WinDirStat vs WizTree
Side-by-side comparison of features, pricing, ratings, and alternatives.
WinDirStat is a free, open-source disk usage analyzer for Microsoft Windows that scans drives and folders and shows how disk space is distributed across the file system. It uses multithreaded scanning with direct NTFS support and presents results as sortable lists, extension statistics, a Largest Files view, and an interactive treemap that makes it easy to visually spot which folders and file types are consuming the most space. Beyond basic scanning, WinDirStat can detect duplicate files by content, inspect file permissions, and analyze storage tiers, and it supports file operations like opening, moving, or deleting items directly from the results view. It also offers dark mode, Windows Explorer integration, file-system change monitoring, and scan export, and is distributed under the GNU General Public License version 2 (GPLv2) with source code hosted on GitHub.
WizTree is a free disk space analyzer for Windows built by Antibody Software that scans entire hard drives in seconds by reading the NTFS Master File Table directly instead of walking the file system folder by folder. It renders results as an interactive treemap so users can visually spot the largest files and folders on a drive at a glance, then delete or move them without digging through Explorer. Beyond the core treemap view, WizTree includes a duplicate file finder, CSV export for reporting, and support for non-NTFS and network drives via a slower standard scan. The free version is for personal use only; commercial users need a Supporter license priced by organization size, or an Enterprise license for unlimited use across a company.
- Completely free and open source under GPLv2
- Interactive treemap makes large files easy to spot visually
- Built-in duplicate file detection by content
- Source code is publicly available on GitHub for transparency
- Extremely fast full-drive scans compared to folder-by-folder tools
- Free for personal use with no feature restrictions
- Simple, information-dense treemap makes big space hogs easy to spot
- Lightweight, portable executable with no heavy installation
- Windows-only, no Mac or Linux version
- Interface is more utilitarian than modern, polished commercial tools
- No cloud storage scanning support mentioned on the site
- Windows only, no Mac or Linux version
- Fastest scanning requires NTFS; other file systems and network drives scan much slower
- Interface is utilitarian and dated compared to modern apps
More alternatives & similar tools
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The Verdict
AI-generated from listing dataBoth tools are Windows‑only disk‑usage visualizers; WinDirStat is fully free and open‑source, while WizTree offers faster NTFS scans but adds a freemium model.
Key differences
- •Scanning speed: WizTree reads the NTFS MFT directly for near‑instant full‑drive scans; WinDirStat uses multithreaded scanning and is slower.
- •Pricing model: WinDirStat is completely free and open‑source; WizTree is free for personal use but limits features in its paid tier.
- •Duplicate detection: WinDirStat compares file content; WizTree finds duplicates but does not specify content‑based comparison.
- •Export capability: WizTree can export results to CSV; WinDirStat’s export options are not specified.
- •Open‑source vs closed: WinDirStat’s source code is publicly available; WizTree is proprietary with no API.
Pricing & value
WinDirStat is fully free and open‑source; WizTree is freemium, free only for personal use.
Ease of use / learning curve
Both provide similar treemap UI and utilitarian interfaces; no clear advantage in the provided facts.
Features & depth
WizTree adds ultra‑fast NTFS scans, CSV export, and accurate hard‑link handling not mentioned for WinDirStat.
Integrations & ecosystem
WinDirStat integrates with Windows Explorer and offers dark mode; WizTree has no listed integrations.
Collaboration
Neither tool mentions collaboration features; both are standalone desktop apps.
Scalability
WizTree’s direct MFT reading scales to very large drives with minimal time; WinDirStat scales slower.
Support
WinDirStat provides community support via GitHub; WizTree lists no support options.
Choose WinDirStat if…
IT admins or power users needing free, open‑source tool with Explorer integration and content‑based duplicate detection.
Choose WizTree if…
Users prioritizing scan speed on NTFS drives, CSV export, and hard‑link accuracy, and okay with freemium limits.
Common questions
Is there any cost to use either tool in a commercial environment?
WinDirStat is completely free and open‑source; WizTree is free for personal use but may require a paid license for commercial use.
Which tool scans large drives faster?
WizTree reads the NTFS Master File Table directly and scans full drives in seconds, while WinDirStat uses multithreaded scanning and is slower.
Can I export scan results for reporting?
WizTree can export scan results to CSV; WinDirStat’s export capabilities are not specified in the provided facts.