Compare folders
Visualize folders side-by-side and find immediately which files are different, colors help to understand the diff type. Colors identify older, modified and newer files
Compare files
Show visually changes in files, move between difference and more.
Choose items
At startup you can choose to compare two files or two folders or open a saved session.
File Filters
You can exclude files from comparison, the predefined filter contains versioning files like svn, git and bazar and many zip file formats.
What they're saying
The whole idea behind VisualDiffer is to make it easy to find duplicates so you don't delete the wrong files. It's fast, easy, inexpensive, and with powerful filtering features. Mac360
I found the comparison feature to be quite fast and effective. We used the app to compare two different iTunes libraries. VisualDiffer handled the job brilliantly. An awesome file tool that can save you a lot of time comparing your files and directories. mac appfinders