Free Disk Space Analyzer Software for Windows

VISUALIZE LOCAL & NETWORK STORAGE

Desktop PCs, laptops and servers can quickly end up accumulating large quantities of unused, temporary, and duplicate files. Before you know it, you're out of disk space, backups are taking far too long to run, users can’t find what they need, and you're struggling to plan for the future.

You need a visual, interactive software tool to help you manage disk space. You need FolderSizes - the award-winning, network-enabled disk space analyzer for Windows. It can quickly isolate large, old, temporary, and duplicate files, or even show file distribution by type, size, attributes, age, depth, or owner. All with multiple export formats, command-line support, report scheduling, and much more.

FAR BEYOND FOLDER SIZES

Robust, built-in report scheduling with email delivery support
Trend analysis features show disk usage and folder sizes over time
Unique and powerful file system snapshot capability

Stunning disk space visualizations – bar, pie, and treemap views
Performance & scalability – analyze any file system with confidence
Network share discovery for servers, storage devices, and domains

FolderSizes goes far beyond the capabilities of existing disk space analysis tools with superior features and performance. Try it and see why so many customers depend on FolderSizes.

Search for files and folders by age, name, attributes, size, owner, & more
Quickly isolate largest files, oldest files, duplicate files, and temp files
Reports for file types, attributes, owners, sizes, names, ages, & depths

Export reports to MS Excel, PDF, HTML, CSV, and TXT file formats
Save, re-load, and compare folder size report data
Built by trusted leaders in secure Windows software

FREE basic edition! Reap the benefits of this powerful tool - fast!

Download Now Upgrade to Pro

“THE MODERN ALTERNATIVE TO WINDIRSTAT”

Faster, more efficient, and more secure than WinDirStat.
Accurate disk space analyze reporting and analysis – every time.
Advanced file system analysis engine built for real-world use.

A trusted and reliable solution for your disk space analysis needs.
In continuous development since 2003, FolderSizes keeps getting better.
Keeping software up-to-date and secure is our top priority.

WHAT OUR CUSTOMERS SAY ABOUT FOLDERSIZES

“FolderSizes is fast, and is a fantastic tool for tracking down drive space usage and identifying data that is a candidate to be archived offline.”

Fred Hunter, IT Admin
Washington State University

“This product is great, especially for us with small SSD drives, and needs to pay attention to available free space.”

Tommy Skaue, Senior Dev & Systems Engineer
Axdata
“FolderSizes outperforms every other disk space reporting tool that I've tried. And I've tried them all.”

Larry Mercer, Network Storage Admin

“Finally, a tool that offers meaningful disk space trend analysis.”

Dave Logan, Senior Systems Engineer
“We've been using FolderSizes almost daily for years now, and it has never let us down. Great tool!”

Shaun Mathews, Network Admin Level III

“FolderSizes allows us to improve our storage capacity planning.”

Martin Ryan, Systems Administrator
“Absolutely one of the most useful software products we've licensed in years.”

Jamie Daum, IT Admin

“FolderSizes is one of those rare applications that offers a lot of power at a reasonable price.”

Tyler Ferguson, Network Engineer & Administrator