Side by side
DiskSizer vs SquirrelDisk
Both stand on disk space analyzers. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Windows
DiskSizer focuses on visual disk analysis, combining proportional charts with scanning methods tailored to HDDs and SSDs. Its free, open-source distribution and GitHub support make it accessible for Windows storage analysis.
Visit DiskSizer
Free plan LinuxMacWindows
SquirrelDisk provides visual storage maps and several cleanup choices across three desktop platforms. Local scanning, protected locations, and remote-storage support make it useful for investigating space usage without an account.
Visit SquirrelDiskThe facts
| DiskSizer | SquirrelDisk | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Windows | Linux, Mac, Windows |
| Lowest paid plan | Free or on request | Free or on request |
| Plans published | 1 | 1 |
| Maker | Not published | Not published |
| Website | disksizer.whhite.com | squirreldisk.com |
| On disk space analyzers | #63 of 105 | #59 of 105 |
DiskSizer: what it does well
- Interactive sunburst and treemap views
- Directory drill-down by storage size
- Drive-type-aware scanning
- Free forever and open source
- GitHub Issues support
What to know first
- Windows only
- No free trial is offered
- Performance figures are site-reported
SquirrelDisk: what it does well
- Sunburst and treemap disk-usage views
- Scans external drives and SSH machines
- Supports many rclone cloud storage services
- Cleanup includes secure erase and backup options
- Local scanning without account or sign-in
What to know first
- No file-type breakdown is listed
- No exportable reports are listed
- Automatic updates are enabled unless disabled in Settings
Alternatives to DiskSizer Alternatives to SquirrelDisk The whole list