All Open Source Apps

Distributed SQL database for real-time analytics at scale

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.

Open-source BI tool with drag-and-drop dashboards, 20+ data source connectors, and AI-powered natural language queries — a self-hosted alternative to Tableau.

Event-driven orchestration platform for data, AI, and infrastructure workflows — define everything in YAML, run anywhere at scale.

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

Google's internal tool, open-sourced, for transforming and moving code between repositories — keeping a confidential and public repo in sync, importing external contributions into an authoritative repo, or migrating code once.

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.

A high-performance, open-source time-series database built for financial market data, IoT telemetry, and real-time analytics, combining a zero-GC Java/C++ core with SIMD-accelerated SQL and a WAL-to-Parquet storage engine.

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.

Open-source authentication platform you self-host, giving you complete control over user data with zero vendor lock-in.

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

The open-source PDF platform you can run anywhere — edit, convert, sign, and automate PDFs without sending files to external servers.

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.