Open Source Projects in Java

LineageOS

Extend device lifespan with customizable Android

LibreOffice

Complete office productivity suite without restrictions

Freeplane

Free mind mapping software

Apache Guacamole

Clientless remote desktop gateway

Oso

An authorization library that lets developers write permission logic as readable policy code

Opengrep

Fast, open-source static analysis and code search.

metasfresh

Responsive open-source ERP for trade and industry

JasperReports

Free Java reporting library that exports PDF, Excel, Word and more

Milkman

Extensible request workbench for developers

Apache OpenOffice

Two decades of office productivity - Still free still fighting Microsoft's monopoly

Testsigma

An open source, AI-driven test automation platform.

Apache OFBiz

Apache's open-source enterprise resource planning system

Axelor Open Suite

Modular open-source ERP built on the Axelor Open Platform

Scoold

A lightweight, fast, and enterprise-ready Q&A platform.

OpenAM

Enterprise-grade identity fortress - SSO and access management without vendor handcuffs

ADempiere

Community-driven ERP, CRM, manufacturing, supply chain and POS suite

Kontalk

Community-powered encrypted messaging

Eclipse BIRT

Open-source reporting and data visualization from the Eclipse Foundation

ClearFlask

Product feedback and roadmap tool

formsflow.ai

Open source low-code platform for form automation.

MetriQL

Headless metrics layer for consistent analytics

GrapheneOS

Privacy and security focused mobile OS

Cloudogu Ecosystem

Self-hosted DevOps platform