Disk Usage Analyzer

Overview

Disk Usage Analyzer is a free Linux desktop utility for inspecting how storage is used. Its focused, folder-level approach makes it a sound choice for Linux users who need to locate space use across folders, drives, or online accounts, but its scope stops short of application and file-type reporting.

Key features

You can scan specific folders, storage devices, and online accounts, including external drives. This range is useful when the question is where storage is being consumed across different locations, rather than only on the main drive. The app does not identify which online-account services it supports, so users who need a particular service should not assume it will work for them.

Folder sizes appear in a tree view and a graphical representation, giving users two ways to examine the same folder-oriented picture. That is enough for finding large areas of storage, but not for comparing installed application sizes or seeing a file-type breakdown. Choose it for location-based storage review, not a detailed inventory by app or content category.

Pricing

The Free plan costs nothing and includes disk usage scanning on the Linux desktop. There is no paid tier to weigh against a reduced free edition; the trade-off is the app’s limited reporting scope, not a plan cap. It fits Linux users who need the supported scans without a software charge, but not those whose workflow depends on application-size or file-type reports.

Platforms

Disk Usage Analyzer is available for Linux. GNOME directs users to install the latest version from Flathub, which lists aarch64 and x86_64 architectures. The GNOME app page lists version 50.0, released on 2026-03-13. This Linux-only availability rules it out for users who need a Windows or macOS analyzer.

Who it's for

This is a practical fit for Linux desktop users who want to inspect folder sizes across local storage, external drives, and online accounts without paying. It is less suitable when the decision depends on which applications take up space, how usage divides by file type, or whether a specific online service is supported.

Pros and cons

• Pros: Free scanning covers specific folders, storage devices, and external drives, so users can investigate storage beyond a single internal disk.
• Pros: Tree and graphical views make folder sizes inspectable in two forms without changing the app’s free pricing.
• Cons: No application-size figures or file-type breakdowns, limiting its usefulness for app-by-app or category-level cleanup decisions.
• Cons: Linux is the only supported platform, and online-account services are not identified.
• Cons: Flathub labels the app “Medium Risk.” The app page states no security certifications or compliance details, so it may not satisfy users who require those assurances.

Alternatives

Browse Disk Space Analyzers for more options. For a free Linux alternative that also runs on Windows, consider Filelight. Windows users can compare TreeSize, which has a free plan and a free trial, or WizTree, a freemium option for Windows and macOS with a $25 a month Individual Supporter Code; its supporter codes do not expire and include a perpetual personal-use license. WinDirStat is another free Windows option, including for commercial use. Mac users may prefer OmniDiskSweeper, a free macOS utility, or Disk Analyzer Pro, which offers a free personal edition for local-drive usage reports, file and folder deletion, and duplicate-file reports. Windows users seeking local analysis with cleanup and storage recommendations can consider SizeTrend; its free plan includes local drive and folder scans and file, content, and duplicate-file analysis. For Windows users willing to pay for a personal license, FolderSizes has a 30.00 USD once-only Personal Edition license for personal and home-network use.

Verdict

Choose Disk Usage Analyzer if you use Linux and want a free way to review folder sizes across drives, folders, or online accounts. Its broad scan locations and two folder views are useful within that job, but the lack of application-size and file-type reports is the central reason to look elsewhere.