
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.
Difftastic suits developers who want syntax-aware comparisons from the command line, including users of Git or the other listed version-control systems. Its prebuilt binaries cover Linux, macOS and Windows.