K4DirStat

Free plan Linux

What K4DirStat is

K4DirStat is a free Linux utility for inspecting storage use across directory trees. It scans files and folders, then presents disk usage numerically and graphically. The project describes its purpose as similar to the Unix du command, giving users a directory-level view of where space is used. It is released under the GPL-2.0 license, with no paid plans stated. Version 3.0 and later require KDE Framework 5. Building those versions from source uses Qt 5 and KDE Framework 5 headers; the README provides CMake and make install commands. Versions from 2.7.0 through before 3.0.0 require KDE 4 instead. The project wiki lists Gentoo and an Ubuntu PPA as package sources, while noting versions may not be current. It also lists a pkgsrc package for NetBSD and DragonFly. A linked tutorial covers using KDirStat with clusters. The repository is hosted on GitHub under jeromerobert.

Who it suits

It suits Linux users who need a directory-tree view of disk usage in numerical and graphical form. Builders should be prepared to install the required Qt and KDE development components.

What it does well

Summarizes directory storage numerically
Displays graphical disk-usage views
GPL-2.0 licensed and free
Provides source-build instructions
Package sources include Gentoo and Ubuntu

What to know first

Linux only
Version 3.0 requires KDE Framework 5
Older versions require KDE 4
Listed package versions may not be current

Plans

Plan	Billed and limits	Price
K4DirStat	GPL-2.0 licensed; no paid plans stated	Free

As github.com lists them, read 12 Oct 2026. The maker's own page has the final word.

Verdict

K4DirStat provides a focused, free view of storage distribution across folders. Check KDE requirements and package currency when planning installation.

Facts from K4DirStat's own pages

Application sizes: No · github.com, 23 Sept 2026
Audience: The project describes K4DirStat as a utility for inspecting disk usage in directory trees. · github.com, 12 Oct 2026
Build dependencies: The project README instructs builders to install Qt 5 and KDE Framework 5 headers. · github.com, 12 Oct 2026
Build system: The README gives CMake and make install commands for building and installing the program. · github.com, 12 Oct 2026
Directory tree: The project describes its purpose as similar to the Unix du command. · github.com, 12 Oct 2026
Free plan: Yes · github.com, 23 Sept 2026
Integrations: The project wiki links to a tutorial about using kdirstat for clusters. · github.com, 12 Oct 2026
KDE requirement: Starting with version 3.0, K4DirStat requires KDE Framework 5. · github.com, 12 Oct 2026
License: The repository identifies the software as GPL-2.0 licensed. · github.com, 12 Oct 2026
Linux packages: The project wiki lists a Gentoo package and the maintainer’s Ubuntu PPA among package sources, with a note that versions may not be current. · github.com, 12 Oct 2026
Maker: The repository is hosted under the GitHub account jeromerobert; the project pages opened do not state the maker’s headquarters or founding date. · github.com, 12 Oct 2026
NetBSD packages: The project wiki lists a pkgsrc package for NetBSD and DragonFly. · github.com, 12 Oct 2026
Older versions: Versions 2.7.0 through before 3.0.0 require KDE 4. · github.com, 12 Oct 2026
Desktop platforms: linux · github.com, 23 Sept 2026
Purpose: K4DirStat summarizes disk usage for directory trees and displays it numerically and graphically. · github.com, 12 Oct 2026
Scan scope: files_folders · github.com, 23 Sept 2026
Support and security: The repository has an Issues page and a Security and quality tab, but the opened project pages do not state a support policy or security certification. · github.com, 12 Oct 2026

Where K4DirStat stands on Freedom251

Disk Space Analyzers#81 of 105