Portable NTFSRatio

Portable NTFSRatio is a tiny and portable tool you can use to find out the compression rate of a folder and its subfolders, as well as to compress and decompress selected items. Although it may sound difficult to work with, it actually has some intuitive options for all user levels.

There's no installation involved, so you can extract the program files to a custom location on the disk or straight to a USB flash drive, in order to seamlessly run it on any computer with minimum effort and no previous setup. It doesn't modify Windows registry settings, need DLLs to run, or create extra files on the disk without permission.

Once launched, the app asks you to indicate a folder to compute its compression rate. It makes all the necessary calculations automatically, shortly revealing the size along with the compressed size and ratio of each file and subfolder.

Portable NTFSRatio gives you the possibility to easily compress or decompress an item by opening the right-click menu. Batch processing is supported, which means that you can compress or decompress multiple selected objects at the same time. The compressed ones are highlighted in blue.

You can refresh the directory contents if any changes were made in the meantime, as well as to copy or print the filelist. Help documentation is available.

It worked smoothly in our test, without crashing or indicating errors. It temporarily froze while compressing and decompressing items, tasks which were carried out in a decent amount of time. CPU and RAM usage was minimal, so it didn't hamper system performance.

Taking everything into account, Portable NTFSRatio delivers a speedy solution for compressing and decompressing files and folders after learning their compression rate.