What is the best free IP camera software?

Video technology makes it possible to use video surveillance not only for security and safety, but for all kinds of uses to cost-effectively monitor operations for business optimization and process improvement.

If you want to exclusively run open source software, Bluecherry is the Linux NVR for you. It's a cross-platform video surveillance system so you're free to run it on 
iSpy is an open source security program that connects to IP cameras or webcams . The software supports unlimited cameras and allows viewer 
A video surveillance security system. Protect Use any type of cameras, including IP cameras and USB cameras Getting started with Kerberos Open Source.

Video Surveillance software enables new level of home security & surveillance.

Artificial intelligence is giving surveillance cameras digital brains to match their eyes, letting them analyze live video with no humans necessary. This could be good news for public safety, helping police and first responders more easily spot crimes and accidents and have a range of scientific and industrial applications. But it also raises serious questions about the future of privacy and poses novel risks to social justice.
Video Tutorial:
1) How to use video surveillance software?
2) How to add new video surveillance devices?
3) How to view video surveillance archive?
4) How to create Live broadcast from IP camera?
5) How to upload events to youtube automatically?
Video Surveillance Software
Video tutorial