11 Best Disk Space Analyzer for Windows [Free, Free Trial]

by Madalina Dinita
Madalina Dinita
Madalina Dinita
Windows & Software Expert
Madalina has been a Windows fan ever since she got her hands on her first Windows XP computer. She is interested in all things technology, especially emerging technologies... read more
Affiliate Disclosure
  • Many complained about low disk space on their PCs, which is why a disk space analyzer software for Windows 10 can be a big help.
  • We provide you with an app that scans and analyses problems on your PC faster and more thoroughly than ever before.
  • Another free tool analyses the number of files and folders on your HDD and determines what's taking up the most disk space.
  • You can also take advantage of a program that graphically displays file and folder size data.
disk space analyzer windows 10

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Any person using a computer is well aware of the problem of low disk space. To resolve this issue, disk space analyzers are used for Windows 10. What is a disk space analyzer you ask?

It is a software utility for Windows used by many people around the world to kick out the problem of low disk space.

Disk Space Analyzer software visualizes the hard disk space usage on your personal computer by getting the size for each folder this also includes the subfolders and files or folders in a drive.

This software allows the user to understand the distribution of his hard disk usage between different folders or any other criteria specified by generating a graphical presentation.

Some of these software also offer the analysis of the history of size and count for each folder which helps in finding the growing folders.

There are numerous software offered on the Internet for disk space analysis for Windows. Some of them are mentioned below with their specifications.

What are the best Windows 10 disk space analyzer software?


The ultimate goal for disk analyzer software is to find and remove the space-hogging files and free some disk space.

CCleaner not only that it scans your system but also optimizes it so that it runs at its optimum speed at all times.

Apart from the constant health checks for your PC, it helps you keep all your apps updated and secure with only one click.

And if you’re still keen on clearing some space on your drive, this tool also automatically detects old and unused files so you can eliminate them quickly.

CCleaner also clears your browser search history and cookies so that all that data doesn’t fall into the wrong hands without compromising your identity.

Take a look at its most important features:

  • One-click software updates for your apps
  • Tune-up features for quicker startup times
  • Old and unused file detection
  • Automatic browser cache cleaner for advanced privacy
  • Easy to use and maintain


CCleaner is not just a space analyzer but a whole suite of useful tools to boost your PC.

Glary Utilities

Glary Utilities is a software which performs the basic functions of disk space analyzer and presents the disk space used by the user of the computer.

It shows all the information used by the files and folders using most of the space on your computer.

Then the information gathered is presented in a graphical form. This software also performs the task of system optimizer software.

This software scans and analyses your computer issues faster and more thoroughly than ever before.

Glary Utilities is a very popular and one of the most frequently recommended system utilities.

Let’s see some of its top features:

  • Automated options
  • Over 20 tools to maximize your PC performance
  • Simple and clean interface
  • Software update features
  • Duplicate files detection and cleaning

Glary Utilities

Analyze your disk space with a free tool that can also easily optimize your system.

Wise Disk Cleaner

Just like the tool above, Wise Disk Cleaner is not just a disk analyzer but it’s also more like a tune-up software with multiple functionalities.

For instance, it can clean the Internet history, cache files, and cookies from any of your browsers.

It also detects and cleans all other useless files generated by Windows System, components, and other applications that take up unnecessary space.

And because we’re talking about clearing some space, this program can be programmed to clean up the disk on a schedule.

But you can also set some filters to clean certain junk files and place a 1-click shortcut on your desktop so you can hit it whenever you feel like doing a little dusting up.

It’s a free software so you definitely need to check it out. It also has free regular updates to keep it in good shape.

Check out this software’s best features below:

  • Disk defragging feature
  • Scheduled automatic disk cleaning
  • One-clickc shortcut for customized cleaning
  • Quick scan and removal of unused files
  • Completely free
Wise Disk Cleaner

Wise Disk Cleaner

Tune-up your PC and remove any junk files from your drive with this excellent tool.


It is a freeware program for analyzing the disk space for your personal computer. And it even works on ancient configurations and Windows Vista.

This app rapidly scans the hard drive and exhibits the directories and files which occupy the most space on the drive. This app enables integration with the contextual menu of File Explorer.

