traccar / traccar
Open source GPS tracking platform - self-hosted or managed, 200+ device protocols
traccar / traccar
vespa-engine / vespa
The AI search platform
NLPchina / elasticsearch-sql
Use SQL to query Elasticsearch
graphhopper / graphhopper
Open source routing engine for OpenStreetMap. Use it as Java library or standalone web server.
haifengl / smile
Statistical Machine Intelligence & Learning Engine
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.
obsidiandynamics / kafdrop
Kafka Web UI
hneemann / Digital
A digital logic designer and circuit simulator.
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
JanusGraph / janusgraph
JanusGraph: an open-source, distributed graph database
dmytrodanylyk / circular-progress-button
Android Circular Progress Button
liquibase / liquibase
Main Liquibase Source
runelite / runelite
Open source Old School RuneScape client
iflytek / skillhub
Self-hosted, open-source agent skill registry for enterprises. Publish & version skill packages, govern with RBAC and audit logs, deploy on-premise with Docker or Kubernetes.
deepjavalibrary / djl
An Engine-Agnostic Deep Learning Framework in Java
ant-media / Ant-Media-Server
Ant Media Server — Ultra-low latency streaming engine with WebRTC (~0.5s), SRT, RTMP, HLS, CMAF, adaptive bitrate, transcoding & scaling
s4kibs4mi / java-developer-roadmap
Roadmap to becoming a Java developer in 2026
crate / crate
CrateDB is a distributed and scalable SQL database for storing and analyzing massive amounts of data in near real-time, even with complex queries. It is PostgreSQL-compatible, and based on Lucene.
jitsi / jitsi
Jitsi is an audio/video and chat communicator that supports protocols such as SIP, XMPP/Jabber, IRC and many other useful features.
yacy / yacy_search_server
Distributed Peer-to-Peer Web Search Engine and Intranet Search Appliance
fishercoder1534 / Leetcode
Solutions to LeetCode problems; updated daily. Subscribe to my YouTube channel for more.
MovingBlocks / Terasology
Terasology - open source voxel world
TNG / ArchUnit
A Java architecture test library, to specify and assert architecture rules in plain Java
Netflix / maestro
Maestro: Netflix’s Workflow Orchestrator
openrewrite / rewrite
Automated mass refactoring of source code.
AxonIQ / AxonFramework
Framework for Evolutionary Message-Driven Microservices on the JVM
WinterChenS / my-site
springboot2.0开发的个人网站，集成了：个人首页，个人博客，个人作品
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.
internetarchive / heritrix3
Heritrix is the Internet Archive's open-source, extensible, web-scale, archival-quality web crawler project.
komoot / photon
an open source geocoder for openstreetmap data
jobrunr / jobrunr
An extremely easy way to perform background processing in Java. Backed by persistent storage. Open and free for commercial use.
igniterealtime / Openfire
An XMPP server licensed under the Open Source Apache License.
spring-projects / spring-data-elasticsearch
Provide support to increase developer productivity in Java when using Elasticsearch. Uses familiar Spring concepts such as a template classes for core API usage and lightweight repository style data access.
Audiveris / audiveris
Latest generation of Audiveris OMR engine
anonfaded / FadCam
Open-source, ad-free Android multimedia recorder with background video recording, screen recording, live streaming, and remote camera control
opentripplanner / OpenTripPlanner
An open source multi-modal trip planner
bonigarcia / webdrivermanager
Automated driver management and other helper features for Selenium WebDriver in Java
Etar-Group / Etar-Calendar
Android open source calendar
risesoft-y9 / Digital-Infrastructure
数字底座是一款面向大型政府、企业数字化转型，基于身份认证、组织架构、岗位职务、应用系统、资源角色、数据目录、安全控制等功能构建的统一且安全的管理支撑平台。数字底座基于三员管理模式，具备微服务、多租户、容器化和国产化，支持用户利用代码生成器快速构建自己的业务应用，同时可关联诸多成熟且好用的内部生态应用。
Azure / azure-sdk-for-java
This repository is for active development of the Azure SDK for Java. For consumers of the SDK we recommend visiting our public developer docs at https://docs.microsoft.com/java/azure/ or our versioned developer docs at https://azure.github.io/azure-sdk-for-java.
metasfresh / metasfresh
We do Open Source ERP - Fast, Flexible & Free Software to scale your Business.
igniterealtime / Smack
A modular and portable open source XMPP client library written in Java for Android and Java (SE) VMs
reneargento / algorithms-sedgewick-wayne
Solutions to all the exercises of the Algorithms book by Robert Sedgewick and Kevin Wayne
openpnp / openpnp
Open Source SMT Pick and Place Hardware and Software
scouter-project / scouter
Scouter is an open source APM (Application Performance Management) tool.
sparrowwallet / sparrow
Desktop Bitcoin Wallet focused on security and privacy. Free and open source.
apache / polaris
Apache Polaris, the interoperable, open source catalog for Apache Iceberg
IzzelAliz / Arclight
A Bukkit(1.20/1.21) server implementation in modding environment using Mixin. ⚡
microcks / microcks
The open source, cloud native tool for API Mocking and Testing. Microcks is a Cloud Native Computing Foundation incubating project 🚀
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.
eclipse-openvsx / openvsx
An open-source registry for VS Code extensions
GIScience / openrouteservice
🌍 The open source route planner api with plenty of features.
jplag / JPlag
State-of-the-Art Source Code Plagiarism & Collusion Detection. Check for plagiarism in a set of programs.
elastic / elasticsearch-hadoop
:elephant: Elasticsearch real-time search and analytics natively integrated with Hadoop
javahongxi / whatsmars
Java生态研究(Spring Boot + Redis + Dubbo + RocketMQ + Elasticsearch)🔥🔥🔥🔥🔥
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.
openremote / core
100% open-source IoT Platform - Integrate your devices, add intelligence, build custom apps
BroadleafCommerce / BroadleafCommerce
Broadleaf Commerce CE - an eCommerce framework based on Java and Spring
codenameone / CodenameOne
Open-source framework for native apps from one Java codebase, with a custom-rendered UI you control across iOS, Android, desktop, web, and watches.