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

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