Neodisk

Read-only disk space visualizer for macOS and Linux. Treemap and sunburst views on the NeodiskKit scan engine.
Download

Download

Download Neodisk.dmg and drag Neodisk onto the Applications folder.

Or with Homebrew:

brew install --cask neodisk

Requires macOS 14 (Sonoma) or later.

Linux

There are no Linux packages yet; build and install from source (below). The Linux app is a native GTK 4 / libadwaita application and needs GTK 4.14 and libadwaita 1.5 or newer (Ubuntu 24.04, Fedora 40, Debian 13, and later).

About

Read-only by design. Neodisk never modifies or deletes your files. Instead, Reveal in Finder (Show in Files on Linux), Open, and Copy Path are the only file actions. Delete and clean up safely in your file manager instead.

Native on each platform. The scan engine, tree model, treemap and sunburst geometry, statistics, and search are one shared Swift core; the macOS app is SwiftUI and AppKit, the Linux app is GTK 4 and libadwaita. See ARCHITECTURE.md.

Features

• Treemap: pinch to zoom, scroll to pan
• Sunburst: pinch to drill in and out
• Outline selected files
• Find largest files
• File type statistics
• Age heatmap, color the treemap by last-modified date
• Duplicate finder with content-hash verified duplicates
• Fast scanning with live progress
• Search: ⌘F fuzzy search over the entire scan
• Quick Look on spacebar (macOS)
• Arrow keys move the selection in both the treemap and the sunburst
• Drill into a folder with ⌘↓, drill back out with ⌘↑, or click folders in the breadcrumb bar
• Snapshots, completed scans persist and reopen instantly
• Changes tab lists what got added, deleted, renamed, grew or shrank since the previous scan (macOS)
• Show Package Contents: apps and bundles stay solid like in Finder until you expand them (macOS)
• Free and hidden space for volume scans
• Sidebar volumes show a kind-colored usage bar
• Auto-updates via Sparkle (macOS)
• Multilingual: UI follows the system language: English, Spanish, French, German, Italian, Brazilian Portuguese, Japanese, and Simplified Chinese

Build & Run

macOS

Requires macOS 14+ and a Swift 6 toolchain. No Xcode needed, the Xcode Command Line Tools are enough.

swift run -c release Neodisk    # build and launch directly
swift test                      # full test suite (engine + treemap + UI)

Linux

Requires a Swift 6.4 toolchain (swift.org/install) and the GTK development packages:

sudo apt install libgtk-4-dev libadwaita-1-dev libzstd-dev pkg-config   # Debian/Ubuntu
sudo dnf install gtk4-devel libadwaita-devel libzstd-devel               # Fedora
swift run -c release neodisk        # build and launch directly
swift test                          # core, shared model, treemap, cloud suites
Packaging/linux/install.sh          # install to ~/.local (menu entry, icon)

install.sh links the Swift runtime statically, so the installed app needs only GTK 4 and libadwaita, not a Swift toolchain.

Planned

• Windows: a native WinUI app over the same core (see

• Linux: Flatpak packaging, the duplicates and changes tabs

Credits

• Disk Inventory X by Tjark Derlien and

• Radix by Colin Kim (MIT), the scan

• DaisyDisk by Software Ambience and

• Cushion treemaps: van Wijk & van de Wetering, INFOVIS 1999. Squarified

License

GPL-3.0-or-later. See LICENSE, Radix attribution is preserved there.