Radix

Radix

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 (opens in a new tab) to learn more!

Why Radix?

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.

Highlights

Visualize Disk Usage

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.

Browse and Search

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 Scans Over Time

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

Review Cleanup Candidates

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.

Save and Reopen Results

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

More Features

• 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