Radial and treemap views
Choose rings or rectangles, drill into folders, and inspect a size-sorted file list with Quick Look for supported local files.
macOS原生磁盘分析
看清吞噬磁盘 的真凶。
NullDisk测量你的磁盘,把每一GB画成交互式放射图。层层深入,把不需要的文件收集起来,一键送入废纸篓。
macOS 14+ · Apple Silicon & Intel
已发现248 GB
扫描用时31秒
最大发现···
Xcode Archives~/Library/Developer · 214 items
48.2 GB Docker.raw~/.docker · 1 image
32.0 GB node_modules~/code · 37 projects
21.6 GB Illustrative scan preview. Sizes and scan time are example data.
Simple pricing
All features free.
$9.99 to remove reminders.
NullDisk maps local, SSH, and cloud storage and helps you review cleanup actions. Under our licensing model, every scan and cleanup feature is included in free personal and workplace use.
A personal reminder-free license costs $9.99 once. Organization-owned team licenses cost $9.99 per seat, once. No subscription.
See pricing and license detailsDisk maps in the terminal. Reports for scripts.
The standalone CLI adds a live terminal map, development reports, JSON/NDJSON output, and guarded cleanup. Published downloads are listed separately from the Mac app.
Explore NullDisk CLI →为什么选NullDisk
像魔法一样的清理。
不用猜,不用翻表格。看一眼地图,就知道你的GB住在哪里。
Local, SSH, and cloud
Scan a volume or folder, connect to an SSH host, or inspect supported cloud accounts through rclone. Sizes and actions depend on the source.
Development Cleanup
Review rebuildable output, eligible Git worktrees, and protected items. Ownership and Git evidence are checked again before removal.
Understand privacy
Local inventories stay on your machine. The Mac app sends anonymous usage telemetry without file names, paths, or contents; see the privacy policy.
就是这么简单
扫描。深入。释放。
苗条磁盘,只差三步。
Scan
Choose a local, SSH, or cloud source. Review live progress and any permission or incomplete-result indicators.
Inspect
Follow large folders in the radial map, treemap, or list. Preview local files and confirm the path and owner.
Review cleanup
Collect selected items and choose the intended action. Trash, permanent deletion, and backup before deletion have different recovery implications.
地图
把磁盘看作太阳系。
放射图一圈圈展开:中心是磁盘,周围是每个文件。颜色稳定,角度成比例——所见即所得。
- 悬停高亮,点击深入,点中心返回
- 颜色连接列表与地图
- 内置Quick Look、元数据与在Finder中显示
- 柔和动画,尊重减少动态效果偏好
诚实对比
Compare documented features.
Feature and pricing comparisons published by NullDisk. These are editorial comparisons, rather than independent performance benchmarks. Check each vendor for current details.
Scroll across to compare
| NullDisk | DaisyDisk | GrandPerspective | OmniDiskSweeper | |
|---|---|---|---|---|
| Map | Radial and treemap | Sunburst and file list | Treemap with configurable colors and filters | Largest-first column browser |
| Platform | Mac GUI; separate cross-platform CLI | macOS | macOS 14+ (current release) | macOS |
| Price | Free | Paid | Open source | Free |
| Cleanup | Review source and action: local Trash, explicit permanent removal, or backup/delete; remote and cloud actions depend on the destination. | Collector stages items, then permanently removes them after confirmation and a cancellation countdown. It does not use macOS Trash. | Delete files or folders from the view; review selection and deletion preferences. | Open or Trash selected files from the size-sorted browser. |
问答
值得了解。
Which systems does NullDisk support?
The native Swift/SwiftUI Mac app requires macOS 14 or later on Apple Silicon or Intel. The separate CLI supports terminal workflows on macOS, Linux, and Windows; see the available downloads.
What if a folder cannot be scanned?
Denied and incomplete locations remain marked. A partial result is not a complete inventory; grant the appropriate access and scan again where needed.
Does NullDisk remove files automatically?
You choose the files and removal action. Local actions include Trash, explicit permanent removal, and backup before deletion. Git-aware development cleanup rechecks current evidence before acting.
What information does NullDisk send?
The Mac app sends anonymous usage events without file names, paths, or contents. There is currently no in-app telemetry opt-out. Purchases process license/payment information separately. Read the privacy policy for details.
释放空间
让磁盘重新呼吸。
Explore your storage, review what you no longer need, and choose how to remove it.