
Diffchecker
8.2#1 in file comparison softwareFrom $15 a monthFree planiOSWebAPIExtension
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Diffchecker suits developers, writers, editors, and data or operations teams who need to compare text or other file types. Its desktop app also suits users who need offline comparisons.
It suits users who compare files, merge changes, or synchronize directories across Windows, macOS, or Linux. The command-line interface may also suit workflows that invoke the tool from other applications.