Open Broadcaster Software (OBS)

OBS (Open Broadcaster Software) is a free, reliable, and open source software for streaming games and live video content to the internet or to video files. It allows you to record video from webcam, the current game that is playing, a section from the desktop, or the entire screen. Also, you can so you can share your video to different online services such as Twitch, YouTube, or even to a custom server address to live streaming.

The open source software with high performance real time video/audio capturing and mixing, has an intuitive audio mixer with per-source filters such as noise gate, noise suppression, and gain. Besides, you can take full control with VST plugin support.

Create an unlimited number of scenes made up of multiple sources including window captures, images, text, browser windows, webcams, capture cards and more, you can switch between seamlessly via custom transitions.

OBS has an option to customize the video resolution as well as frames per second. You can also set hotkeys for nearly every sort of action, such as switching between scenes, starting/stopping streams or recordings, muting audio sources, and more. With the feature of Multiview, you can monitor 8 different scenes and easily cue or transition to any of them with merely a single or double click.

As an open source program, there are huge library of plugins all available for free, along with the source code, on GitHub. Open Broadcaster Software is a great place to start to enter the world of live streaming. Download and try it, you won't be disappointed.