Tree Size presents the data in detailed form as the name of files and folders, size, allocated size, number of directories, number of files, and total disk space used as a percentage.

Another great feature of TreeSize is that it can run from USB sticks without a hitch. That means it’s completely portable so you can use it on remote PCs.

Take a look at some of its best features below:

  • Available in 16 languages
  • Completely portable, without the need for installation
  • Works on low configurations and outdated Windows systems
  • Quick scanning and drive analyzing
  • Detailed report with graphical representations


TreeSize is the fast and fuss free tool to get the real picture of your computer disk space!


This app is not freeware but it comes at a decent price that is justified by its advanced features compared to other basic apps.

The developer of this app also offers a 30-day free trial. This app shows the data in the tree view and graphical view and these views can be configured by the user.

It is not easy as other apps and is mainly designed for the advanced users. It is also available as a portable app.

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One of its greatest features is the graphical interface. Each file or folder on a given drive is displayed in a box in the main window which makes it easy to compare to others.

Let’s see what are its most important features:

  • Multiple language support
  • Pop-up information about the file and folders
  • Comprehensive graphical interface
  • Advanced drive analyzing features
  • Free 30-day trial period


Leave the drive analyzing to a professional tool with advanced features for your PC.

Free trialVisit website



This software is also freeware and provides the function of disk analyzer software for windows.

It presents the data relating to the size of the files and folders graphically, making it stress-free for the user to comprehend. Space Sniffer displays the complete structure of the directory in a tree form, displaying the files and folders according to their sizes.

It is also easy to find the folders or files in software by just typing the first letter of the name of the folder or file you are trying to find. this characteristic helps in filtering the specific extensions and filenames.

Get Spaceniffer

Folder Size


This software is developed Mind Gems Softwares. It is freely distributed for the users. It displays the scanned data as a chart display making visual but need a flash player to show the data.

It also has the ability to scan a folder and show size, percent of space used, number of files, number of sub-folders, date, attributes and owner. It shows the data in different units as bytes, KB, MB or GB.

Get Folder Size



It is a portal utility software which offers the function of detecting the size of the hard disk used by the directories and space inside them.

This software is freeware and is compatible with all the versions of Windows and Linux.

Get Disktective



This is one the most popular free disk analyzer software which is designed to provide the information about the disk space used by different directories.

In this software user can customize the scans and or delete filters while scanning for the files.

It then represents the information in the form of a chart which can easily be understood by the user.

Get DiskSavy


Its developer praises WizTree as the fastest disk space analyzer and it promises to find files and folders that are taking the most space in record time.

The truth is that most analyzer software need to perform a deep scan that will take a lot of time and this software promises to do that in a few seconds.

That’s because WizTree reads the hard drive’s Master File Table (MFT) directly from the disk.

With this tool, you will also view the dimensions of the files visually so that you have the correct measurement of their size.

And the results can also be imported on a CVS file to analyze the data or keep a record of your files in time.

Get WizTree


This tool is great if you have an older PC. Although it hasn’t been updated in a while, it’s still great at what it does.

Its greatest feature is the clean and simple interface. If you want to find the biggest files, select the drive and click on the Scan Drive button.

You can also scan a certain folder or the common folders like the Documents, Music, Pictures and Video instead.

The scanning process will take between 5 and 15 minutes depending on the size of the drive and the number of files and folder on it.

In the end you will get a graphic report with the biggest size files and you have a button to bring you exactly at the file’s location using File Explorer.

Get TweakNow

Hard Disk Drive sizes are increasing as the technology is upgrading day by day, decreasing the need of deleting files and other personal stuff to save disk space on computers.

But whatsoever said, it is always a good idea to be aware of the game, music, images, or documents which eat up most of the disk space.

And after you find them, delete all the unnecessary files and other stuff to make up space for whenever you need it in the future.

It is hard to determine which of these is the best but users can rely on any of these to get what they want i.e to save disk space.

It will also be useful to take a look at our selection with the best disk management tools for Windows 10 to get your system in top shape.

What product did you choose and why? If you also have other products suggestions, leave them in a comment below.

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