7 best disk space analyzer for windows


Mainly Disk Space Analyzer is a graphical illustration of the windows explorer tree.

The software adds all your files and folders and organizes in well-ordered groups of boxes (or graphical shapes).

whereas the boxes symbolize files in these folders and the sizes of the boxes represent file size of the folders.

So users can easily set up the massive files that using your disk space and hurting your PC performance.

Here’s a 7 best and free disk space analyzer for windows.

1 WinDirStat

Windirstat - disk space analyzer for windows

WinDirStat is a free disk Space Analyzer and cleanup tool for Windows released under the GNU General Public License.

it lets you scan your entire hard disk or just a folder to analyze and show you all your files and folders in a tree list, such as KDirStat or SequoiaView.  – WinDirStat

2 SpaceSniffer


SpaceSniffer is one of the best disk space analyzers for windows that help you to understand the structure of files and folders on your hard drives.

it uses the treemap visualization layout to create a map, where you can quickly imagine how and where big folders and files maintain the space on your hard drive. The area of each rectangle is equal to that file size.

You need to double click on any rectangle to see the subfolders inside, that was the best features offered by SpaceSniffer. – SpaceSniffer

3 Folder Size

Folder Size for windows

Folder Size for Windows is free software that quickly adds a new column to your windows explorer.

it gives you detailed reports about your files and folders such as file size and their name etc..

The software automatically scans your hard disk in the background and caches the results to give you better performance. – Folder Size

4 Free Disk Analyzer

DiskAnalyzer - disk space analyzer for windows

With this tool, User can manage their files & folder and improve the disk space by moving the longest files on your disk.

You can quickly check your longest files such as videos, photos, and archives, and transfer them elsewhere.

However, You can also delete unnecessary files to optimize your disk space.

All your files and folders are shown in easy to use, user friendly interface with mind blowing visual graphs.


  1. Finds largest files within the selected drive or folder
  2. Finds largest folders by folder size, average file size, or number of files
  3. Presents data visually via graphs
  4. Looks and feels like part of Windows
  5. Safe product, no adware, spyware or malware

Disk Usage Analyzer

5 GetFolderSize

GetFolderSize - disk space analyzer for windows

GetFolderSize is a free window disk space analyzer to find which programs or files are taking more space on your PC.

For each folder, it shows you the total file size and the number of files and subfolders in the folders.

GetFolderSize will scan the selected drive and then show you a list with all the folders and their corresponding size.

In case you click on any of those folders, the contents might present at the right pane.

The analysis can take a while, especially if you’re working with large folders.


6 RidNacs

RidNacs - disk space analyzer for windows

RidNacs is a free disk space analyzer for windows that scan your local drives, network drives, or single directories and provides a tree view with a percentage bar chart column.

With this software, users can easily & quickly analyze and identify the longest files and folders on your PC.

That why it is one of the best disk space analyzers to clean up the disk and discover the space hogs on your hard drive.

This makes RidNacs to your best companion if you want to clean up the disk and you need to discover the space hogs on your hard drive.

The result of the scan can be exported in different formats (XML, HTML, CSV, TXT), so it could be printed or compared with future scans.

Besides all these benefits, RidNacs has an outstanding scan performance and it scores with a small memory footprint.


7 Scanner

Scanner disk space analyzer

The scanner is a lightweight, easy to use, portable disk space analyzer that uses a unique concentric pie chart to display the usage of your hard disk or other media.

The Pie Chart shows all major small and big size files and folders from all directory levels at once. – Scanner disk space analyzer

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