Godot Engine – Multi-platform 2D and 3D game engine
Caffe: a fast open framework for deep learning.
Scriptable Headless Browser
The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
The open-source database for the realtime web.
Dear ImGui: Bloat-free Immediate Mode Graphical User interface for C++ with minimal dependencies
LevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values.