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Microsoft Windows and Office ISO Download Tool vs CrystalFetch: catalog facts
Microsoft Windows and Office ISO Download Tool	CrystalFetch
Free The tool is a free download; Windows and Office licences are separate.	Free Free to download, with the source published on GitHub.
Windows	macOS
Downloads genuine images from Microsoft's servers Covers older Windows and Office versions	Point-and-click interface instead of UUPDump scripts Builds a Windows ISO entirely on a Mac
Windows only Closed source	macOS only Depends on the UUPDump service and Microsoft update servers
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.