DirDiff started as a tool to check two copies of files in separate directories
Edit By BS Editor: DirDiff started as a tool to check two copies of files in separate directories, either by date or by a different modified date.

From there, I had a go at building my own text-diff. Other diffs show the content of both files, and thus show the content that is equal twice. Sounds like a lot of wasted screen-space to me, so I show a single flow and the different parts in different colors. Yes, I know I might have got green and red reversed, but since I use diff primarily to check what Ive changed before commit, I like them to show up in red. It draws attention.

It also has a drop handle to drop files or directories on from the shell. Open the drop handle from the main menu, or start DirDiff.exe with the /H command-line option. Either drop two items together, or drop one item first and then the other to compare with. you can free download DirDiff 2.72 now.