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GTmetrix vs PageSpeed Insights: catalog facts
GTmetrix	PageSpeed Insights
Freemium Free tests and a free account, with paid plans for more features.	Free Free to use.
Web	Web
Test locations in 25 regions Configurable connection speed, user agent and cookies	Field and lab data side by side Separate mobile and desktop results
Many options and locations require an account or paid plan	Field data only appears for URLs with enough Chrome traffic Single-page checks rather than ongoing monitoring
Web application, Hosted service	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is 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 23, 2026

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