TreeSize vs WizTree (2026): which should you pick?

Pick TreeSize if

• Fits if you need to find what fills a Windows drive
• Works for IT staff who want scheduled storage reports

Look elsewhere if

• Skip it if you use Mac or Linux, as it is Windows only
• Not for you if you want free at work, as the free edition is for private use only
• Tight if you need duplicate search, since that needs Personal at 20.40 EUR a year
• Watch out: prices are in euros and may differ by region

Pick WizTree if

• Fits if your drive is full at home and you want the answer for free
• Works for people on both Windows and a Mac who want the same tool on each

Look elsewhere if

• Skip it if you want a free tool for the office, as commercial use needs a supporter code from $25
• Pricey if you want every new version, because a code covers one year of upgrades and a renewal is 50% off, not free
• Not for you if you need to scan an Android phone from a Mac, since WizTreeMac can't scan MTP devices yet
• Watch out: WizTreeMac needs macOS 12 or later and has no match for the fast Windows scan
• Tight if you're on the free version and need help, as it comes with no support and adds a donation line to exports

TreeSize

• Windows only; the editions page lists Windows desktop editions.
• Prices are shown in euros on the site and may differ by region; the free edition is limited to private use.
• Duplicate search and usage comparison need a paid edition.

WizTree

• The free version is for personal use only; commercial use needs a supporter code priced by the organization's total staff, per site.
• A supporter code covers versions released within one year of purchase. Newer versions need a new code, offered at 50% off.
• WizTreeMac needs macOS 12 or later, has no equivalent of the Windows MFT scan and cannot yet scan MTP devices such as Android phones.
• The free version shows a Donate button, adds a donation message to exports and comes with no support.

TreeSize

Usage charts

Shows disk use as treemap, pie and bar charts, with a folder breakdown in an Explorer-style view.

Large and duplicate files

Personal and above filter the largest files and search for duplicates.

Many scan targets

Scans local drives, mapped network shares, and cloud or remote targets such as S3, Azure and SharePoint.

Reports and exports

Exports results to PDF, Excel, HTML or CSV, and can send scheduled reports by email.

On-premise only

The vendor says all editions run on-premise and no data leaves the PC.

Portable use

Select editions can run from a USB drive without installation.

WizTree

Direct MFT scanning on Windows

On NTFS drives the Windows version reads the Master File Table straight from the disk, which needs administrator rights, and falls back to standard scanning elsewhere.

Visual treemap

Draws every file and folder as a block sized by the space it takes, so large files and large collections of small files can be spotted at a glance.

Largest and duplicate files

File View lists every file and folder in order of size. Duplicates are found by name, size and optionally date, and shown under the file they match.

File search

A search filter in File View finds files by name or type, with wildcard searches such as *.mp3 and regular expressions.

CSV export and import

All or selected file data can be exported to a CSV file or copied to the clipboard, and exported CSV files can be imported again to track changes over time.

Command line

CSV exports and MFT dumps can be run with command-line parameters, which the vendor suggests for automated auditing of drives.

TreeSize

• TreeSize Free0 EUR

  Home use only (non-commercial). Treemap chart and PDF reports of disk usage.

• TreeSize Personal20.40 EUR

  per user / year, billed annually

  Adds top-largest-file filter, duplicate search and usage comparison. 14-day trial; a perpetual option exists.

• TreeSize ProfessionalFrom 41.00 EUR

  per user / year, billed annually

  Adds command-line and task scheduler options and custom PDF, Excel and HTML exports. 14-day trial.

• TreeSize Consultant240.00 EUR

  per user / year, billed annually

  Portable licence usable across multiple client systems. 14-day trial.

WizTree

• Free Version$0

  Personal use only: scanning, tree view, treemap, file search, CSV export and duplicate finder, with a Donate button and no support.

• Supporter: Individual$25

  one-time purchase, perpetual, 1 year of upgrades

  Allows commercial use, removes the Donate button and the donation message from exports, and adds standard support.

• Supporter: Business (up to 100 staff)$100 to $500

  one-time purchase per site, by total staff

  Micro (up to 5 staff) $100, Small (up to 20) $200, Medium (up to 50) $350, Large (up to 100) $500. Covers all staff devices at one site.

• Enterprise (single site)$750

  one-time purchase, perpetual, 1 year of upgrades

  Unlimited use for organizations with more than 100 staff at a single location, with priority support.

• Enterprise (multi site)$1,800

  one-time purchase, perpetual, 1 year of upgrades

  Unlimited use for organizations with more than 100 staff working from more than one location, with priority support.

TreeSize

No public discounts listed.

WizTree

• Lifetime license

  Perpetual supporter code

  Supporter codes do not expire: a code keeps working on any WizTree version released within one year of the purchase date.

• Other savings

  50% off renewal licenses

  Existing supporter code holders get 50% off the regular license fee when they buy a renewal license, after verifying their email address and code.

• Nonprofit

  Discounts for non-profit organizations

  The purchase page says discounts are available for non-profit organizations such as schools, universities, charities and government agencies.