OBS Studio (also known as Open Broadcaster Software) is a free and open-source live streaming and video recording software.
- Live streaming to Twitch, YouTube, Facebook, Huya, Douyu, VK, and any other RTMP server
- Record your game, screen, webcam, or any other source
- Hardware encoding using Nvidia NVENC, Intel Quick Sync Video (QSV), and AMD AMF (Advanced Media Framework).
- GPU-based game capture for high-performance game streaming
- Unlimited number of scenes and sources
- Customizable transitions for when you switch between scenes
- Customizable hotkeys for almost any action such as start or stop your stream or recording, push-to-talk, mute of any audio source, show or hide any video source, switch between scenes, and much more
- Live preview of any changes on your scenes and sources using Studio Mode before pushing them to your stream where your viewers will see those changes
- DirectShow capture device support (webcams, capture cards, etc.)
- …and many other features. For free. At all. 😉
OBS Studio developed with cross-platform support. Official releases are currently available for Windows, Mac, and Ubuntu Linux. There are also some unofficial releases for Arch Linux, OpenSUSE, and Gentoo. And of course, since the source code is open, you can build it for your OS.
While OBS Studio is free and open-source, you can suggest your code to the official repository. Here are some guidelines for contributors.
It also has a powerful API, enabling plugin development to provide further customization and functionality specific to your needs.