iSpy - iSpy is software that allows the user to view and control video surveillance cameras. The software began development in 2007 and now has over 2 million users around the world, according to the software's website. Read more about iSpy.
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.
motionEyeOS - A Video Surveillance OS For Single-board Computers
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.
Eyeline by NCH Software - This powerful, yet simple, system provides priceless peace of mind for your home or your business. Monitor and record up to 100+ cameras and set up alerts.
OpenALPR - Automatic License Plate Recognition