NVivo
ATLAS.ti
MAXQDA
Dedoose
Quirkos
QualCoder
Taguette
Microsoft Bing Spell Check API
kdiff3
Beyond Compare
WinMerge
Meld
Araxis Merge
DiffMerge
P4Merge
Devart Code Compare
NVivo
kdiff3ATLAS.ti - ATLAS.ti is a powerful workbench for the qualitative analysis of large bodies of textual, graphical, audio and video data. It offers a variety of sophisticated tools for accomplishing the tasks associated with any systematic approach to "soft" data.
Beyond Compare - Beyond Compare allows you to compare files and folders.
MAXQDA - a professional software for qualitative and mixed methods data analysis
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
Dedoose - A cross-platform app for analyzing qualitative and mixed methods research with text, photos, audio, videos, spreadsheet data and more.
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.