Folder comparison tool

I was looking for a folder comparison tool for Windows this morning and I found FreeFileSync.  Open-source, free, and quite instinctive and easy to use.  You select 2 folders, click "Compare" and it shows the the difference and the suggested action:

  • Add this file on this side to the other side
  • Replace this file on this side, overwriting the other side
 By default, it compares by date/time, but it can also compare by file content (hopefully doing a md5 on the file...).  It is a lot slower, but can be useful in some contexts.

It quickly gives you a good idea of what has changed on one side or the other.

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