apache / struts
Apache Struts is a free, open-source, MVC framework for creating elegant, modern Java web applications
apache / struts
infinispan / infinispan
Infinispan is an open source data grid platform and highly scalable NoSQL cloud data store.
spiculedata / saiku
Open-source semantic layer: one cube for Excel (MDX/XMLA), dashboards, and AI agents (MCP). Mondrian + Apache Calcite.
LINBIT / linstor-server
High Performance Software-Defined Block Storage for container, cloud and virtualisation. Fully integrated with Docker, Kubernetes, Openstack, Proxmox etc.
pnoker / iot-dc3
IoT DC3 — Connect the Physical World to AI. An open-source Industrial IoT Runtime for Physical AI: 36 protocol drivers, edge-to-cloud data delivery, and an MCP tool gateway so AI agents act on devices in a safe, controllable, traceable loop.
sakaiproject / sakai
Sakai is a freely available, feature-rich technology solution for learning, teaching, research and collaboration. Sakai is an open source software suite developed by a diverse and global adopter community.
GerritCodeReview / gerrit
Gerrit Code Review - (mirror of https://gerrit.googlesource.com/gerrit)
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.
hivemq / hivemq-community-edition
HiveMQ CE is a Java-based open source MQTT broker that fully supports MQTT 3.x and MQTT 5. It is the foundation of the HiveMQ Enterprise Connectivity and Messaging Platform
MCreator / MCreator
MCreator is an open-source software used to make Minecraft Java Edition mods, Minecraft Bedrock Edition Add-Ons, resource packs, and data packs using an intuitive easy-to-learn interface or with an integrated code editor. It is used worldwide by Minecraft players, aspiring mod developers, for education, online classes, and STEM workshops.
OpenNMS / opennms
Enterprise-Grade Open-Source Network Management Platform
BlackyHawky / Clock
Customizable, privacy‑first, open-source clock app inspired by AOSP Clock
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.
steve-community / steve
SteVe - OCPP server implementation in Java. Your trusted open-source EV charging station management system since 2013. Used by CPOs, manufacturers and developers worldwide. Managed cloud →
Slimefun / Slimefun4
Slimefun 4 - A unique Spigot/Paper plugin that looks and feels like a modpack. We've been giving you backpacks, jetpacks, reactors and much more since 2013.
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.
marcosbarbero / spring-cloud-zuul-ratelimit
Rate limit auto-configure for Spring Cloud Netflix Zuul
DSpace / DSpace
(Official) The DSpace digital asset management system that powers your Institutional Repository
apache / systemds
An open source ML system for the end-to-end data science lifecycle
SonarOpenCommunity / sonar-cxx
SonarQube C++ Community plugin (cxx plugin): This plugin adds C++ support to SonarQube with the focus on integration of existing C++ tools.
IQSS / dataverse
Open source research data repository software
gavlyukovskiy / spring-boot-data-source-decorator
Spring Boot integration with p6spy, datasource-proxy, flexy-pool and spring-cloud-sleuth
adonespitogo / AdoBot
Open-source android spyware
AthenZ / athenz
Open source platform for X.509 certificate based service authentication and fine grained access control in dynamic infrastructures. Athenz supports provisioning and configuration (centralized authorization) use cases as well as serving/runtime (decentralized authorization) use cases.
terrakube-io / terrakube
Open source IaC Automation and Collaboration Software.
jonasoreland / runnerup
A open source run tracker
bilde2910 / Hauk
Open-source realtime location sharing
Mininglamp-OSS / octo-android
OCTO Android Client — Open-source enterprise IM
lucee / Lucee
Lucee is a high-performance, open-source CFML server written in Java. Supporting JDBC, Caching, Parallelism, HTTP, ORM, REST, S3 and dynamic Java integration, Lucee is great for developers aiming to build fast, scalable applications, delivering faster startup, rapid compilation and better runtime performance.
payara / Payara
Payara Server is an open source middleware platform that supports reliable and secure deployments of Java EE (Jakarta EE) and MicroProfile applications in any environment: on premise, in the cloud or hybrid.
