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CreepJS vs AmIUnique: catalog facts
CreepJS	AmIUnique
Free Free to use in the browser, with source on GitHub.	Free Free to use online.
Web	Web, Browser extension
Runs many fingerprinting checks in one page Handy for testing anti-fingerprinting browsers and extensions	Nothing to install Shows how identifiable a browser is through its fingerprint
Unofficial mirrors exist; only the GitHub Pages deployment is official Results are technical and take some knowledge to interpret	Tests only the browser you open it in Says little about other kinds of tracking
Web application	Web application, Browser extension
Open source	Closed source
License not stated	License not stated
No account needed	No account needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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