All Open Source Apps

The open source project management platform that unifies Gantt charts, agile boards, time tracking, and team collaboration under full self-hosted control.

Open-source omnichannel customer support platform with AI-powered agents, live chat, and self-hosting — a full Intercom and Zendesk alternative.

Open-source column-oriented database that delivers real-time analytical queries on petabyte-scale data with millisecond latency.

Run your own federated social network on the open ActivityPub standard with no ads, no algorithms, and no corporate control over your community.

Free, MIT-licensed 2D and 3D game engine with one-click multi-platform export and no royalties.

Free, source-available game engine for 2D and 3D games on desktop, mobile, web, and consoles — no royalties, no licensing fees, full source access.

Generate self-destructing single-use links to share passwords and sensitive data without leaving traces in inboxes or chat logs.

Open-source C++ 3D engine with DirectX 12, Vulkan, and Metal — featuring real-time ray tracing, PBR, ECS, Lua scripting, and cross-platform support for games and graphics applications.

An open-source, C++ search database positioned as a faster, lighter alternative to Elasticsearch — supporting full-text, SQL, JSON, and vector/embedding search over a MySQL-compatible protocol.

Open-source headless eCommerce platform with a REST API, TypeScript SDK, and Next.js storefront for B2B, cross-border, and marketplace commerce — no vendor lock-in, no platform fees.

A modern Redis and Memcached replacement engineered for multi-core servers — delivering 25x more throughput, better cache hit rates, and up to 80% lower memory consumption with full API compatibility.

High-performance in-memory graph database for AI context and real-time analytics

Open-source, cross-platform 2D/3D game engine with Vulkan, Metal, and WebGL support for web, mobile, and instant gaming platforms

Open-source community platform with dynamic trust levels, real-time chat, and a powerful plugin architecture for self-hosted forums.

A fast, free, and focused Kanban tool from 37signals that strips away corporate bloat to help teams track bugs, issues, and ideas with clarity.

A Firefox-based browser that puts focus, privacy, and workflow front-and-centre without sacrificing compatibility

Open source document signing platform with WYSIWYG PDF builder, multi-party workflows, REST API, and full self-hosting via Docker.

Open-source Bloomberg alternative with AI agents and real-time market data

Single C++ binary SQL engine for real-time stream processing, ETL, and analytics on Kafka, Redpanda, and ClickHouse with sub-millisecond latency.

The complete DevOps platform that unifies Git hosting, CI/CD, issue tracking, and security scanning into a single self-hostable application.

A cross-platform, offline password manager with YubiKey, passkey, browser integration, and TOTP — all encrypted locally in the open KDBX format.

Privacy-first Chromium browser with unbiased ad-blocking and no bloat

Free, open-source 2D CAD application for Windows, macOS, and Linux with DXF/DWG support and JavaScript scripting.

Open source Ruby on Rails platform for building developer communities with articles, discussions, and social profiles—the same software that powers dev.to.