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Neodisk

github.com

Free plan macOSLinux
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Spec score 8.6 #8 of 105 in Disk Space Analyzers

What it is

Neodisk is a free, open-source disk space analyzer for macOS and Linux. It scans files, folders and applications, then presents storage usage in treemap, sunburst and outline views. Zooming, folder navigation, fuzzy search and keyboard navigation help you move through a scan. Analysis includes largest-file discovery, file-type statistics, an age heatmap and duplicate finding verified with content hashes. Neodisk is read-only: available file actions are revealing an item in Finder or Files, opening it and copying its path. Completed scans persist as snapshots that can be reopened. On macOS, the Changes tab records additions, deletions, renames and size changes since the previous scan. Optional Google Drive access reads quota and metadata without reading, downloading or changing file contents. macOS requires version 14 or later on Apple silicon or Intel. Linux AppImages support x86_64 and ARM64, but Linux lacks duplicate and changes tabs, cloud-drive scanning and incremental rescans.

Spec sheet

Purpose
Neodisk is a read-only disk space visualizer with treemap and sunburst views.Read 12 Oct 2026 · github.com
Product
Neodisk is a private, free, open-source disk space analyzer with treemap and sunburst views.Read 11 Oct 2026 · neodisk.app
Desktop platforms
macOSRead 23 Sep 2026 · github.com
Free plan
YesRead 23 Sep 2026 · github.com
Security
Google sign-in uses OAuth authorization code flow with PKCE, communications use HTTPS/TLS, and sign-in tokens are stored in the macOS Keychain.Read 11 Oct 2026 · neodisk.app
Privacy
Local scan data, file names, and other data the app reads stay on the device; the maker says there are no analytics, tracking, or data collection.Read 11 Oct 2026 · neodisk.app
Support
The security policy supports only the latest release and asks users to report vulnerabilities privately through GitHub Security Advisories.Read 11 Oct 2026 · github.com
License
Neodisk is licensed under GPL-3.0-or-later.Read 12 Oct 2026 · github.com
Maker
The GitHub repository is owned by tkslucas, whose profile identifies the account as Lucas Takayasu.Read 12 Oct 2026 · github.com
Analysis
Features include largest-file search, file-type statistics, an age heatmap, and content-hash-verified duplicate finding.Read 11 Oct 2026 · github.com
Application sizes
YesRead 23 Sep 2026 · github.com
File analysis
Features include largest-file discovery, file-type statistics, an age heatmap, and duplicate finding with content-hash verification.Read 12 Oct 2026 · github.com
File-type breakdown
YesRead 23 Sep 2026 · github.com
Google Drive
Neodisk can optionally connect to Google Drive and read storage quota and file metadata using the drive.metadata.readonly scope; it does not read, download, or modify file contents.Read 11 Oct 2026 · neodisk.app
Language support
The interface follows the system language and lists English, Spanish, French, German, Italian, Brazilian Portuguese, Japanese, and Simplified Chinese.Read 12 Oct 2026 · github.com
Linux limits
Linux currently lacks the duplicates and changes tabs, cloud-drive scanning, and incremental rescans; each Linux rescan is a full scan.Read 11 Oct 2026 · github.com
Linux requirements
The Linux app is native GTK 4 and libadwaita software, and the AppImage requires a system as new as Ubuntu 24.04.Read 12 Oct 2026 · github.com
macOS requirements
The macOS app requires macOS 14 or later and supports Apple silicon and Intel.Read 12 Oct 2026 · github.com
Network behavior
The security policy says Neodisk makes no network requests; the privacy page separately describes update checks and optional Google Drive access.Read 11 Oct 2026 · github.com
Platform requirements
The macOS app requires macOS 14 or later on Apple silicon or Intel; Linux AppImages are offered for x86_64 and ARM64.Read 11 Oct 2026 · github.com
Platform-specific features
The Changes tab, cloud-drive scanning, duplicate finding, and incremental rescans are macOS-only; Linux rescans are full scans.Read 12 Oct 2026 · github.com
Privacy and network
The security policy describes Neodisk as read-only and says it makes no network requests.Read 12 Oct 2026 · github.com
Read-only design
Neodisk says it never modifies or deletes user files, and offers Reveal in Finder or Show in Files, Open, and Copy Path as file actions.Read 12 Oct 2026 · github.com
Saved scans
Completed scans persist as snapshots that can be reopened instantly.Read 12 Oct 2026 · github.com
Scan history
Completed scans persist as snapshots, and the macOS Changes tab lists additions, deletions, renames, and size changes since the previous scan.Read 11 Oct 2026 · github.com
Scan scope
files_folders_appsRead 23 Sep 2026 · github.com
Search and navigation
Neodisk supports fuzzy search across a scan, keyboard navigation, and drilling into folders.Read 12 Oct 2026 · github.com
Security support
Only the latest release is supported for security fixes, and vulnerabilities should be reported privately through GitHub Security Advisories.Read 12 Oct 2026 · github.com
Treemap view
YesRead 23 Sep 2026 · github.com
Visualizations
The app includes treemap and sunburst views, plus an outline of selected files.Read 12 Oct 2026 · github.com

Plans and prices

Free Free Free and open-source disk space analyzer · GPL-3.0-or-later Read 12 Oct 2026 · neodisk.app

Every Neodisk plan and price →

Strong points and limits

Strong points

  • Treemap, sunburst and outline storage views
  • Read-only actions never modify or delete files
  • Content-hash verification for duplicate finding
  • Saved scans reopen as snapshots
  • No analytics, tracking or data collection stated

Limits

  • Linux lacks duplicates and Changes tabs
  • Linux rescans are full scans
  • macOS requires macOS 14 or later
  • Google Drive access is optional and metadata-only

Who it suits

Neodisk suits people who want a read-only visual map of local storage on macOS or Linux. macOS users get the broader feature set, while Linux users should expect full rescans and fewer analysis tabs.

Verdict

Neodisk combines visual storage maps with several file-analysis tools while keeping file operations read-only. Check the platform-specific differences before choosing it, especially if you use Linux.

Where Specifiction places it

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