macOS Utility

Preview Folder Size Instantly from Finder

Select a folder in Finder, press the Space Bar, and instantly open SpacePeek in Quick Look. A high-performance Rust engine and polished SwiftUI interface make folder size previews feel immediate, clear, and effortless.

Built for macOS 14.0 or later. Private by default, with no uploads, analytics, or hidden cloud processing.

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Fast Local Scanning

Press Space on a selected Finder folder to see counts and storage details without opening a heavier disk utility.

Storage Visibility

See total size, item counts, and the folders or files using the most space so cleanup decisions are easier.

Smooth Navigation

Move through nested folders and inspect deeper storage distribution inside the same Quick Look preview.

Local-First Privacy

Folder contents and scan results stay on your Mac. SpacePeek does not upload, track, or process your files remotely.

Get SpacePeek

Ready to inspect folder size with one Space Bar press?

Get SpacePeek

How It Works

Three Steps to Instant Folder Insight

1

Select a Folder

Choose any folder in Finder that you want to inspect.

2

Press the Space Bar

Quick Look opens SpacePeek directly from Finder with no extra setup.

3

Inspect the Breakdown

Review the size breakdown, item counts, and top space consumers right away.

App Preview

Screenshots

Browse the Quick Look experience and see how SpacePeek turns folder storage into something easy to understand.

SpacePeek showing a ring chart visualizing folder distribution in Quick Look
See how folder size is distributed across major items with a clear ring chart.
SpacePeek displaying total size and item counts for a selected folder
Total size and item counts appear instantly for the selected folder.
SpacePeek highlighting the largest files and folders inside a folder preview
Spot the files and folders using the most space before you dig deeper.
SpacePeek navigating deeper into subfolders to inspect storage distribution
Move deeper into subfolders without leaving the preview.
SpacePeek showing polished macOS interface details for disk usage preview
The SwiftUI interface keeps dense storage information calm and readable.
SpacePeek presenting a folder summary with visual storage insight and counts
Quick summaries help you understand folder structure before opening it.

Support URL

Need Help?

Email Support

Contact the developer directly for bug reports, troubleshooting help, or general support.

Send Email

GitHub Issues

Open a public issue for reproducible bugs, edge cases, or feature requests.

Open a GitHub Issue

Requirements & Privacy

Requires macOS 14.0 or later. All processing happens locally on your Mac, with no uploaded folder contents or scan results.

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Quick FAQ

How do I launch it? Select a folder in Finder, then press Space.

Does it upload data? No. SpacePeek scans and previews locally only.

Where can I report issues? Use email support or GitHub Issues.