See folder size and storage usage instantly from Finder Quick Look.
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Download on the Mac App Store · Official Website · Watch the Video
SpacePeek is a macOS Quick Look extension for folders. Select a folder in Finder and press the Space bar to see its total size, file and folder counts, largest contents, and storage distribution—without opening a separate disk utility.
- Instant Finder previews. Inspect a folder from the same Quick Look workflow you already use.
- Clear storage context. See the largest items and understand where the space goes.
- No background index. SpacePeek scans only when you ask it to.
- Private by design. Folder analysis stays on your Mac, with no uploads or tracking.
- Read-only. SpacePeek reports what it finds without modifying or deleting your files.
- Native interface, fast core. Built with SwiftUI and a high-performance Rust scanning core.
In a real-world scan, SpacePeek analyzed more than 1.6 million items in 4.72 seconds.
Captured with SpacePeek v1.2 on an M4 MacBook Air; directory names in the screenshot have been anonymized. This is a real-world result, not a standardized benchmark. Scan performance varies with hardware, storage, permissions, cache state, and folder structure.
▶ Watch the SpacePeek demo on YouTube
| Explore folder contents | Understand developer projects |
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SpacePeek is useful for checking Downloads, inspecting project directories, investigating storage usage, and understanding unfamiliar folders before deciding what to move or remove.
SpacePeek is free to download and lets you inspect a folder's first level. SpacePeek Pro is an optional one-time purchase that unlocks unlimited folder drill-in directly from Quick Look.
- macOS 14.0 or later
- Available from the Mac App Store
SpacePeek scans folders locally when you open Quick Look. It does not collect, transmit, or store personal data and does not include third-party analytics or crash-reporting services.
Read the full SpacePeek Privacy Policy.
This repository is the public home for SpacePeek product documentation, screenshots, and support information. SpacePeek is proprietary software distributed through the Mac App Store; its application source code is maintained privately.
- Issues: Report a bug or suggest a feature
- Support guide: SUPPORT.md
- Website: spacepeek.space
- Email: support@spacepeek.space
- Mac App Store: Download SpacePeek
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