AllDup Portable is a free utility application for PC developed by MTSD. It is the official portable version of the file duplicate removal tool called AllDup. It boasts the same fast and lightweight nature, but can be used without needing to install it on computers. This way, it can be copied to a portable USB flash drive and used on other machines on the fly.

Same, but made portable

Basically, AllDup Portable serves as an alternative version of the main app, designed for portability. Feature-wise, it’s the same, and it still makes it easy to look for file duplicates across various file types, which you can then delete, rename, or confirm if the content is the same. It can also work with different storage devices, from internal drives to external solutions.

During the process of cleaning up your drive and freeing up storage space, all deleted files will still be sent to the Recycle Bin as a safety measure, in case you accidentally remove a file and want to recover it. However, it also shares the same complicated user interface as its sibling, which will make it a bit hard to learn for beginners.

Bypass installation

In conclusion, if you like AllDup but prefer portable solutions over an installable version, then AllDup Portable is a must-try. It pretty much serves the same purpose, without needing to be installed on your PC. It saves up on space and can be taken with you for use on other computers. You just have to contend with the high learning curve, though.