
OWASP-Benchmark / BenchmarkJava
OWASP Benchmark is a test suite designed to verify the speed and accuracy of software vulnerability detection tools. A fully runnable web app written in Java, it supports analysis by Static (SAST), Dynamic (DAST), and Runtime (IAST) tools that support Java. The idea is that since it is fully runnable and all the vulnerabilities are actually exploitable, it’s a fair test for any kind of vulnerability detection tool. For more details on this project, please see the OWASP Benchmark Project home page.
google / caliper
Deprecated micro-benchmarking library for Java
entropy-cloud / nop-entropy
Nop Platform 2.0 is a next-generation low-code development platform built from scratch based on the principles of reversible computation, adopting a language-oriented programming paradigm. It includes a suite of fully designed engines such as a GraphQL engine, ORM engine, workflow engine, reporting engine, rule engine, and batch processing engine,
dromara / ujcms
Java开源网站内容管理系统(java cms)。使用SpringBoot、MyBatis、Spring Security、Lucene、FreeMarker、TypeScript、Vue3、ElementPlus等技术开发。
sunkaifei / FlyCms
FlyCms 是一个类似知乎以问答为基础的完全开源的JAVA语言开发的社交网络建站程序，基于 Spring Boot+Bootstrap3+MyBatis+MySql+Solr +Ehcache应用架构，专注于社区内容的整理、归类和检索，它集合了问答，digg，wiki 等多个程序的优点，帮助用户轻松搭建专业的知识库和在线问答社区。业务模块包括：权限管理，会员管理，角色管理，定时任务管理（调度管理），问答管理，文章管理，分享管理，短信接口管理和邮件系统发送（注册、找回密码、邮件订阅），跨域登录，消息推送，全文检索、前端国际化等等众多模块，等您自己来体验！
VazkiiMods / Quark
Small things, improving Minecraft without changing the core gameplay.
Sunagatov / Iced-Latte
a online Marketplace for coffee retail (Backend)
AllTick-Official / alltick-realtime-forex-crypto-stock-tick-finance-websocket-api
AllTick real-time financial market data API with REST and WebSocket access to stocks, forex, crypto, commodities, and indices.