10 Best Disk Space Analyzers for macOS

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It’s only a matter of time before you encounter the dreaded “Your disk is almost full” message. To deal with this problem, you might attempt to free up disk space on Mac or think of purchasing an external disk. While there’s nothing wrong with it, but sifting through each file manually will be time-consuming. So, to make things easy and help deal with Mac storage, we will enlist the best disk space analyzer and Mac storage manager.

your disk is almost full

These storage manager utilities, by scanning your Mac, will help find out what exactly is taking up space.

So, without any delay, let’s know more about the best disk space analyzers for Mac.

Additional Information:

How To Manually Track Available Storage Space On Mac

1. Click the Apple menu > About This Mac > Storage Tab.
2. You will now see a colored bar, hover the mouse, and see which content is taking up most disk space.

mac storage

In addition to this, you can also head to Activity Monitor and look for available space. To do so, press Cmd+Space > select startup volume > check for the amount of used space > click Info button in the toolbar.

You’ll now be able to see details like Available space, Purgeable space, and free space.

macintosh hd storage

Besides this, you can also right-click Macintosh HD disk icon > Get Info. This will give all the information related to Available and Used disk space.

macintosh hd capacity

Now that you know how to check disk space on Mac manually let’s learn how to manage disk space using Mac disk usage analyzer tools.

Best OS X Disk Space Analyzer and Storage Manager Apps to Free Up Disk Space on Mac

1. Disk Analyzer Pro – Excellent macOS disk usage analyzer

Disk Analyzer Pro

Pricing: Free

Compatible OS: Mac OS X 10.8 and higher & Windows

Disk Analyzer Pro is one of the best Mac storage analyzer tools. This tool is available for free, which helps view drive consumption by file size, type, date, ownership, and attributes. Not only this, but Disk Analyzer Pro also identifies large files and folders, gives options to view the top 100 files by size and top 100 oldest files, thereby helping delete and de-clutter unwanted files from Mac.

Overall, it is a great tool that helps free up disk space on Mac and recover disk space in no time.


2. DaisyDisk – state-of-the-art disk space analyzer for Mac

Pricing: $9.99 Free Trial Available

Compatible OS: macOS 10.10 and higher

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DaisyDisk is a stylish Mac check disk space tool that scans the disk and shows all files and folders in an interactive visual map. You can preview the contents of the file and delete it if you don’t need it anymore.

Moreover, all the changes made to the Mac are updated in real-time; this helps keep a check on the amount of disk space recovered.

Overall, DaisyDisk is an excellent Mac disk analyzer that helps recover storage space occupied by unwanted files. Using its free version, you can sweep hard disk drives and use the space intelligently.


3. GrandPerspective – Easy to Use Mac Disk Usage Analyzer


Pricing: $2.99 (AppStore) Free when downloaded from Sourceforge

Compatible OS: macOS 10.10 and higher

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GrandPerspective is a nifty tool to check the storage on Mac. Using it, you can manage your disk, spot files & folders taking up storage space, and free up disk space on Mac. For visualization, it uses a treemap, and each file is shown as a rectangle with an area proportional to the file’s size.

In general, it is a good option for novice users that helps free up space and manage data. Upon launch, the disk space manager asks the user to select a folder or disk that needs to be scanned. Once done to view the scan results hover the mouse pointer over the block; this will display the file name and size at the bottom of the window.


4. Disk Inventory X – Professional Mac Disk Space Analyzer


Pricing: Free

Compatible OS: macOS 10.3 and later

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Disk Inventory X is another free disk analyzer tool for Mac. The app via treemap shows an overview of all disks in a machine. The size of each file is specified, and more specific data about each file is also available. The data is presented in an organized list that helps analyze the entire disk. To use this storage organizer utility, open the File menu > select the drive/folder to scan. Once the scanning is done, you will see a graphical treemap with information about storage space. Using this information, you can look for the largest files and delete the unwanted ones.


Also Read: Top 10 MacBooster Alternatives For Optimizing Your Mac

5. OmniDiskSweeper – Mac Check Disk Space Utility


Pricing: Free

Compatible OS: 10.5 and higher

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OmniDiskSweeper is also a free disk space utility for finding and deleting big files on Mac. Upon launch, select the drive > click Sweep Selected Drive > once done click on a folder, and head to any file that takes significant space. This functionality makes OmniDiskSweeper a great tool to free up disk space.

Also, based on the macOS you are using, the application offers different download versions.


