Build cross-platform desktop apps with JavaScript, HTML, and CSS

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

C++ based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)

Telegram Desktop messaging app

SQL powered operating system instrumentation, monitoring, and analytics.

UPX - the Ultimate Packer for eXecutables

NoSQL data store using the Seastar framework, compatible with Apache Cassandra and Amazon DynamoDB

Tiny cross-platform webview library for C/C++. Uses WebKit (GTK/Cocoa) and Edge WebView2 (Windows).

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

software version control visualization

Redpanda is a streaming data platform for developers. Kafka API compatible. 10x faster. No ZooKeeper. No JVM!

Code. Music. Live.

mawww's experiment for a better code editor

Monero: the secure, private, untraceable cryptocurrency

Cross-platform library for building Telegram clients

Cutting Edge WebRTC Video Conferencing

A lightweight, fast and extensible game server for Minecraft

Minimalistic GUI library for OpenGL

Telegram Bot API server

Zopfli Compression Algorithm is a compression library programmed in C to perform very good, but slow, deflate or zlib compression.

maim (make image) takes screenshots of your desktop. It has options to take only a region, and relies on slop to query for regions. maim is supposed to be an improved scrot.

Advanced rhythm game for Windows, Linux and OS X. Designed for both home and arcade use.

Android File Transfer for Linux (and macOS!)

Vireo is a lightweight and versatile video processing library written in C++11

Custom unofficial osu! practice client with Virtual Reality support

Cross platform Twitch.tv client

A flexible database focused on performance and scalability

Calculates user performance aggregates from scores

Fast osu! port for Linux (and more)