The Swift Programming Language

Official source code of FreeCAD, a free and opensource multiplatform 3D parametric modeler.

A modern, C++-native, test framework for unit-tests, TDD and BDD - using C++14, C++17 and later (C++11 support is in v2.x branch, and C++03 on the Catch1.x branch)

Seamless operability between C++11 and Python

UPX - the Ultimate Packer for eXecutables

Cross-platform, graphics API agnostic, "Bring Your Own Engine/Framework" style rendering library.

MuseScore is an open source and free music notation software. For support, contribution, bug reports, visit MuseScore.org. Fork and make pull requests!

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

The official Open-Asset-Importer-Library Repository. Loads 40+ 3D-file-formats into one unified and clean data structure.

A fast multi-producer, multi-consumer lock-free concurrent queue for C++11

Point Cloud Library (PCL)

OpenGL Mathematics (GLM)

Cross-platform music production software

Free open-source non-linear video editor

A C++ library for interacting with JSON.

RetDec is a retargetable machine-code decompiler based on LLVM.

JUCE is an open-source cross-platform C++ application framework for desktop and mobile applications, including VST, VST3, AU, AUv3, LV2 and AAX audio plug-ins.

Universal Scene Description

Asio C++ Library

Open-source video compositing software. Node-graph based. Similar in functionalities to Adobe After Effects and Nuke by The Foundry.

A fast and robust web server and application server for Ruby, Python and Node.js

Source code for pbrt, the renderer described in the third edition of "Physically Based Rendering: From Theory To Implementation", by Matt Pharr, Wenzel Jakob, and Greg Humphreys.

Software modular synth

Elements C++ GUI library

Command the forces of The Project in a battle to rebuild the world after mankind has been nearly destroyed by nuclear missiles. A 100% free and open source real-time strategy game for Windows, macO…

Farbrausch demo tools 2001-2011

Qt Node Editor. Dataflow programming framework

(Deprecated!) SDK on top of nodejs to build desktop apps using HTML5/CSS/JS

C++ library for audio and music analysis, description and synthesis, including Python bindings

Dust3D is a cross-platform 3D modeling software that makes it easy to create low poly 3D models for video games, 3D printing, and more.