OBS Studio is a free and open-source software for screen recording and live streaming. It is available for Windows, macOS, Linux distributions, and BSD. OBS Studio allows users to capture and mix audio and video sources, such as webcams, microphones, and computer screens. It can be used for live video production, live streaming, and video recording. OBS Studio can stream videos to any RTMP-supporting destination, including YouTube, Twitch, Instagram, and Facebook. Some key features of OBS Studio include:

• High performance real-time video/audio capturing and mixing.
• Create scenes made up of multiple sources including window captures, images, text, browser windows, webcams, capture cards, and more.
• Streamlined Settings panel gives you access to a wide array of configuration options to tweak every aspect of your broadcast or recording.
• Modular Dock UI allows you to rearrange the layout exactly as you like.
• OBS supports all your favorite streaming platforms and more.
• Choose from a number of different and customizable transitions for when you switch between your scenes or add your own stinger video files.
• Get a high-level view of your production using the Multiview.
• OBS Studio is equipped with a powerful API, enabling plugins and scripts to provide further customization and functionality specific to your needs.

In summary, OBS Studio is a versatile software that can be used for screen recording, live streaming, and video production. It allows users to capture and mix audio and video sources and stream videos to various platforms.