All Open Source Apps

Transform OpenAPI specifications into interactive, browser-based API documentation that developers and consumers can explore and test live.

Modern Node.js forum software with real-time WebSockets, multi-database support, and a plugin ecosystem — the community platform built for the open web and the Fediverse.

Self-hosted Backend-as-a-Service for Node.js with REST, GraphQL, real-time Live Query, cloud code, and pluggable adapters for any infrastructure.

Privacy-first, self-hosted analytics and customer engagement platform with full data ownership, GDPR compliance, and AI-powered insights across mobile, web, desktop, and IoT.

Distributed SQL database for real-time analytics at scale

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

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.

Open-source AI-native platform to build and deploy internal tools, workflows, and AI agents with a visual drag-and-drop builder and 80+ data source integrations.

No-code, open-source game engine for building 2D, 3D and multiplayer games — publish to iOS, Android, Steam and the web.

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.

The power-user LLM frontend that unifies dozens of AI backends with a rich scripting engine, immersive Visual Novel mode, and a thriving extension ecosystem.

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.

The all-in-one AI platform for private document chat, no-code agents, and local LLMs with zero setup friction.

Modular open-source logistics and supply chain operating system

A fast, fully static, and secure self-hosted startpage with Docker service discovery and integrations for over 160 services.

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

Open-source, self-hosted file manager with collaborative drives, AI-powered summarization, and OnlyOffice document editing for teams who want full data sovereignty.

Self-hosted monitoring for every service you run — 23 monitor types, 95 notification channels, live dashboards, and public status pages with no vendor lock-in.

Open-source reporting platform to build live dashboards from SQL, NoSQL, APIs, and SaaS tools with an AI assistant that creates charts from natural language.