Alfresco is the leading open source enterprise content management system built by the most experienced team in the industry drawn from Documentum®, Vignette® and Interwoven®. Twenty years of experience drove us to believe that legacy ECM technologies are plagued with high cost, high complexity and lack of customer control.
Platform: Linux, Windows, Mac OS X;License: GNU GPL
Reference: https://www.alfresco.com/products/