WinMerge - You will see the difference…
WinMergeisanOpenSourcedifferencingandmergingtoolforWindows.WinMergecancomparebothfoldersandfiles,presentingdifferencesinavisualtextformatthatiseasytounderstandandhandle.
Scooter Software - Home of Beyond Compare
ScooterSoftware:HomeofBeyondCompare