
kdiff3
Beyond Compare
WinMerge
Meld
Araxis Merge
DiffMerge
P4Merge
Devart Code Compare
Mailo
HEY
Horde
Mailpile
Soverin
InstAddr
Teknik Mail
Cypht
kdiff3Beyond Compare - Beyond Compare allows you to compare files and folders.
HEY - Email at its best, new from Basecamp.
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
Horde - Horde Groupware is a free, enterprise ready, browser based collaboration suite.
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.
Mailpile - Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.