
kdiff3
Beyond Compare
WinMerge
Meld
Araxis Merge
DiffMerge
P4Merge
Devart Code Compare
Bigtent
Google Groups
TidyHQ
Admidio
Mighty Networks
Nabble
Membee
DownToMeet
kdiff3Beyond Compare - Beyond Compare allows you to compare files and folders.
Google Groups - Google Groups allows you to create and participate in online forums and email-based groups with a rich experience for community conversations.
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
TidyHQ - Organization management tool to support membership, subscriptions, event planning, and outreach.
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.
Admidio - Admidio is a free online membership management, which is optimized for associations, groups and organizations.