The JetStream 2 Benchmark Suite

As anecdotal evidence, their results seem to be indicative of the real-world browser performance I&#x27;m seeing with my (largish) application. There is a perceptible difference between Safari, Chrome and Firefox, in that order.<p>I really hope that Firefox catches up with JavaScript performance, BTW.

lazyweb: arewefastyet.com from mozilla used to visualize performance differences between chrome, safari&#x2F;webkit and firefox. Safari used to come out on top. Is this still the case? Is there perhaps another site where one can follow these browser races?

&gt; All numbers are gathered on a 2018 MacBook Pro<p>Worth noting that these results may vary on Windows or Linux.

A lot of this article is about benchmark construction methodology and performance optimizations. If you just want to see a cross-browser JavaScript performance comparison, scroll to the bottom.