ZoneMinder - ZoneMinder is a free and open-source piece of security software that can be used at home or in your business. The software puts you in control of all of your data, and it is exceptionally easy to setup. Read more about ZoneMinder.
Envysion - Envysion Insights: Intelligence transforms traditional Surveillance Video Products
Blue Iris - Blue Iris is a high end security monitoring system that lets you view and control the feeds from all the cameras at your home or place of business.
IP Camera Viewer - Free IP Camera Viewer allows you to remotely view live IP cameras on your PC's or Laptops.
MotionEye - motionEye is a web frontend for the motion daemon, written in Python.
Avigilon Control Center - Powerful, easy-to-use end-to-end security solutions for any industry.