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

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 easily spot which files and folders take up the most space.

Free Open Source Mac OS X

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 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

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