WinDirStat
WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
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...
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, FolderSizes allows you to visualize your disk space usage from multiple perspectives, like SequoiaView.It employs a multithreaded file system scanning engine that shows you results in realtime.
reports folders treemap duplicates disk-management
WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
Free Open Source Windows
SpaceSniffer is a tool application that gives you an idea of how folders and files are structured on your disks.
Free Windows
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.
Free Mac OS X Windows Linux BSD
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
SpaceMonger is a treemapping tool for hard disks and file systems.
Commercial Windows
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 all your space is going.
Free Windows
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
Disk Inspector is a utility that allows you to locate "space eaters" - big files and folders saved on disks in your Mac.
Commercial
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