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VOSviewer vs Connected Papers: catalog facts
VOSviewer	Connected Papers
Free Free to download; the software is proprietary, not open source.	Freemium Usable in the browser; check the site for current plan limits.
Windows	Web
Purpose-built for bibliometric network maps Developed and maintained by an academic research centre	Visual graph of related papers instead of a plain result list Helps discover related work from a single starting paper
Closed source The website was compromised on August 31 and briefly served a malicious Windows build	Web only, needs an internet connection Plan limits are not described on the homepage
Downloadable app	Web application
Closed source	Closed source
License: Proprietary	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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