--- title: "Space Wizard and the alternatives, side by side · Space Wizard" description: "The disk analysers we compared it with, and how they line up." url: "https://royalsoftworks.com/products/space-wizard/compare/side-by-side/" source: "https://royalsoftworks.com" format: "markdown" note: "Markdown rendering of the HTML page at `url`. Same content, same canonical URL." --- Compare · 1 of 2 # Space Wizard and the alternatives, side by side. The disk analysers we compared it with, and how they line up. ## What we compared it with ### [WizTree](https://diskanalyzer.com/) A very fast disk-space analyzer for Windows and macOS that reads the NTFS file table directly. ### [TreeSize](https://www.jam-software.com/treesize) JAM Software's disk-space manager for Windows, in Free, Personal and Professional editions. ### [WinDirStat](https://windirstat.net/) The long-standing free, open-source disk usage analyzer for Windows, with a treemap. ## Side by side Checked on 5 October 2026 against each product’s own site (sources below). “Not stated on its site” means we could not find it there — read it as unknown, not as no. | Question | Space Wizard | WizTree | TreeSize | WinDirStat | | --- | --- | --- | --- | --- | | What does it cost? | Free on your home drive, up to 100 GB a scan. Pro €20 once (VAT included), one computer. | Free for personal use; commercial use needs a paid Supporter Code or an Enterprise licence. | Free edition; Personal €20.40 per user per year; Professional from €41 per user per year. | Free and open source (GPL v3). | | Which systems does it run on? | Windows 10 and 11; the Linux build follows. | Windows and macOS. | Windows. | Windows. | | Can it scan a server? | Yes — over SFTP, FTPS or plain FTP, with nothing installed on the server. | Not stated on its site | Professional: Linux via SSH, plus SharePoint, Google Drive, S3 and Azure. Personal: the same sources for personal use. | Network shares and MTP devices; SFTP and FTP are not mentioned. | | Does it find duplicate files? | Yes, by content (size, then hash) — on local drives and on servers. | Yes. | Personal and Professional: yes. Free: no. | Yes, by content hash. | | How does it show the space? | A sortable folder tree plus a bar or donut chart of the folder you are in — deliberately not a treemap. | A treemap and a folder list. | Not stated on its site | A treemap and a folder list. | | What does it do with cloud-sync folders? | Skips OneDrive, Dropbox, Google Drive, iCloud and similar by default, so a scan never downloads online-only files. | Not stated on its site | Paid editions scan cloud storage itself (SharePoint, Google Drive, S3, Azure). | Not stated on its site | [Previous Compare: all 2 pages](https://royalsoftworks.com/products/space-wizard/compare/) [Next When an alternative is the better choice.](https://royalsoftworks.com/products/space-wizard/compare/which-to-pick/) [All of Space Wizard compare](https://royalsoftworks.com/products/space-wizard/compare/)