Apps with 'Tree map' feature

Ultra-fast disk space analyzer for Windows, showing largest files and folders according to space usage by utilizing the NTFS file system's Master File Table for unmatched speed.

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 immediate perception of where big folders and files are situated on your devices.

QDirStat is a graphical disk usage utility. The successor of KDirStat without any KDE dependencies.

Lookyloo is a web interface that allows users to capture a website page and then display a tree of domains that call each other.

Modern Graphical Disk Space Analyzer, 3 times faster than WinDirStat.

Landiskape is a storage visualizer which tells you how your storage is being used by using an easy to understand 2D chart.

a tool for writing & testing nonlinear dialogue, especially for video games, and a full featured visual editor for managing game storylines.