Want to Know Where Your Disk Space Has Gone?

Get TreeSize Free! Even in the times of cheap terabytes a final truth remains: sooner or later every hard disk will near capacity or gone. And then its official - you need to optimize your disk space. We have the solution.

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Efficient Disk Space Reporting
Scan your volumes in seconds and see the size of all folders including all subfolders and break it down to file level.
Quickly Clean Up Your Disks
With the integrated Windows Explorer context menu and the usual keyboard shortcuts you can quickly get rid of unwanted stuff.
Stunning visualization
See the distribution of the used disk space at a glance with our customizable treemap chart.
See All TreeSize Free Features

Visual Tour

Easily find large folders or subfolders in the Windows Explorer-like tree view.
 

The hierarchical treemap chart in 2D shows you which file types are found in which folders. It will also visualize the size of each folder for easy disk space management.

You prefer a more three-dimensional view? Simply switch to the 3D treemap chart!

If your eyes react sensitively to brightness, the Dark Mode offers a welcome alternative.  You can access the proven functions as usual via a user-friendly interface.

A touch optimized interface for your comfort (requires Windows 8 or higher).

Different Versions for Different Requirements

Free
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Home User
For private use in a non-commercial environment.
$0
For Free
Download

 

  • One Click Visualization of Storage Space Allocation down to File Level
  • View a Treemap Chart of used Disk Space
  • Create PDF Reports of Disk Space Usage
Personal
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Power User
Ideal for advanced users, smaller businesses and freelancers
From $28.95
Pricing Details
Try For Free

14 Day Free Trial

  • Everything in Free
  • Filter for Top Largest Files and Identify Space Hogs
  • Search for Duplicate Files and Deduplicate Redundant Files
  • Compare your Disk Space Usage over Time
Professional
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Commercial User
For businesses managing large or distributed networks across multiple offices
From $64.95
Pricing Details
Try For Free

14 Day Free Trial

  • Everything in Free + Personal
  • Scan your Windows Servers
  • Analyze your Networks Drives in Windows Corporate Networks
  • Run Semi Automated Storage scans
  • Create Reports in Excel, HTML, Email and More Formats
Compare the TreeSize Editions Now

References

I love this program. It always works well, and it does exactly what I need it to do. Helps me keep my computer very clean.

Willy Korp, Korp Consulting, Inc. / Korp Technology Services

I just downloaded TreeSize Free and am most impressed with how much you have built into the free version of your software. It is clearly a well engineered and carefully thought out product that will be very useful for finding clutter on my hard drive. It contains far more value than I expected, and I compliment you on a product well done.

Charles E. Dial, Software Developer

I was using Treesize to manage the space on my drive after having installed the Android devkit, which resulted in my system downloading about half-a-dozen versions of the SDK, along with about six thousand version of Java!! Absolute bloomin' chaos.

Thanks for Treesize. I haven't had to use it for about a decade, but it's good to know it's still around, and works as wonderfully well as it every did.

A life saver!!

Jayenkai, Game Developer on AGameAWeek.com

4.5 out of 5 stars: Treesize users rated the tools meeting of requirements (96% user satisfaction) and its ease of use (96%) as the tool’s two best features.

G2 Crowd, business solution review platform

Pro Tips Around File & Data Management

Explore our top blog posts packed with pro tips from 25+ years of experience.

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Professional

Get More With the Feature-Rich Professional Edition

 

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Various charts and statistics: Get even more insight on your disk usage

Get detailed statistics on file types and file owners. A Top 100 list shows the largest files at a glance. Compare with previous states and see the size increases. Additional bar and pie charts give more insight.

Analyze disk usage in detail
Discover TreeSize Professional

Export

Export all reports and charts

Export all collected data, statistics and charts into various formats. Create a stunning PDF report or export to an Excel document for further processing or calculations.

Various export formats

Customizable File Search

Find and manage files

The TreeSize File Search allows you to search for files using various search criteria and perform versatile operations like move, archive, copy or rename on them.

Search without limits

More Information and Documents

Professional Disk Space Management
TreeSize Free v4.5.3
TreeSize Free v4.4.2
TreeSize Free v3.4.5
TreeSize Free v2.4
TreeSize Free v2.1