Freedom251 › Disk Space Analyzers
OpenDisk
What OpenDisk is
OpenDisk is free MIT-licensed open-source software for analyzing storage on Macs. It displays disk usage as an interactive sunburst chart, searches files by name as you type, and lets you collect selected items for deletion in the Collector. Collector deletion is permanent and bypasses the Trash, while the app blocks deletion of system folders, the home folder, and Library. OpenDisk shows connected external drives and supports Apple Silicon and Intel Macs running macOS 15 or later. Repeat scans replay filesystem events; the maker says these scans are 20 to 28 times faster than the first scan. Scans remain on the Mac, and the maker says the app collects no telemetry, analytics, or account data and makes no network requests while scanning. Distribution includes a direct download, a Mac App Store version, and a documented Homebrew command. The App Store build scans only drives and folders selected by the user because of sandboxing; the maker recommends the direct download for whole-Mac scanning.
Who it suits
It suits Mac users who want a visual view of files and folders consuming drive space. It is particularly relevant for users comfortable with permanent deletion and choosing between direct, App Store, or Homebrew installation.
What it does well
- Interactive sunburst disk-usage chart
- Searches filenames as you type
- Displays connected external drives
- No account, telemetry, or scanning network requests
- MIT-licensed open-source software
What to know first
- Requires macOS 15 or later
- Collector deletion bypasses the Trash
- App Store build scans selected locations only
- No paid tier or trial
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | Free forever · Interactive sunburst chart · One-click cleanup · Open-source MIT license · No account or telemetry | Free |
| OpenDisk | Free, forever · No trial · no paid tier · no locked features · no account | Free |
As opendisk.app lists them, read 22 Sept 2026. The maker's own page has the final word.
Verdict
OpenDisk offers a focused way to inspect and clean Mac storage while keeping scans local. Use caution with its permanent Collector deletion and choose the direct download if you need whole-Mac scanning.
Facts from OpenDisk's own pages
- App Store limitation
- The Mac App Store version only scans drives and folders selected by the user because of Apple's sandbox; the repository recommends the direct download for scanning the whole Mac. · github.com, 12 Oct 2026
- Cleanup
- Users can collect selected files for deletion and remove them together from the Collector. · github.com, 12 Oct 2026
- Deletion limit
- Deleting from the Collector is permanent and skips the Trash; the repository says the app blocks deletion of system folders, the home folder, and Library. · github.com, 12 Oct 2026
- Distribution
- The maker offers a direct macOS download and a Mac App Store version; a Homebrew installation command is also documented in the GitHub repository. · github.com, 12 Oct 2026
- External drives
- The app shows external drives when they are connected. · github.com, 12 Oct 2026
- External drive scans
- Yes · opendisk.app, 22 Sept 2026
- File search
- The app can search files on the drive by name, with results as you type. · github.com, 12 Oct 2026
- Free plan
- Yes · opendisk.app, 22 Sept 2026
- Incremental scans
- OpenDisk replays filesystem events to rescan changed folders, and the maker says repeat scans are 20 to 28 times faster than the first scan. · github.com, 12 Oct 2026
- License and contribution
- OpenDisk is MIT-licensed open-source software, and the maker invites users to report bugs or contribute pull requests on GitHub. · opendisk.app, 12 Oct 2026
- Network behavior
- The privacy policy says scanning makes no network requests and update checks fetch a static appcast file from the maker's site. · opendisk.app, 12 Oct 2026
- Platform requirements
- OpenDisk requires macOS 15 or later and supports Apple Silicon and Intel Macs. · opendisk.app, 12 Oct 2026
- Desktop platforms
- macos · opendisk.app, 22 Sept 2026
- Privacy
- The maker says scans stay on the Mac and the app collects no telemetry, analytics, or account data. · opendisk.app, 12 Oct 2026
- Purpose
- OpenDisk analyzes Mac disk usage and displays the drive as an interactive sunburst chart. · opendisk.app, 12 Oct 2026
- Scan scope
- files_folders · opendisk.app, 22 Sept 2026
- Support
- Email support is offered for questions and problems, and the maker says it usually replies within a couple of days. · opendisk.app, 12 Oct 2026
- Updates
- The direct-download version uses Sparkle, verifies update downloads with EdDSA signatures, and supports one-click installation. · opendisk.app, 12 Oct 2026
Where OpenDisk stands on Freedom251
- Disk Space Analyzers#55 of 105