



DaisyDisk is described as 'Visually analyzes disk space with an interactive sunburst map, identifies and previews large files, and enables efficient removal to reclaim storage space' and is a very popular disk usage analyzer in the system & hardware category. There are more than 100 alternatives to DaisyDisk for a variety of platforms, including Windows, Mac, Linux, BSD and Flathub apps. The best DaisyDisk alternative is WinDirStat, which is both free and Open Source. Other great apps like DaisyDisk are WizTree, Baobab Disk Usage Analyzer, Filelight and SD Maid SE.




Cross-platform disk cleaning tool offering private, local file operations with no data tracking, no cloud uploads, no ads, no cost, and an intuitive interface. Fast performance, efficient space recovery, and full functionality for Mac, Windows, and Linux.


SpaceRadar allows interactive visualization of disk space and memory. It currently supports Sunburst, Treemap, and Flamegraph charts.



This tool uses a sunburst chart to display the usage of your hard disk or other media. The chart shows all major files and folders from all directory levels at once.

The program seems to be no longer updated. Last version, 2.13, released in July 2012, is fully working and can be still downloaded from the official website.


SpaceMonger is a treemapping tool for hard disks and file systems. It scans, maps, and manages PC, network, and cloud storage. It can copy, move, and delete files to free up storage space. It helps locate large files and folders quickly with Treemap visuals and finds files by...




JDiskReport enables you to understand how much space the files and directories consume on your disk drives, and it helps you find obsolete files and folders.

Native Quick Look add-on for macOS lets you preview folder size, largest files and subfolders, item counts, storage breakdown, and hidden files directly in Finder. On-demand, local scans ensure no cloud uploads or tracking, with upgrade for further folder inspection.




OmniDiskSweeper is a Mac OS X utility for quickly finding and deleting big, useless files and making space on your hard disks. OmniDiskSweeper scans your disks and highlights the biggest files, so you can determine what's using up your disk space.



FolderSizes provides an engaging, interactive disk space analysis experience that you must try yourself to truly appreciate. More than just a series of diverse reports, FolderSizes allows you to visualize your disk space usage from multiple perspectives, like SequoiaView.




Xinorbis is a completely FREE, powerful Windows-based data storage analyser for single users or network administrators. Provides an instant visual display of the contents of a hard disk, single or multiple directories. Output reports to XML, CSV, HTML or plain ASCII.




Inspect your disk and find the files that occupy the most space or that haven’t been modified in a long time.




Simple, fast, small size, portable