Best Free Visual File Comparison
ExamDiff :-
ExamDiff is a freeware Windows tool for visual file comparison. It has a number of simple and convenient features that many users have been asking for a long time from a file comparison tool.
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WinMerge is an Open Source (GPL) visual text file differencing and merging tool for Windows. It is highly useful for determing what has changed between project versions, and then merging changes between versions.
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