Open Source Projects in Java
Ghidra
Software reverse engineering framework
DBeaver
Universal database tool
Appsmith
Open-source low-code platform
Keycloak
Enterprise authentication made simple
Signal
Speak freely with state-of-the-art end-to-end encryption.
Jenkins
Leading open-source automation server with extensive plugin support.
ThingsBoard
Open-source IoT platform for device management, data collection, and processing.
Airbyte
Open-source data integration platform
QuestDB
A time-series database built for very fast ingestion and SQL queries over market, sensor and metrics data.
Apache APISIX
Cloud-native API gateway
Neo4j
Graph database for connected data
SuperTokens
Open source alternative to Auth0 and Cognito.
Cryptomator
Client-side encryption for cloud files
Aegis
Free and secure 2FA app for Android
BigBlueButton
Open-source web conferencing system
Karate
Unified framework for all testing needs
Graylog
Open-source platform for centralized log management.
Standard Notes
An end-to-end encrypted notes app for digitalists and professionals.
Apache NiFi
Automate data flow between systems
JanusGraph
Scalable distributed graph database optimized for large-scale data storage and querying.
Ant Media Server
Scalable live video streaming server
LineageOS
Extend device lifespan with customizable Android
Freeplane
Free mind mapping software
Apache Guacamole
Clientless remote desktop gateway
LibreOffice
Complete office productivity suite without restrictions
Opengrep
Fast, open-source static analysis and code search.
Milkman
Extensible request workbench for developers
Testsigma
An open source, AI-driven test automation platform.
Scoold
A lightweight, fast, and enterprise-ready Q&A platform.
Kontalk
Community-powered encrypted messaging
ClearFlask
Product feedback and roadmap tool
formsflow.ai
Open source low-code platform for form automation.
MetriQL
Headless metrics layer for consistent analytics
OneDev
Self-hosted DevOps excellence - Git
OpenAM
Enterprise-grade identity fortress - SSO and access management without vendor handcuffs
Apache OpenOffice
Two decades of office productivity - Still free still fighting Microsoft's monopoly
OpenSearch
A truly open search and analytics engine built after Elastic changed its license
Oso
An authorization library that lets developers write permission logic as readable policy code
Cloudogu Ecosystem
Self-hosted DevOps platform
GrapheneOS
Privacy and security focused mobile OS