Alternatives to WizTree

Finds what is eating a Windows disk in seconds by reading the NTFS master file table directly. The listings below can replace it for an important use case. Each note says what changes if you switch.

  • WizTree

    Finds what is eating a Windows disk in seconds by reading the NTFS master file table directly.

    FreemiumProprietaryWindows

Replacements

Listings that take over the same core job as WizTree.

  • WinDirStat

    Draws your whole drive as a treemap, so a single 40 GB file is a huge rectangle you cannot miss.

    FreeOpen sourceWindows

    WinDirStat is open source under GPL-2.0 with a treemap, hash-based duplicate finder and saved scans, and is free for any use.

  • TreeSize Free

    Shows which folders are eating a Windows drive, ranked largest first, without a scan that takes all afternoon.

    FreemiumProprietaryWindows

    TreeSize Free also reads the NTFS master file table and is free for commercial use, but lacks a treemap and puts duplicate search behind a paid edition.

  • SpaceSniffer

    Shows disk usage as a treemap you click into, so the biggest folders and files are immediately obvious.

    FreeProprietaryWindows

    SpaceSniffer is free closed source software with a live-updating clickable treemap and file type filters, offered as a 64-bit portable build.

  • Filelight

    Shows disk usage as concentric rings you can click into.

    FreeOpen sourceWindowsLinux

    Filelight is GPL-licensed for Windows and Linux, showing concentric rings instead of a treemap and scanning network locations too.

  • gdu

    Find large directories with a terminal disk-usage analyzer.

    FreeOpen sourceWindowsmacOSLinux

    gdu is an open source terminal analyzer with parallel scans on Windows, macOS and Linux, without a graphical treemap.

  • dua-cli

    Explore disk usage and remove unwanted files in the terminal.

    FreeOpen sourceWindowsmacOSLinux

    dua-cli is an MIT-licensed terminal tool for Windows, macOS and Linux that lets you browse usage interactively and delete files.

  • QDirStat

    A Qt-based graphical disk usage analyser with a directory tree and treemap view.

    FreeOpen sourcemacOSLinux

    QDirStat is an open-source tree and treemap analyser for Linux and macOS, with no Windows version and a dense interface.

  • K4DirStat

    A KDE utility that adds up disk usage for directory trees and shows it as a treemap.

    FreeOpen sourceLinux

    K4DirStat provides an open-source list and treemap view of disk usage on Linux, fitting best on a KDE desktop, with no Windows build.

Also worth comparing

These listings name WizTree as their own alternative, so the relationship runs both ways.

  • DiskSavvy

    A Windows disk space analyzer that classifies files on local disks, network shares and NAS devices.

    FreemiumProprietaryWindowsCommand line

    WizTree scans NTFS drives in seconds and shows a treemap with a sorted list and CSV export, though commercial use needs a paid licence.

  • FolderSizes

    A Windows disk space analyzer that reports folder sizes and finds large, old and duplicate files.

    FreemiumProprietaryWindows

    WizTree scans NTFS drives in seconds with a treemap, duplicate finder and CSV export, but lacks scheduled reports and needs a paid licence for commercial use.

Similar software

Related functionality, not a direct replacement.