WinDirStat

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

Free Open Source Windows

BleachBit

BleachBit deletes unnecessary files to free valuable disk space, maintain privacy, and remove junk. Rid your system of old clutter including cache, cookies, Internet...

Free Open Source Mac Windows Linux Blackberry PortableApps.com

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...

• So useful that I use it all the time and recommend it to friends. Space is nicely represented and visualised. zyfihx • Sep 2018 Disagree   Agree

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 Linux BSD FreeBSD GNOME

WizTree

WizTree scans your entire hard drive and shows you which files and folders are using the most disk space. It does this VERY QUICKLY. In fact, we believe WizTree to be...

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

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

Wise Disk Cleaner

Free Disk Cleaner and Defragmenter Clean junks of Browsers, remove junk and useless files of Windows and Defragment your disk.

Free Windows PortableApps.com

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

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

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

Disk Space Fan

Disk Space Fan is a powerful disk space analysis tool for Windows and it is a freeware. It helps you to free up disk space by quickly finding and deleting big, useless...

Commercial Windows

Windows Disk Cleanup

Disk Cleanup is a computer maintenance utility included in Microsoft Windows designed to free up disk space on a computer's hard drive. The utility first searches...

Free Windows