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Disk utility · Windows & Linux

Gudrun

Visualize your disk space. A treemap analyzer that scans a terabyte drive in seconds — with file sizes shown visually in proportion to the rest of the drive.

Download free trial Buy a license — $15

Free 30 days · no feature limits · no account · no telemetry

The Gudrun window after scanning C: — a treemap where every rectangle is a file, sized by bytes — One scan of C: — every rectangle is a file, sized by bytes. More about Gudrun →