Genius Vision NVR Software CmE is a full featured software solution that helps you to monitor multiple video cameras from your desktop, as well as to turn your webcam into a remote video surveillance system. It is a freeware digital video recording application that's comprehensive and advanced.
Here are some screenshots to illustrate the features and user interface of this application:
Camtasia
Blackmagic Desktop Video
Ashampoo Snap
OBS Studio
oCam