
kdiff3
Beyond Compare
WinMerge
Meld
Araxis Merge
DiffMerge
P4Merge
Devart Code Compare
Google Groups
Mighty Networks
Nabble
Bigtent
Admidio
TidyHQ
Membee
DownToMeet
kdiff3Beyond Compare - Beyond Compare allows you to compare files and folders.
Mighty Networks - Mighty Networks enables entrepreneurs, organizations, and companies to create and grow a community-powered brand.
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
Nabble - Nabble is a forum software that are embeddable and fully customizable with scripting language.
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.
Bigtent - BigTent is a web-based organization and communication portal for groups.