OpenIdentityPlatform / OpenAM
OpenAM is an open-source access management solution for identity authentication, authorization, and federation. It provides single sign-on, adaptive authentication, and centralized policy control, enabling secure access to web, mobile, and cloud applications
wso2 / product-is
Welcome to the WSO2 Identity Server source code! For info on working with the WSO2 Identity Server repository and contributing code, click the link below.
ata4 / bspsrc
A Source engine map decompiler
nordic-institute / X-Road
Source code of the X-Road® data exchange layer software
stargate / stargate
An open source data gateway
structr / structr
ATTENTION: This repository is a clone of https://gitlab.structr.com/structr/structr. All development/issue tracking has moved there. | Structr is an integrated open-source low-code development and runtime environment that uses a graph database (Neo4j).
anthonyraymond / joal
An open source command line RatioMaster with an optional WebUI.
neo4j / graph-data-science
Source code for the Neo4j Graph Data Science library of graph algorithms.
VanceVagell / kv4p-ht
Open source handheld ham radio project KV4P-HT
eventuate-local / eventuate-local
The on premise, open source version of Eventuate, which is a platform for developing transactional business applications that use the microservice architecture.
cdapio / cdap
An open source framework for building data analytic applications.
Consensys-Incorporated / teku
🚀 Open-source Ethereum consensus client written in Java
chocoteam / choco-solver
An open-source Java library for Constraint Programming
jdbc-observations / datasource-proxy
Provide listener framework for JDBC interactions and query executions via proxy.
jaredlll08 / MultiLoader-Template
A template for a NeoForge + Fabric project setup using a Common source set.
mguessan / davmail
DavMail POP/IMAP/SMTP/CalDAV/CardDAV/LDAP Exchange and Office 365 Gateway - Synced with main subversion repository at
nextcloud / news-android
📱🗞️ Android client for the Nextcloud news/feed reader app
Samuel-Oliveira / Java_NFe
Projeto Open Source Java - NFe, NFce
AdguardTeam / ContentBlocker
Content blocking extension for Samsung Internet and Yandex Browser
oraxen / oraxen
Oraxen is a minecraft plugin that allows to easily use Minecraft 1.14 features in order to create new items with custom textures. It handles the resourcepack generation, upload (using Polymath) and has an extensible API.
lakernote / easy-postman
An open-source API debugging and stress testing tool inspired by Postman and a simplified JMeter, optimized for developers with a clean UI and powerful features.
databufflabs / databuff
DataBuff is an AI-native APM built on Opentelemetry，with multi-agent troubleshooting out of the box.
Countly / countly-sdk-android
Countly Digital Analytics Android SDK
forge / roaster
A Java Parser library that allows easy parsing and formatting of Java source files
smart-cloud / smart-cloud
一站式 Spring Cloud 微服务脚手架 —— 让微服务开发像搭积木一样简单。支持服务合并部署与拆分部署、接口加解密签名、日志数据 脱敏、接口数据mock、接口文档自动生成、请求幂等校验、接口日志&&sql日志切面打印、分表分库分布式事务、国际化语言、接口监控及服务监控等
PowerNukkitX / PowerNukkitX
Open-source, feature-rich Minecraft: Bedrock Edition server written in Java. Supports custom items, blocks, entities, full vanilla commands, advanced mob AI, and world generation. Not affiliated with Mojang AB.
akarnokd / RxJavaExtensions
RxJava 4.x extra sources, operators and components and ports of many 1.x companion libraries.
Waikato / moa
MOA is an open source framework for Big Data stream mining. It includes a collection of machine learning algorithms (classification, regression, clustering, outlier detection, concept drift detection and recommender systems) and tools for evaluation.
idempiere / idempiere
iDempiere. Community Powered Enterprise. Full Open Source Business Suite ERP/CRM/MFG/SCM/POS
SonarSource / sonarqube-mcp-server
Official SonarQube MCP Server for code quality and security in AI agents