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On the recordRead 12 Oct 202615 facts
DiskSizer
Plans and prices
Free
Free
Free forever · open source
Read 12 Oct 2026 · disksizer.whhite.com
On the record
- Charts
- It offers interactive D3 sunburst and treemap views that visualize files and folders in proportion to their size and support directory drill-down.disksizer.whhite.com · read 12 Oct 2026
- Distribution
- The site describes DiskSizer as free forever and open source, and links to its GitHub repository for download.disksizer.whhite.com · read 12 Oct 2026
- Drive detection
- DiskSizer auto-detects drive type through WMI.disksizer.whhite.com · read 12 Oct 2026
- HDD scanning
- On HDDs, a native C++ addon uses Windows FindFirstFileExW to read file sizes from directory entries without per-file stat() calls.disksizer.whhite.com · read 12 Oct 2026
- Intended audience
- The site presents DiskSizer as a tool for understanding disk usage and reclaiming storage on Windows.disksizer.whhite.com · read 12 Oct 2026
- Performance
- The site reports 1.18× faster scans on large trees of 3M or more files, 1.92× faster scans on smaller directories, and 73% lower heap usage.disksizer.whhite.com · read 12 Oct 2026
- Purpose
- DiskSizer is a Windows disk space analyzer for seeing what is using storage across drives.disksizer.whhite.com · read 12 Oct 2026
- Scanner design
- Its In-Memory First scanner keeps 64 directory read requests in flight simultaneously; on SSDs it runs with unlimited parallelism.disksizer.whhite.com · read 12 Oct 2026
- Scan progress
- A progress overlay shows files and sizes accumulating while a scan runs.disksizer.whhite.com · read 12 Oct 2026
- Scan scope
- files_foldersdisksizer.whhite.com · read 22 Sep 2026
- Support
- The site links to GitHub Issues for reporting issues.disksizer.whhite.com · read 12 Oct 2026
- Technology
- The listed stack includes Electron 28, React 18, D3 v7, a C++ N-API addon, TypeScript, and Tailwind CSS.disksizer.whhite.com · read 12 Oct 2026
- Treemap view
- Yesdisksizer.whhite.com · read 22 Sep 2026
