RidNacs v2.0.3 Review

A Full Review of RidNacs, a Free Disk Space Analyzer

RidNacs is most likely the easiest to use free disk space analyzer tool you'll ever find. Like similar programs, it's used to find out which files are taking up the most disk space on your hard drives.

Although the program interface looks very similar to TreeSize Free (another disk space analyzer), RidNacs is void of the long list of features, and excess buttons, that can make it hard to use.

This review covers RidNacs version 2.0.3. If this isn't the latest version, please let me know so that I can keep this page updated.

My Thoughts on RidNacs

RidNacs v2.0.3

Like I mentioned in the intro above, I like RidNacs because of how simple it is to use. There are just a few buttons you can select because the program is built for one simple reason: to show you the largest folders and files on your computer.

The program's interface is structured much like Windows Explorer, where you can click through the folders until you see the files inside them. But unlike Windows Explorer, the size of the folders are displayed for you instead of just the name, with the largest ones at the top for easy reading.

Opening a folder shows the largest files so you can determine which you'd like to delete or move off to save disk space.

If you want to just scan a single folder with RidNacs, you can do it, but you can also search through lots of folders at once by scanning an entire hard drive, flash drive, or other removable storage device.

Now don't get me wrong, sometimes a more advanced tool is what you're after; something that has a search tool, rules you can apply to filter the results, and so forth. On the other hand, if simple and to the point is what you're after, RidNacs is a great choice.

RidNacs Pros & Cons

Because it's such a simple program, RidNacs is missing some of the features found in its competitors, but that doesn't mean it's not useful:


  • Really easy to work with
  • Lets you export the results to a file
  • Interface is free from clutter
  • Also supports removable storage devices
  • Can optionally be integrated with the right-click context menu in Windows Explorer
  • Scans single folders as well as entire hard drives


  • Works only on Windows
  • Only supplies one perspective of the results
  • Doesn't include a search tool
  • Cannot delete files/folders from within the program
  • The download page is in German

More on RidNacs

Here's some more information on RidNacs' features:

  • Can be installed to Windows 10 down through Windows XP
  • Results can be sorted by name, size, percent of total usage, and the number of files in the folder
  • Right-clicking any folder or file in RidNacs lets you view it in Windows Explorer
  • A single directory can be re-scanned if the files in it have been changed since the scan was made so that you don't have to re-scan the entire parent folder
  • Selecting a folder from the results shows the total size of the folder at the bottom of the RidNacs program
  • Size units change dynamically to make it easy to understand how much space is being used
  • RidNacs keeps a list of recently used directories in its File menu
  • The results of a disk space analysis can be saved to the CSV, TXT, HTML, or XML file format

Below is the download link for RidNacs, but I recommend reading our reviews of Disk Savvy, JDiskReport, and WinDirStat if you're looking for a free disk analyzer program that has some additional features.