WizTree

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Overview

WizTree is a disk space analyzer for Windows that scans hard drives to identify files and folders using the most space. It reads the Master File Table (MFT) directly on NTFS drives for faster performance than traditional methods and displays results in a visual treemap.234

Key Features

  • Fast MFT scanning - Reads NTFS Master File Table directly for rapid disk analysis, bypassing the operating system.24
  • Treemap visualization - Displays file and folder sizes visually to quickly spot large items.234
  • Duplicate file detection - Identifies duplicates by name, size, and optionally date.4
  • File search and filters - Searches by name, type, size, date, or wildcards like '*.mp3'.47
  • Multi-file system support - Scans NTFS, FAT, FAT32, network drives, USB, and MTP/PTP devices.46
  • Export capabilities - Exports scan data to CSV or MFT dump format.45
  • Command-line support - Supports automated scans and exports via command line.4
  • Seer/QuickLook integration - Previews selected files by pressing space bar if Seer or QuickLook is installed.6

Pricing

PlanPriceIncludes
Personal UseFreeUnlimited use for non-commercial purposes.34
Supporter CodePaid (amount not specified)Supports development and enables commercial use.3
Enterprise LicensePaid (contact for details)Unlimited use for large organizations.3

Platforms & Requirements

WizTree runs on Windows, with support for ReactOS in recent versions. It scans local drives (NTFS, FAT, FAT32), network drives, USB devices, and MTP/PTP portable devices like phones. Minimum requirements are not specified; portable version available without installation.46

Integrations & Ecosystem

  • CSV export
  • MFT dump export
  • Command-line interface
  • Seer/QuickLook preview
  • MTP/PTP device support

Alternatives

AppDifference
WinDirStatSlower scanning as it does not use direct MFT reading on NTFS drives.18
TreeSizeCommercial tool with similar visualization but lacks free personal use option.8
SpaceSnifferReal-time map view without MFT optimization, resulting in slower scans.8
Windows Storage SenseBuilt-in Windows tool with less detailed visualization and no treemap.8

Reputation

WizTree is praised for its exceptional scanning speed due to MFT reading, making it faster than competitors like WinDirStat.138 Users appreciate the intuitive treemap and duplicate detection for effective space management.49 Some note occasional errors on non-admin mode or specific drives, addressed in updates.6 It holds positive perception in tech communities for being free and lightweight.4

Sources (9)
  1. https://www.youtube.com/watch?v=zzrCzVRo9zY
  2. https://diskanalyzer.com/about
  3. https://diskanalyzer.com
  4. https://sourceforge.net/projects/wiztree/
  5. https://www.oit.va.gov/Services/TRM/ToolPage.aspx?tid=13335
  6. https://diskanalyzer.com/download
  7. https://diskanalyzer.com/guide
  8. https://www.youtube.com/watch?v=2EHHdW_NyfY
  9. https://www.xda-developers.com/tool-to-figure-out-storage-space/