DiskGeek
Free disk space analyser for Windows — no ads, no bloat
DiskGeek scans your drives and shows exactly what's eating your space, with a sortable list view and a treemap view. It finds exact duplicates (SHA-256) and near-duplicate / visually similar images using perceptual hashing, with full-text search across scan results and batch rename. Snapshot comparison shows what changed between scans over time, and scheduled, unattended scans can run from the command line for ongoing monitoring.