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WhatRuns vs HackerTarget WhatWeb Scan: catalog facts
WhatRuns	HackerTarget WhatWeb Scan
Free Free extension with no sign-up required.	Freemium Free analysis reports are offered, with paid plans for more scanning.
Browser extension	Web
One-click technology detection Covers plugins, fonts, analytics and CDNs	Runs WhatWeb and Wappalyzer without a local install Detects applications, web servers and other technologies
Proprietary Only a Chrome version is mentioned	Intended for authorized testing of sites you own or may assess Heavier use sits behind paid plans
Browser extension	Web application
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 24, 2026	Official website Full listing and sources Checked September 23, 2026

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