NullDisk our pick
A native macOS disk-space analyzer with an interactive radial map. Native SwiftUI, allocated-size honesty, staged Trash-based removal, zero data collection.
Mukul Mehra (Klarity)
Switching from Klarity Disk? A private offline analyzer with treemaps and system monitoring. Here are five tools worth your Applications folder — honestly compared, with our native pick first.
A native macOS disk-space analyzer with an interactive radial map. Native SwiftUI, allocated-size honesty, staged Trash-based removal, zero data collection.
The tiny open-source treemap that shows your biggest files instantly.
The classic treemap visualizer, revived for Apple Silicon Macs.
A fast local treemap with uninstaller and live monitoring.
Privacy-focused free cleanup with offline visualization.
| NullDisk | Klarity Disk | |
|---|---|---|
| Visualization | Sunburst radial map | Treemap |
| Platform | macOS 14+ | macOS |
| Pricing | Paid | Paid |
| Open source | No (offline, zero-data) | No |
| Cleanup flow | Staged collector → Trash | Varies by tool |
| Klarity Disk | |
|---|---|
| Vendor | Mukul Mehra (Klarity) |
| Platform | macOS |
| Pricing | Paid — Paid one-time purchase (around $7 at time of writing) |
| Visualization | Treemap |
| Open source | No |
بهروزرسانی سپتامبر ۲۰۲۶ · قیمتها تغییر میکنند — لطفاً با فروشنده بررسی کنید. قیمت زمان نگارش: Paid one-time purchase (around $7 at time of writing).
For most Mac users it's NullDisk: native SwiftUI, a radial sunburst map, a staged removal collector, and zero data collection. Klarity Disk users who want treemap views and paid pricing will feel at home within minutes.
Yes — GrandPerspective and Disk Inventory X are free and open source with genuine treemap analysis. They lack NullDisk's collector workflow and sunburst map, but they find the biggest hogs fast.
Note the largest folders Klarity Disk flagged, then run the same scan in NullDisk and rebuild the cleanup in its removal collector. The full walkthrough is on our switching guide.
Klarity Disk is a capable tool for treemap fans on macOS. But if you want the whole job — see, stage, and safely remove — done natively on a modern Mac, NullDisk is the upgrade. راهنمای مهاجرت →