6. Disk Cartography – Clever Disk Space Analyzer for Mac

Disk Cartography

Pricing: Free

Compatible OS: macOS 10.8.5 and higher, later 64-bit processor

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When you are dealing with low storage space on Mac, Disk Cartography proves to be a beneficial macOS disk space analyzer. The application helps identify large files and folders that take up a large chunk of disk space. Moreover, the application scans the content of individual directories, USB sticks, external disks, etc. Once the scanning is done, the application shows a tree view representation of the analyzed folders, displaying the largest files and directories.

To sum up, Disk Cartography is an excellent Mac Disk Space analyzer.


Also Read: 11 Best App Uninstaller For Mac to Remove Unwanted Apps

7. Disk Space Analyzer – Powerful Mac Storage Analyzer

Disk Space Analyzer

Pricing: $ 9.99 Free trial available

Compatible OS: macOS 10.10 and above

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Another powerful storage checker for Mac that helps free up disk space and organize data. This utility allows you to find the largest file on Mac. This means if you encounter Startup Disk is almost full, you can quickly free up disk space using this disk cleaner utility. The application scans different hard drives and even hidden system files that take up the most space on your disk.

To recover space, you need to select the disk and scan the system for the bulkiest files. Nonetheless, Disk Space Analyzer also scans cloud storage folders.


8. WhatSize – Disk space checker and manager


Pricing: $29.99

Compatible OS: macOS 10.12 and higher

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WhatSize is a disk space manager for Mac that helps check disk usage and find the largest files occupying unnecessary space on the hard disk. Using this simple shareware tool, you can view all the files stored on Mac and free up disk space.

Moreover, this intelligent tool suggests ways to reclaim storage space and remove duplicates that clutter Mac and consume unnecessary space.


9. Disk Drill

Disk Drill

Pricing: starts at $89.00

Compatible OS: macOS 10.12 and higher

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Disk Drill for Mac is an excellent disk space analyzer that allows you to see hard drive usage and locate items that can be deleted or moved to another drive to free up space on Mac.

The scan results are presented intuitively; this helps manage data efficiently.

Besides, Disk Drill allows the user to select different views, according to file types. Also, you can use this tool to recover deleted files.

This means it is a comprehensive disk space analyzer and data recovery tool for Mac users.


Also Read: How To Clean Your Mac For Smooth Performance – Step By Step Guide

10. NCDU


Pricing: Free

Compatible OS: macOS 10.10 and higher

Download Now

Unlike the other OS X disk space analyzer apps discussed above, this one is different. Ncdu is a command-line check disk space usage analyzer that uses the Ncurses interface. Designed to find space-hogging files on remote servers, this tool also works well on desktop systems.  Is based on du command and is much faster.

Once installed, launch Terminal and type ncdu/ to start scanning. To navigate through the items, use arrow keys.


Bonus Tip:

If you are not comfortable installing and using third-party apps, try using the Mac search function within the Finder. This will help locate large files. To use it, you just need to set a file size to look for, and you are all set.

mac applications

The finder search function will easily locate large files for you.


This is it; you can use any of the utilities explained above to analyze the disk. Which one is the best? The answer depends on the skills you possess.  Of course, all of them will help free up disk space on Mac. But if you are looking for an easy to use solution Disk Analyzer Pro is the best storage analyzer for Mac.

In addition to this, if you know of any other great disk space analyzer for Mac, do let us know in the comments section.

FAQs: Best Disk Space Analyzers for mac

1. How do I analyze disk space on a Mac? 

To analyze disk space on Mac, you can use Disk Analyzer Pro offered by Systweak. Once installed, launch the app, select the drive to scan. Upon scan completion, analyze the results, and remove the largest & oldest files that are no longer required and take unnecessary space. This will help free up space and optimize Mac in no time.

2. How do I find the largest files on my Mac?

To find the largest files on Mac, you can either use Finder and search for files using File Size criteria. Or can use Disk Analyzer Pro. The app offers a unique feature to enlist the top 100 largest files.

largest files on my Mac

3. How much free disk space should a Mac have? 

As a rule, Mac should have a minimum of 6-10 GB free space. This much free space is required to install updates and let Mac function smoothly.

4. How do I find out what’s taking up my disk space?

To find out the apps taking up most storage space, you can use disk space storage analyzer tools or use the Storage manager. But using a storage manager will not be beneficial as you will have to sift through each file manually. Hence, we recommend using Disk Analyzer Pro.

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