WinDirStat visualizes storage with treemap displays to quickly spot large files and folders, including on network drives. Users value its open-source nature and treemap-based disk visualization, but often switch due to speed and update concerns. Users complain that it can be slow, especially when scanning large drives or complex directory trees.
WizTree is the top-ranked alternative and reads the NTFS Master File Table directly, so scans can finish in seconds rather than minutes on Windows. SpaceSniffer ranks second with an easy-to-read treemap layout that users call simpler to understand, featuring a sober color scheme and labeled squares. TreeSize offers quicker scans and a friendlier UI with a separate free edition users say is "enough."
Disk analyzers split between Windows-first treemap tools and cross-platform open-source options, with QDirStat providing a WinDirStat-like experience for Linux users.
WinDirStat is a disk usage analyzer that helps visualize storage consumption through treemap displays. For open source transparency, Baobab Disk Usage Analyzer, Czkawka, and Filelight are community-driven options across Linux and macOS platforms. Linux users can choose Baobab Disk Usage Analyzer with GNOME integration, QDirStat for a WinDirStat-like UI, or ncdu for terminal-first analysis. Windows users seeking speed and polish have WizTree, TreeSize, and SpaceSniffer as frequently recommended disk analyzers with strong visual layouts.
If duplicates matter more than charts, Czkawka offers content-based comparison alongside its disk analysis features, while WizTree includes duplicate locator functionality. Terminal workflows benefit from ncdu, which is built for ncurses use over SSH, and dua-cli as another terminal-based directory analyzer for sysadmins working remotely. Android users managing phone storage can use DiskUsage for zoomable directory diagrams or disky for storage breakdown by directory and apps.
xdiskusage is a user-friendly program to show you what is using up all your disk space. It is based on the design of xhttp://alternativeto.net/software/xdu/ written by Phillip C. Dykstra <dykstra at ieee dot org & gt.
Create a visual representation of the amount of space each file is taking on your hard drive. It creates a "squarified treemap" that makes it easy to see where all your space is going.
A lightweight macOS tool for managing disk space by identifying and deleting large files, including Homebrew packages. Interactive and user-friendly CLI.
"TDP x-Ray is a visual tool intended for disk space administration. Displaying a clear graph showing the disk occupation, in which it is apparent immediately which files and folders occupy the most space.
1Tree (100% FREE) lets you see all directories/files size in 1 tree, in order to let you to do the manual disk cleaning work easily. It loads drives, folders and files with their sizes (sorted by size), and provides you with the common commands.
Disk Usage Analyzer - a free program to analyze disk space of the computer. It helps you to quickly and easily determine the size of folders on your computer, as well as the number of files they contain.
DiskSweep allows you to easily see which files and folders are taking up the most disk space and delete the unnecessary ones to free up space.
WhatSize is a simple tool that allows the user to quickly measure the size in bytes of a given folder and all subfolders and files within it. You would be surprised at how many useless files might be laying around on your hard disks.
PA Storage Monitor shows what you are storing and supports your storage manager tasks. Many rich file reports, including file owner information available.
FolderSize is intended to be a simple application to determine what folders takes up place on your machine and to present it to you graphically.
United States
Netherlands
EU
Russia
Good very lightweight program for linux. No color coding unfortunately (just white rectangles) but still good for determining what's eating up space on a linux server over X11