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Disk Space Fan
What Disk Space Fan is
Disk Space Fan Pro analyzes Windows disk usage to help locate and remove large or unnecessary files. It displays storage as nested rings, with each sector sized according to folder contents. Filters can narrow the chart to file types such as images, and custom filters can be created from file extensions. After scanning, users can open, inspect, or delete files and folders from the chart. The utility also finds duplicate files and can leave a shortcut to the copy that remains after deletion. Hash-based duplicate scans are more accurate but can take longer; scans using file name, modification time, and size are faster but less accurate. The scan scope covers files and folders. Disk Space Fan Pro has no free plan, and unregistered use is limited to 15 days before registration is required. Its license allows installation on two computers, with use on one at a time. Registered users receive free technical email support. Minor upgrades and bug fixes are included; major upgrades are not covered by that policy.
Who it suits
It suits Windows users who need a visual way to inspect storage, filter file types, and remove duplicates or large files. The license and 15-day unregistered limit matter for ongoing use.
What it does well
- Nested-ring chart visualizes folder usage
- Custom extension filters narrow scans
- Duplicate removal can leave shortcuts
- Hash and faster scan options available
- Free email support for registered users
What to know first
- Windows desktop only
- No free plan
- Unregistered use limited to 15 days
- Major upgrades not included in stated policy
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Disk Space Fan Pro | Unregistered use limited to 15 days · License permits installation on up to two computers, with use on one at a time | On request |
As diskspacefan.net lists them, read 12 Oct 2026. The maker's own page has the final word.
Verdict
Disk Space Fan Pro offers visual disk analysis, filtering, file actions, and duplicate detection on Windows. Consider the registration requirement and older listed system requirements before adopting it.
Facts from Disk Space Fan's own pages
- Disk chart
- It represents disk usage as nested rings, with sectors sized in proportion to folder contents. · diskspacefan.net, 12 Oct 2026
- Duplicate detection
- It can find duplicate files and can leave a shortcut to the remaining file when duplicates are deleted. · diskspacefan.net, 12 Oct 2026
- Duplicate scan options
- Hash-based duplicate scans are more accurate but may take longer; scans without hashing use file name, modification time, and size and are faster but less accurate. · diskspacefan.net, 12 Oct 2026
- File actions
- After scanning, users can open, inspect, or delete a file or folder from the chart. · diskspacefan.net, 12 Oct 2026
- File filters
- Filters can restrict the chart to file types such as images, and users can create filters based on file extensions. · diskspacefan.net, 12 Oct 2026
- File-type breakdown
- Yes · diskspacefan.net, 23 Sept 2026
- Free plan
- No · diskspacefan.net, 23 Sept 2026
- Desktop platforms
- windows · diskspacefan.net, 23 Sept 2026
- Purchase
- The guide directs users to an online ordering form for pricing and purchasing details and says other payment options are available. · diskspacefan.net, 12 Oct 2026
- Purpose
- Disk Space Fan Pro analyzes Windows disk usage to help find and delete large, unnecessary files. · diskspacefan.net, 12 Oct 2026
- Scan scope
- Users can scan a drive or choose a folder to scan. · diskspacefan.net, 12 Oct 2026
- Support
- Registered users are entitled to free technical support by email, and the guide lists [email protected]. · diskspacefan.net, 12 Oct 2026
- System requirements
- The guide lists Windows XP Service Pack 2 or later, Windows Vista, and Windows 7 as system requirements. · diskspacefan.net, 12 Oct 2026
- Treemap view
- No · diskspacefan.net, 23 Sept 2026
- Trial limit
- The help guide says unregistered use is limited to 15 days and continued use requires registration. · diskspacefan.net, 12 Oct 2026
- Updates
- The license states that minor upgrades and bug fixes are free; major version upgrades are not included in that stated policy. · diskspacefan.net, 12 Oct 2026
Where Disk Space Fan stands on Freedom251
- Disk Space Analyzers#94 of 105