K4DirStat review
A free, open-source Linux utility for viewing directory disk usage numerically and graphically.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
K4DirStat is a KDE utility for Linux that analyzes disk usage across directory trees and reports the space used numerically and graphically. It is suited to solo users who want a desktop view of local storage rather than relying only on command-line totals. The project describes itself as similar to the Unix `du` command, with a visual presentation layered onto directory-level usage inspection.
Its scope is deliberately focused: the documented features cover scanning files and folders and presenting disk usage in two forms. The graphical view gives users a way to inspect directory totals visually, while the numeric report supports straightforward comparisons. This makes K4DirStat a fit for basic storage checks, but not for buyers seeking documented app-size views or broader analysis capabilities. Its Linux/KDE orientation also makes it a poor fit for people who need a cross-platform disk analyzer.
K4DirStat is open source and distributed under the GPL-2.0 license. The project’s build instructions specify Qt 5 and KDE Framework 5, which point to a KDE desktop environment and may matter to users building the software themselves. Choose it if you want a free, Linux-focused utility for understanding how space is distributed across directories. Look elsewhere if your workflow depends on platforms beyond Linux or requires more than numeric and graphical directory usage summaries.
K4DirStat pros and cons
- Where it wins
- Analyzes disk usage across directory trees
- Shows disk usage in both numeric and graphical forms
- Free and open source under the GPL-2.0 license
- Where it doesn't
- Its verified platform support is limited to Linux
- Focuses on files and folders rather than individual app sizes
- The described feature set centers on basic disk-usage inspection
K4DirStat fact sheet, pricing and score →
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