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 with high performance real time video/audio capturing and mixing. It is also capable of live streaming on different online services such as Twitch, YouTube.
Wirecast is a video streaming software and a switcher from Telestream. With this software, you can record videos, set up scenes, or stream to social media channels like Facebook, Twitter, YouTube, Vimeo, etc.