WinDirStat

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

Free Open Source Windows

SpaceSniffer

SpaceSniffer is a tool application that gives you an idea of how folders and files are structured on your disks. By using a Treemap visualization layout, you have...

Free 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...

Free Open Source Mac Linux BSD FreeBSD GNOME ... Homebrew

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

DiskUsage

DiskUsage provides a way to find out which files and directories on the SD card of your Android phone are consuming the most space. It displays diagram with...

Free Open Source Android Android Tablet

JDiskReport

JDiskReport enables you to understand how much space the files and directories consume on your disk drives, and it helps you find obsolete files and folders. The tool...

Free Mac Windows 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

Scanner

This tool uses a sunburst chart to display the usage of your hard disk or other media. The chart shows all major files and folders from all directory levels at once.

• Discontinued The program seems to be no longer updated. Last version, 2.13, released in July 2012, is fully working and can be still downloaded from the official website.

Free Windows

RidNacs

RidNacs is a very fast disk space usage analyzer for Microsoft Windows. It scans your local drives, network drives or single directories and produces a tree view with a...

Free 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

crossdirstat

Free open-source cross-platform file & directory statistics as found on Github - Generate a directory tree for any given folder - View any folder as colored...

Free Open Source Mac Windows Linux

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

Duc

Duc is a collection of tools for inspecting and visualizing disk usage. Duc scales quite well, it has been tested on systems with more than 500 million files and...

Free Open Source Mac Linux