
kdiff3
Beyond Compare
WinMerge
Meld
Araxis Merge
DiffMerge
P4Merge
Devart Code Compare
Secure Notepad
Jetico BCTextEncoder
GNUPGK
TheLetterEncrypter
SecretPad
GizmoMarks
CTI Text Encryption
Crypditor
kdiff3
Secure NotepadBeyond Compare - Beyond Compare allows you to compare files and folders.
Jetico BCTextEncoder - Jetico BCTextEncoder is software that ensures your text-based communications are safe by allowing you to encrypt them.
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
GNUPGK - A GnuPG Frontend GUI made in C#.
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.
TheLetterEncrypter - TheLetterEncrypter is a small (14KB download) AES-based text-encryption program.