Godot Engine – Multi-platform 2D and 3D game engine

Bitcoin Core integration/staging tree

GPT4All: Run Local LLMs on Any Device. Open-source and available for commercial use.

A library that provides an embeddable, persistent key-value store for fast storage.

A modern replacement for Redis and Memcached

A monitor of resources

Cloud-native high-performance edge/middle/service proxy

DeepSpeech is an open source embedded (offline, on-device) speech-to-text engine which can run in real time on devices ranging from a Raspberry Pi 4 to high power GPU servers.

Haptic input knob with software-defined endstops and virtual detents

A framework for building native Windows apps with React.

Control WS2812B and many more types of digital RGB LEDs with an ESP32 over WiFi!

FoundationDB - the open source, distributed, transactional key-value store

An open source re-implementation of RollerCoaster Tycoon 2 🎢

Xournal++ is a handwriting notetaking software with PDF annotation support. Written in C++ with GTK3, supporting Linux (e.g. Ubuntu, Debian, Arch, SUSE), macOS and Windows 10. Supports pen input fr…

cross-platform (Qt), open-source (GPLv3) video editor

Cap'n Proto serialization/RPC system - core tools and C++ library

🍃 Organic Maps is a free Android & iOS offline maps app for travelers, tourists, hikers, and cyclists. It uses crowd-sourced OpenStreetMap data and is developed with love by the community. No ads, …

Easy to use open source fast database for search | Good alternative to Elasticsearch now | Drop-in replacement for E in the ELK stack

Apache Thrift

A fast, local neural text to speech system

Linux System Optimizer and Monitoring - https://oguzhaninan.github.io/Stacer-Web

The JavaScript / Wasm runtime that powers Cloudflare Workers

Run .NET and Node.js code in-process on Windows, MacOS, and Linux

Defold is a completely free to use game engine for development of desktop, mobile and web games.

A lightweight, fast and extensible game server for Minecraft

A minimal, resource efficient unikernel for cloud services

🗺️ MAPS.ME — Offline OpenStreetMap maps for iOS and Android

a cross-platform, terminal-based music player, audio engine, metadata indexer, and server in c++

Open source Home Automation System

A powerful cross-platform raw photo processing program