JDiskReport at a glance
A good fit for users who want cross-platform disk statistics and already use Java.
| Feature | JDiskReport |
|---|---|
| Vendor | JGoodies (Karsten Lentzsch) |
| Platform | macOS, Windows, Linux (Java) |
| Pricing | Free — No-charge, ad-free freeware; this does not mean open source. |
| Visualization | Overview statistics charts and detail tables |
| Open source | No |
| Cleanup | Use the statistics to guide file review; the cited overview does not specify removal semantics. |
| Reports and switching | Preserve any saved scan files supported by your version and keep important table entries. NullDisk does not import JDiskReport scan files. |
Strengths and considerations
Strengths
- Disk usage statistics in charts and tables
- Runs across Java-capable desktop systems
- Free without ads or expiry
Considerations
- Requires a compatible Java runtime
- Freeware rather than an open-source project
- Check the manual for report storage and file-management actions
How cleanup works
Use the statistics to guide file review; the cited overview does not specify removal semantics. Confirm each file’s path and purpose before removing it. Items in Trash still occupy storage until it is emptied.
How NullDisk compares
A native Mac disk analyzer with radial and treemap views, SSH/cloud sources, and development cleanup. Consider it for Git-aware development cleanup or a workflow spanning local, SSH, and cloud storage. The separate CLI provides terminal browsing and structured reports.
All direct Mac features are free with reminders; an optional one-time license removes them.
NullDisk has no content-based duplicate finder. Its Mac app sends anonymous usage telemetry; read the privacy policy if that affects your choice.
Compare JDiskReport and NullDisk → · Other alternatives → · Reports and switching →
Questions about JDiskReport
Who should choose JDiskReport?
A good fit for users who want cross-platform disk statistics and already use Java.
Is JDiskReport free?
No-charge, ad-free freeware; this does not mean open source.
How does JDiskReport handle deletion?
Use the statistics to guide file review; the cited overview does not specify removal semantics.
Can I export a scan from JDiskReport?
Preserve any saved scan files supported by your version and keep important table entries. NullDisk does not import JDiskReport scan files.
Related tools
- LumaDisk — Mac/Windows users wanting maps, duplicates, and build-cache discovery.
- Diskaroo — Users wanting one account-based analyzer across Mac, Windows, and Linux.
- SquirrelDisk — People wanting a free open-source GUI across desktop systems and remote storage.