A fast, native macOS disk space analyzer that makes crowded drives easy to understand. Scan folders and volumes, explore where your storage is going, compare results over time, and safely clean up — all without leaving the app. Visit the Radix website to learn more!

Storage fills up quietly. Radix makes it obvious where it went — no Terminal commands, no waiting through scans that crawl forever. Point it at a folder, sit back, and explore a clean visual breakdown of directories and files.

It's built with Swift and SwiftUI, designed to feel like a natural part of macOS.

Switch between sunburst and treemap views to understand how space is distributed. Hover over an item to inspect it, then double-click a folder to drill deeper.

Sunburst	Treemap

Use the sortable file browser to inspect items, search the current focus or the entire scan, and filter by item kind or allocated size. Preview files with Quick Look and navigate scans with breadcrumbs and back/forward navigation.

Compare two scans to see which files and folders grew, shrank, appeared, or disappeared.

Add items from the disk map, file browser, or inspector to the Discard Pile. Review everything together before deciding whether to move anything to the Trash.

Export completed scans as compact, losslessly compressed .radixscan snapshots and reopen them later as read-only results.

• Fast, iterative file-system scanning with live progress
• Faster follow-up scans by reusing previous results when possible
• Automatic summarization of directories containing thousands of tiny files
• Custom scan exclusions for paths you do not want to include
• Optional free-space display in disk maps
• Smart Locations for mounted volumes, Home, Desktop, Documents, Downloads, Library, and Applications
• Recent scan history in the sidebar
• Detailed inspector with sizes, access information, parent directory, and largest children
• Usage stats showing scans completed, data scanned, scan speeds, chart interactions, and cleanup totals — all stored locally on your Mac
• Reveal in Finder, Copy Path, Move to Trash, and more actions
• Drag and drop a folder into the window to start scanning
• APFS-aware storage accounting that avoids double-counting full clones and detects partial clones
• Welcome flow with an onboarding and an interactive tour of the app
• Available in English, German, Spanish, French, Italian, Russian, and Simplified Chinese
• Automatic updates powered by Sparkle

Radix works out of the box on any folder you can already access. For some folders, the app may require Full Disk Access. Radix detects when files are skipped due to permissions and guides you through enabling them in System Settings.

Radix requires macOS Sonoma 14 or later.

brew install --cask radix

Download the latest version from Releases or the Radix website, then drag Radix into your Applications folder.

git clone https://github.com/colinvkim/Radix.git
cd Radix
swift test

xcodebuild \
  -project Radix.xcodeproj \
  -scheme Radix \
  -configuration Debug \
  -destination 'platform=macOS' \
  build

Radix/
├── Radix/                    # App and core source code
│   ├── App/                  # App entry point, commands, and window management
│   ├── Models/               # Scan targets, node records, snapshots, and safety models
│   ├── Services/             # Scanning, archives, comparison, geometry, and formatting
│   ├── ViewModels/           # Application state and UI coordination
│   ├── Features/
│   │   ├── Comparison/       # Scan comparison setup and results
│   │   ├── DiscardPile/      # Cleanup candidate review
│   │   ├── FileList/         # Sortable file browser
│   │   ├── Inspector/        # Single- and multiple-selection details and actions
│   │   ├── Onboarding/       # Welcome flow, permission guidance, and workspace tour
│   │   ├── Settings/         # Scan, visualization, and app preferences
│   │   ├── Sidebar/          # Smart Locations, recent scans, and Discard Pile
│   │   ├── Visualization/    # Sunburst and treemap views
│   │   └── Workspace/        # Main scanning and exploration interface
│   └── Shared/               # Reusable SwiftUI components and helpers
├── RadixCoreTests/           # Unit, integration, and benchmark-style tests
├── Package.swift             # RadixCore Swift package definition
└── Radix.xcodeproj/          # Complete macOS app project

Contributions are welcome! Here's how to get started:

1. Fork the repository and create a feature branch. Before getting started, consider reviewing the developer documentation above for build instructions and an overview of the project’s structure and architecture.
2. Make your changes and add or update tests where appropriate. Keep them focused and well-documented.
3. Run swift test.
4. Open a pull request explaining what changed and why.

Use Conventional Commits for commit messages and PR titles. If you're tackling something big, consider opening an issue first so the approach can be discussed.

Radix is available under the MIT License.