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WordPress Theme Detector vs WhatRuns: catalog facts
WordPress Theme Detector	WhatRuns
Free Free to use.	Free Free extension with no sign-up required.
Web	Browser extension
Identifies both the theme and active plugins No sign-up needed	One-click technology detection Covers plugins, fonts, analytics and CDNs
Only useful for sites built on WordPress The site uses third-party analytics cookies	Proprietary Only a Chrome version is mentioned
Web application	Browser extension
Closed 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 September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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