Open Source C Software & Tools

A simple, lightweight home media server for UNIX systems.

A community-led fork of Organic Maps. Free offline maps for Android and iOS with no ads, no tracking, and no data collection.

A Unix-like operating system written in V, booting on x86-64 and arm64 with a desktop, a package manager and Linux app compatibility.

A beautiful terminal email client built with Go and Bubble Tea. An open source alternative to Superhuman and Outlook for the command line.

Get up and running with Llama 3.3, DeepSeek-R1, Phi-4, Gemma 3, Mistral Small 3.1 and other large language models.

Self-hosted image sharing app that ships as a single static binary with multi-user support and shareable guest albums.

AirAssist is a menu-bar thermal monitor and workload governor for fanless Macs. Watch CPU temps live and throttle heavy processes before throttling hits.

GNU Image Manipulation Program — the venerable free, open source image editor and Adobe Photoshop alternative.

OBS Studio is free and open source software for live streaming and screen recording. Capture, mix, and broadcast video with pro-grade tools used by streamers and creators worldwide.

Open-source ESP32-powered stream deck with a cross-platform Electron companion app for launching apps, hotkeys, and multi-step actions.

Client/server backup system combining file and image backups with fast incremental backups, a web admin UI, and bare-metal restore.

Fast, typo-tolerant open-source search engine with vector, hybrid and semantic search — a simpler, cheaper alternative to Algolia.

A memory-safe, Linux-compatible OS kernel written in Rust, aiming to be a production-grade Linux alternative.

Free offline maps app for travelers, hikers, and cyclists using OpenStreetMap data. No ads, no tracking.

OpenVPN is an open source VPN daemon

Lightweight, free PDF, eBook, and comic reader for Windows that launches instantly and stays out of the way; multi-format support with minimal interface.

Lightweight client/server network backup and restore tool with librsync deduplication, TLS client authentication, and Windows and Unix clients.

A free, open-source empire-building strategy game inspired by Civilization, playable in single-player or online.

An agentic development environment built on a modern Rust terminal emulator with AI-powered coding features.