Sometimes figuring out which is which or how they differ is easy. File size, combined with modification or creation date usually does the job. Unless you have a folder full of files that need to be checked and compared and then a simple task becomes tedium personified.
The right app can save not just minutes but hours from tedious tasks. VisualDiffer is one such tool. All it does is compare files and folders, side-by-side, so you can see differences. That makes it easier to determine which files to keep, and which to discard or archive (a major component of file management). This cleverly designed utility is perfect for any developer, programmer, or document manager to compare folders of files, and so so quickly and efficiently.
Even the name VisualDiffer implies that the app makes it easy to see the differences between various files, and it does exactly that in a side-by-side comparison. Not only can you see differences between files, VisualDiffer color codes files for easier identification. Even better, you control which techniques are used to do the comparisons– dates, sizes, all the way to byte-by-byte comparisons.
Since Unix makes up a chunk of OS X’s core, that means your Mac comes with what is known as the unix diff command to compare files at a very granular level. Not every Mac user needs this much file comparison power, but for those who do, it saves an incredible amount of time; often reducing what used to take hours to minutes, and minutes to seconds.