Which fits your needs?
Klarity Disk: Mac users who prefer rectangular views and age-based browsing.
SquirrelDisk: People wanting a free open-source GUI across desktop systems and remote storage.
Features, pricing, and workflow
Scroll across to compare
| Feature | Klarity Disk | SquirrelDisk |
|---|---|---|
| Best fit | Mac users who prefer rectangular views and age-based browsing. | People wanting a free open-source GUI across desktop systems and remote storage. |
| Visualization | Treemap, icicle view, and Large Files list | Sunburst, treemap, file list, and duplicates |
| Platforms and requirements | macOS | macOS, Windows, Linux |
| Pricing and editions | Vendor lists $6.99 once through the Mac App Store. | Free; AGPL-3.0 source published on GitHub. |
| Open source | No | Yes |
| Native macOS UI | Yes | Cross-platform interface |
| Cleanup workflow | Moves items to Trash; folders of 1 GB or more require slide confirmation. | Collector offers Trash, permanent removal, secure erase, or backup before deletion. |
| Reports and portability | Report export is not established by the cited overview. Preserve paths or screenshots if you need a record outside the app. | The current overview does not establish an interoperable scan-report format. Preserve paths, duplicate decisions, and remote source settings separately. |
Klarity Disk: what stands out
A good fit for Mac users who prefer rectangular views and age-based browsing.
Klarity Disk: strengths
- Treemap and icicle layouts with age-based colors
- Large Files list and hidden Library visibility
- Trash-only removal with extra confirmation for large folders
Considerations
- No sunburst in the documented view selection
- Age indicates modification history, not whether a file is unnecessary
- System-folder guards intentionally limit removal
SquirrelDisk: what stands out
A good fit for people wanting a free open-source GUI across desktop systems and remote storage.
SquirrelDisk: strengths
- Live maps and a staged removal collector
- Content-based duplicate search
- SSH and rclone-backed cloud storage
Considerations
- Uses a cross-platform Rust interface rather than SwiftUI
- Permanent deletion and secure erase require deliberate review
- Cloud/SSH actions depend on provider and remote-system support
For a useful comparison on your own drive, match the scan root, access permissions, and size mode. Chart style changes how you explore the results; it does not by itself establish measurement accuracy.
Common questions
When should I choose Klarity Disk?
A good fit for Mac users who prefer rectangular views and age-based browsing. Vendor lists $6.99 once through the Mac App Store.
When should I choose SquirrelDisk?
A good fit for people wanting a free open-source GUI across desktop systems and remote storage. Free; AGPL-3.0 source published on GitHub.
Will both apps show the same size?
Not necessarily. Match the scan root, permissions, exclusions, and logical/allocated-size mode. Hard links, APFS clones, snapshots, sparse files, and cloud placeholders can change totals. A reported size is not a guaranteed amount recovered after deletion.