Estimates even suggest that a mind-blowing 96% of all web servers globally are running on some form of open source Linux operating system, for example. Since the open source movement took off as a software development philosophy at the end of the 1990s, it’s changed the world. Whenever software has an open source license, it means anyone in the world can download, modify and distribute it without paying fees to its original creator. Open source software is any kind of program where the developer behind it chooses to release the source code for free. Click the links below to go to the provider's website: