Name: OBS (Open Broadcaster Software)

Platform: Windows, Mac, Linux

Download Link: obsproject.com/download

Wiki Documentation: obsproject.com/wiki

Source Code: github.com/obsproject/obs-studio

Description:
OBS, Open Broadcaster Software, is a free recording and streaming package. It can record the desktop, microphone, webcam, save to a video or audio file, screen-cast and stream live over the Internet. The software is capable of streaming to YouTube, Twitch, Facebook and more. OBS is open source. OBS works on Windows, Mac and Linux.