Open Broadcaster Software is free and open-source software for video recording and live streaming. As of 2016, the software is now referred to as OBS Studio. There are versions of OBS Studio available for Microsoft Windows, Mac, and Linux.
OBS is useful to create videos and add effects with webcam, screen, and audio capture. It is also one of the best tools for streaming live your meeting, events, conferences on Facebook, YouTube, etc. It also makes OBS easier to use, especially for those new to the world of live-streaming. Anyone involved in live streaming needs to use a live video encoder. Encoding can be done at the software or hardware level. Software encoders like OBS Studio provide the most versatility and are used by the majority of professional broadcasters.