Open Broadcaster Software is free and open source software for video recording and live streaming. Supported features include:
OBS MultiPlatform is a complete rewrite of the original OBS from the ground up, with the main goals of course being multiplatform support, a more thorough feature set, and a much more powerful API. A very early and simple release is currently available for Mac.
OBS MultiPlatform will eventually support many of the advanced requested features not present in the original OBS, such as multiple stream outputs and scene previewing. It does not have these features in this release.
OBS is completely free! Not a dime! There are no subscriptions or licenses, no payments at all. OBS is available to everyone, with source code publicly available on github for anyone to help contribute.
While OBS will always remain free, you are welcome to donate to support our development efforts.