Open Broadcaster Software (OBS)
Open Broadcaster Software (OBS) is a free and open-source video production software that helps you record and live stream your video content across multiple platforms. By using OBS Studio, even casual users can produce and stream professional-looking videos using any digital camera, a computer, and a video capture device. IT allows you to stream to Twitch, YouTube and many other online video platform provider or record your own videos with high quality H264 / AAC encoding.
OBS Studio offers high performance real-time video and audio capture and mixing. You can create scenes from multiple sources like window captures, text, browser windows, webcam, and more. The audio mixer has per-source filters like noise suppression and gain that give you a lot of control over the sound.
OBS is open-source software developed by volunteer contributors around the world in their free time. OBS is distributed under the GPLv2 license. The summary of the license is that OBS is free for anyone to use, for any reason. Other developers can use the OBS code in their own projects as long as they obey the guidelines set forth in the GPLv2 license. OBS has no watermarks or other limitations and can be used commercially with no restrictions.