WinDirStat is a disk usage statistics viewer and cleanup tool for Windows based systems.

BleachBit quickly frees disk space and tirelessly guards your privacy.

TreeSize Free is a free disk space manager for Windows. The software shows you the sizes of folders including all subfolders.

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.

WizTree gives you more control over how you see your files, in addition to letting you learn more about them from one look.

SequoiaView is a disk browsing tool based on the principle of treemaps.

RidNacs is a free and very fast disk space usage analyzer for Windows.

FreeCommander is a freeware file manager with built-in FTP client, archive handling, multi-rename, wipe files and MD5 checksums.

SpaceSniffer is a freeWare and portable tool application that lets you understand how folders and files are structured on disks.

Auslogics BoostSpeed is a software application presented as a bundle of software utilities intended to speed up, optimize and clean the user's computer, fix r…

SpaceMonger is a tool for keeping track of the free space on your computer.

Folder Size is a freeware disk size analysis tool that will display the directory sizes and folder tree sizes.

Overdisk is a visual disk space explorer tool.