squirreldisk

squirreldisk is an open-source disk space analyzer for Windows, macOS, and Linux that helps users visualize storage consumption and remove unnecessary files. It displays folder sizes through interactive sunburst charts and treemaps that update as scanning progresses. Users can navigate directory structures, identify large files, and examine storage distribution at different levels. The application supports local drives, remote servers accessed through SSH, and cloud storage services through rclone. A collection area lets users gather files for deletion, transfer, or further review. Cleanup options include moving items to the Trash, permanent deletion, and secure overwriting. Protected system locations and confirmation prompts help prevent accidental data loss. Additional capabilities include command-line scanning, file manager integration, portable operation, and automatic updates when file contents change.