OBS stands for Open Broadcaster Software, and it is the most popular free live-streaming software in the world. OBS is an open-source-software application, and the project is reviewed, maintained, and enhanced by a community of volunteers. Anyone can use it for free and also participate in its development using Github, Dischord, or other online collaboration tools.
The OBS suite is a versatile tool for recording video and live streaming. It can be used to record presentations, screen-capture sessions, eSports gaming, and much more.