Compare Any Two Folders Side-by-Side

Written by Kevin

Compare any two folders and their contents side-by-side, displaying what is different and the ability to sync any missing files

The other day I was cleaning out my closet (I’m sorry momma) and I found a hard drive that I have used in the past for backing up various PC’s around my house. Well it turns out I looked everywhere for this drive a few months earlier, couldn’t find it so I had purchased a new one. I now wanted to compare the two hard drives to see the differences between them so I can could merge all the data to one hard drive with out have duplicate copies, or having to manually sift through every file and folder.

So after a few minutes with Google Search I discovered MOBZync, which displays any two folders and their contents side-by-side, showing you what is different. It also color codes the files that are found to be duplicates. Files that are located in one folder, but not the other are marked with the color purple, while files that are in both folders are black.  Another cool feature about this program is it if it finds the same folder on each location it then compares them to see which one is newer and marks it the color green, and the older folder will be marked red.  It may be easier to understand by reviewing the screenshot below:

MOBZync’s pleasantly simple graphical interface also allows you to setup synchronization between the two folders you are comparing. In order to enable this feature simply launch the application and specify both source (backup) and target folder path. You will then need to click ‘Compare’ to find the missing files in the listed folders. Next to Compare, you have options to copy files from left to right side and vice versa, and to sync both folders.

If you decide to use the ‘Sync’ option you will be prompted to specify extra sync options and get preview of the sync operation according to the set parameters. Your options consist of copying newer over older files, older over newer files, ignore changed or modified files from process, delete unchanged files, and choose different actions over added files. Pick whatever option you prefer and click ‘Sync’ and it will get to work!

MOBZync works on Windows XP/Vista/7 and comes in 32-bit and 64-bit versions. You can download it here.

About the author


Kevin is the Founder and Senior Editor of Tech Heavy. When he isn't writing about the latest tech tools he spends his days working in an IT department in Dubuque, IA. @kevincray


  • That looks kind of cool, and useful, especially the sync folders option. Is it free? Can you do more than 2 folders? That would be awesome. #TechHeavyPortal2Giveaway

  • That does look nice. It’s almost like a FTP program layout which keeps it nice and neat. Is it free though?

  • Nice will definitely check this out if it is free.


  • Yes it is free. Its fantastic when you have multiple external hard drives and thumb drives. I know longer have to worry about duplicates. Thanks for the post.

  • I get an error when I try to browse to a folder:  “Could not find file MSBuild.ExtensionPack.BizTalk.dll”  What is that and do I need it?  I couldn’t find any software prerequisites other than “Windows XP/7/Vista.”  I’m running the 32-bit version of Windows 7 Professional.  Thanks!

  • I want to compare the contents of my C drive with a flash drive to see which files are not on both media.
    Is there a utility?

  • This would be a great tool if permissions wasn’t an issue. I have tried to use this but keep getting an access denied error on the folders I’m trying to compare. Don’t see any way to get around it.