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。
jeecgboot / JeecgBoot
doocs / leetcode
🔥LeetCode solutions in any programming language | 多种编程语言实现 LeetCode、《剑指 Offer（第 2 版）》、《程序员面试金典（第 6 版）》题解
kestra-io / kestra
Event Driven Orchestration & Scheduling Platform for Mission Critical Applications
bazelbuild / bazel
a fast, scalable, multi-language and extensible build system
languagetool-org / languagetool
Style and Grammar Checker for 25+ Languages
projectlombok / lombok
Very spicy additions to the Java programming language.
plantuml / plantuml
Generate diagrams from textual description
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.
apple / pkl
A configuration as code language with rich validation and tooling.
clojure / clojure
The Clojure programming language
stanfordnlp / CoreNLP
CoreNLP: A Java suite of core NLP tools for tokenization, sentence segmentation, NER, parsing, coreference, sentiment analysis, etc.
apache / beam
Apache Beam is a unified programming model for Batch and Streaming data processing.
apache / incubator-kie
Apache KIE (Knowledge Is Everything) is the home of Drools, OptaPlanner, jBPM, and Kogito.
lightbend / config
configuration library for JVM languages using HOCON files
vavr-io / vavr
vʌvr (formerly called Javaslang) is a non-commercial, non-profit object-functional library that runs with Java 8+. It aims to reduce the lines of code and increase code quality.
alibaba / QLExpress
QLExpress is a powerful, lightweight, dynamic language for the Java platform aimed at improving developers’ productivity in different business scenes.
pmd / pmd
An extensible multilanguage static code analyzer.
JabRef / jabref
Desktop app for managing BibTeX and BibLaTeX (.bib) libraries
SPLWare / esProc
esProc SPL is a JVM-based programming language designed for structured data computation, serving as both a data analysis tool and an embedded computing engine.
apache / fory
A blazingly fast multi-language serialization framework for idiomatic domain objects, schema IDL, and cross-language data exchange.
freeplane / freeplane
Application for Mind Mapping, Knowledge Management, Project Management. Develop, organize and communicate your ideas and knowledge in the most effective way.
apache / streampark
The Open Control Plane for Real-Time Data
dromara / liteflow
Lightweight, fast, stable, programmable component-based rule engine — where AI Agents orchestrate just like ordinary components. Uniquely designed DSL: component reuse, sync/async & dynamic orchestration, multi-language scripting, nested rules, hot deployment and smooth refresh. If you can orchestrate LiteFlow, you can orchestrate AI.
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.
aeron-io / simple-binary-encoding
Simple Binary Encoding (SBE) - High Performance Message Codec
AnySoftKeyboard / AnySoftKeyboard
Android on screen keyboard for multiple languages and NO internet access
qaiu / netdisk-fast-download
聚合多种主流网盘的直链解析下载服务, 一键解析下载，已支持夸克网盘/uc网盘/蓝奏云/蓝奏优享/小飞机盘/123云盘等. 支持文件夹分享解析. 体验地址: https://lz.qaiu.top https://189.qaiu.top
cruise-control-for-kafka / cruise-control
Cruise-control is the first of its kind to fully automate the dynamic workload rebalance and self-healing of a Kafka cluster. It provides great value to Kafka users by simplifying the operation of Kafka clusters.
apache / commons-lang
Apache Commons Lang
EVV1E / waylandcraft
Wayland Compositor in Minecraft
jOOQ / jOOR
jOOR - Fluent Reflection in Java jOOR is a very simple fluent API that gives access to your Java Class structures in a more intuitive way. The JDK's reflection APIs are hard and verbose to use. Other languages have much simpler constructs to access type meta information at runtime. Let us make Java reflection better.
opentripplanner / OpenTripPlanner
An open source multi-modal trip planner
eclipse-jdtls / eclipse.jdt.ls
Java language server
smithy-lang / smithy
Smithy is a protocol-agnostic interface definition language and set of tools for generating clients, servers, and documentation for any programming language.
plantuml / plantuml-server
PlantUML Online Server
onthegomap / planetiler
Flexible tool to build planet-scale vector tilesets from OpenStreetMap data fast
MarginaliaSearch / MarginaliaSearch
Internet search engine for text-oriented websites. Indexing the small, old and weird web.
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
zalando / logbook
An extensible Java library for HTTP request and response logging
langgraph4j / langgraph4j
🚀 LangGraph for Java is a library for Graph Engineering, designed to build sophisticated AI agentic architectures within the Java ecosystem. It works seamlessly with both Langchain4j and Spring AI.
GIScience / openrouteservice
🌍 The open source route planner api with plenty of features.
javahongxi / whatsmars
Java生态研究(Spring Boot + Redis + Dubbo + RocketMQ + Elasticsearch)🔥🔥🔥🔥🔥
Discord4J / Discord4J
Discord4J is a fast, powerful, unopinionated, reactive library to enable quick and easy development of Discord bots for Java, Kotlin, and other JVM languages using the official Discord Bot API.
sleeyax / burp-awesome-tls
Burp extension to evade TLS fingerprinting. Bypass WAF, spoof any browser.
langchain4j / langchain4j-examples
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TimefoldAI / timefold-solver
The open source Solver AI for Java and Kotlin to optimize scheduling and routing. Solve the vehicle routing problem, employee rostering, task assignment, maintenance scheduling and other planning problems.
sqlancer / sqlancer
Automated testing to find logic and performance bugs in database systems
apache / opennlp
Apache OpenNLP
batfish / batfish
Batfish is a network configuration analysis tool that can find bugs and guarantee the correctness of (planned or current) network configurations. It enables network engineers to rapidly and safely evolve their network, without fear of outages or security breaches.
arsLan4k1390 / Cherrygram
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VazkiiMods / Botania
A tech mod for Minecraft themed around the magic of nature and plant life.
objectionary / eo
EOLANG, an Experimental Pure Object-Oriented Programming Language Based on 𝜑-Calculus
mkpaz / atlantafx
Modern JavaFX CSS theme collection with additional controls.
nroduit / Weasis
Weasis is a web-based DICOM viewer for advanced medical imaging and seamless PACS integration.
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)
ahmetaa / zemberek-nlp
NLP tools for Turkish.
SkriptLang / Skript
Skript is a Paper plugin which allows server admins to customize their server easily, but without the hassle of programming a plugin or asking/paying someone to program a plugin for them.
appium / java-client
Java language binding for writing Appium Tests, conforms to W3C WebDriver Protocol
SonarSource / sonar-java
:coffee: SonarSource Static Analyzer for Java Code Quality and Security
mvel / mvel
MVEL (MVFLEX Expression Language)