GrandPerspective v3.7.2

GrandPerspective scans a folder — or your entire drive — and renders a treemap where each file is a colored rectangle sized proportionally to its disk usage. Bloated cache folders and forgotten downloads jump out instantly. It's free, open-source, and requires no installation. Just download, open, and scan. For reclaiming disk space with zero guesswork, nothing beats a good treemap.