Best Disk Space Analyzers in 2026 · page 2

DaisyDisk

SpaceMan

Free Windows, macOS and Linux treemap analyzer for finding disk usage by folder.

DiskBrain

Sift

DiskTree

TreeMap

DiskSavvy

Windows analyzer with file-type breakdown and report export; offers a 30-day trial.

StorageRadar

macOS tool shows disk use by app size, file type and treemap; free tier, paid from $9.99.

DiskScope

DiskScope is a free, open-source desktop application for analyzing disk usage, finding files, and uninstalling applications.

SpaceSniffer

Free Windows analyzer with a treemap, file-type breakdown and exportable reports.

SpaceMonger

Windows tool maps disk contents by size and file type; includes a 30-day trial.

Flare Scan

Flare Scan is a free, open-source macOS tool for reviewing disk and memory use and comparing storage scans.

DiskMap

Free Windows analyzer with a treemap and file-type breakdown.

Drive Sonar

Drive Sonar is a free, open-source desktop disk-usage explorer for Windows, macOS, and Linux.

DiskLens

Free for Windows and macOS, with app sizes and a file-type breakdown.

ncdu

diskbloom

Durs

OmniDiskSweeper

OmniDiskSweeper is a free macOS utility that lists files on a drive from largest to smallest, helping users locate large files they may want to open or remove.

Capacitra

Capacitra is a free, offline storage analyzer for Windows that maps disk usage through treemaps, trees, and charts.

Radix

Radix is a free macOS application for examining storage usage in files and folders.

SpaceBrowser

Free Windows, Linux and macOS tool displays folder and volume contents by file size.

dumap

Free for Windows, macOS and Linux; shows file types in a treemap and exports reports.

DiskPilot

Free Windows, macOS and Linux analyzer with treemap for files and folders.

agedu

agedu is a free, MIT-licensed utility that scans a directory tree and relates disk usage to file access times.