Mac users often find themselves short on storage space, yet the native tools from Apple do not always provide clear insights into what is consuming the capacity. While broad categories are available, pinpointing specific folders, downloads, applications, or archived projects remains a challenge.

Radix serves as a complimentary, open-source application designed to simplify this task. As a disk space analyzer, it examines selected folders, drives, or volumes and presents the data via an interactive sunburst chart. This approach delivers a visual representation of storage distribution without the need for manual folder navigation.

Understanding Radix's Visualization Features

The tool employs a circular diagram where successive rings denote deeper folder levels. Sections with greater size indicate higher storage consumption, facilitating quick identification of space-intensive items. Users can select segments for deeper exploration, access additional information on hover, and organize or refine results based on size, name, date, or file type.

Developed using Swift and SwiftUI, the app leverages native macOS interfaces for efficient scanning, as noted by its creator Colin Kim. According to a Reddit discussion, Radix consumes less than 100MB of memory upon startup and manages extensive scans effectively.

Comparison with Alternative Mac Disk Tools

Several other solutions exist in this space. DaisyDisk stands out as a refined option but requires a $9.99 purchase. Free alternatives include GrandPerspective and Disk Inventory X, while SquirrelDisk, though open-source, has seen no updates since early 2023 per Kim.

Radix distinguishes itself through its no-cost access, open-source nature, and contemporary design compared to legacy analyzers. Additional capabilities include Quick Look support, metadata review, and search functions within the current directory or entire scan. All operations occur locally without any accounts, tracking, or data sharing. It requires macOS 14.0 or newer.