SpaceSniffer

SpaceSniffer is a tool application that gives you an idea of how folders and files are structured on your disks.

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 folder, including its subfolders.

Freemium 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, where segments mean files and folders, proportionally to their sizes.

Commercial

dupeGuru

dupeGuru is a free and open source tool to find duplicate files on your computer. It can scan either filenames or contents.

Free Open Source Mac OS X Windows Linux 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 directories/subdirectories proportional to their size.

Free Open Source Android

Nektony Disk Expert

Disk Expert is a powerful disk space scanning, reporting and processing utility for Mac OSX. Disk Expert will provide you with the information you need for better understanding and managing your disk space content.

Commercial

Nektony Disk Inspector

Disk Inspector is a utility that allows you to locate "space eaters" - big files and folders saved on disks in your Mac.

Commercial

ClearDisk

ClearDisk is a Mac OS X utility designed to clean the hard disk of unnecessary files which clog up the disk space. The goal of ClearDisk is just to find unused files on your computer and remove them.

Commercial

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 and sub folders.

Free Mac OS X

WhatSize

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...

Commercial Mac OS X

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

Disk Xray

Disk Xray is a disk usage statistics viewer, duplicate files/folders finder and cleanup tool for Mac OS X. Disk Xray consists of three modules: 1. Folder scanner is...

Commercial Mac OS X

GetFolderSize

GetFoldersize allows you to determine the size of folders and sub-folders on your hard drive. Determine which programs are taking up your hard disk space. For each...

Free Windows

UtilStudio Disk Space Finder

UtilStudio Disk Space Finder is a simple tool that you can use to find the files that occupy the most space on your computer.

Freemium Windows

Disk Space Fan Pro

Disk Space Fan Pro is a is not only a duplicate file finder, but also a powerful disk space analysis tool for Windows. It helps you to free up disk space by quickly...

Commercial Windows

Disk Health

Clean up your Mac's hard drive of tons of unneeded files and find duplicate files with just a drag & drop. We have combined two essential utilities for your Mac...

Commercial

Directory Size Calculator

Directory Size Calculator is a tool for recursively calculating the total size of a directory tree. This tool was developed to help you to analyze and clean-up the...

Free Open Source Windows

DiskGraph

Disk Graph is a tool that allows you to inspect your disk and easily find the files that take away most of your disk space. With its beautiful interface and its pie-like...

Commercial

Disk Space Finder

Disk Space Finder helps visualize your data to find wasted space. It shows you a graphical diagram of what is takeing up your space.

Free Windows