
Thunderbird
Microsoft Outlook
Mailbird
eM Client
Postbox
Mailspring
ProtonMail
Apple Mail
kdiff3
Beyond Compare
WinMerge
Meld
Araxis Merge
DiffMerge
P4Merge
Devart Code Compare
Thunderbird
kdiff3Microsoft Outlook - Organize your world. Outlookโs email and calendar tools help you communicate, stay on top of what matters, and get things done.
Beyond Compare - Beyond Compare allows you to compare files and folders.
Mailbird - Mailbird is the best email client for Windows 7, 8 and 10
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
eM Client - eM Client is a fully-featured email client for Windows and macOS with a clean and easy-to-use interface. eM Client also offers features for calendars, tasks, contacts, notes, and chat.
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.