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kage vs Cyotek WebCopy: catalog facts
kage	Cyotek WebCopy
Free Free and open source under the MIT licence.	Free Free to use.
Windows, macOS, Linux, Command line	Windows
Captures JavaScript-rendered pages through a real browser Saved copies run no scripts and make no network calls	Remaps links for offline browsing Rules to include or exclude parts of a site
Interactive features that depend on JavaScript stop working in the copy Needs Chrome for rendering	Windows only and needs the .NET Framework Does not run JavaScript, so dynamic sites copy poorly
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 24, 2026

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