Beyond Compare - Beyond Compare allows you to compare files and folders.
Communifire - Enterprise Social Collaboration Software
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.
LS Intranet - LS Intranet is a corporate intranet that facilitates multiple employees collaborating on projects, and working in synergy.
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
Unily - Unily is a cloud-based intranet solution designed by SharePoint consultancy BrightStarr.