WinDirStat

WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.

Free Open Source Windows

TreeSize

TreeSize tells you where precious disk space has gone to. It can be started from the context menu of a local folder or a local drive and displays the size of each...

Freemium $ $ $ Windows PortableApps.com

Baobab

Baobab Disk Usage Analyzer is a graphical, menu-driven application to analyse disk usage on Linux. Disk Usage Analyzer can easily scan either the whole filesystem tree...

• Fast flexible, but not actively developed anymore as it seems to me. Guest • Apr 2018 Disagree   Agree

Free Open Source Linux BSD FreeBSD GNOME

WizTree

Identify the data vacuums on your hard drive with pinpoint precision very, very quickly.

Free Windows

DaisyDisk

With DaisyDisk you can free up disk space by quickly finding and deleting big, useless files. The program scans any mounted disk and displays it on the sunburst map...

Commercial $ $ $ Mac

ncdu

A disk usage analyzer with an ncurses interface, aimed to be run on a remote server where you don't have an entire gaphical setup, but have to do with a simple SSH...

Free Open Source Mac Linux BSD

GrandPerspective

GrandPerspective is a small utility application for Mac that graphically shows the disk usage within a file system. It can help you to manage your disk, as you can...

Free Open Source Mac

FolderSizes

FolderSizes provides an engaging, interactive disk space analysis experience that you must try yourself to truly appreciate. More than just a series of diverse reports...

Commercial Windows

K4DirStat

K4DirStat, fork of KDirStat , is a small utility program that sums up disk usage for directory trees, very much like the Unix...

Free Open Source Linux KDE

SpaceMonger

SpaceMonger is a treemapping tool for hard disks and file systems. Scan, map and manage PC, network and cloud storage Copy, move and delete files to free...

Commercial $ $ $ Windows

SequoiaView

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...

• Discontinued The official website is no longer available. Last version, 1.3, released in June 2006, can be still downloaded from Softpedia.

Free Windows

DiskWave

DiskWave is a free utility to help you determine where most of your hard drive space is consumed. The program scans your hard drive to compute the size of all folders...

• Discontinued The program seems to be dead, as announced in a tweet of the author: https://twitter.com/bartheph/status/742596462807265280 . The website and the changelog look abandoned. Last version, 0.4.3, released by the end of 2015, can be still downloaded from the official website.

Free Mac

MindGems Folder Size

Folder Size analyzes your hard drives and displays file and folder sizes so that you can easily check the distribution of your disk space. The application will display...

Free Windows

DiskSavvy

DiskSavvy is a free, fast and easy-to-use disk space analyzer utility allowing one to analyze disk usage in one or more disks, directories, network shares and/or NAS...

Freemium Windows

HDGraph

HDGraph helps you to free disk space : it finds for you the largest folders on your drive. Its a free tool allowing to graphically display the hard disk space usage...

Free Windows