Pretext.js (pretextjs) performance benchmarks — 500x faster than getBoundingClientRect for text measurement. Avoid layout thrashing, eliminate forced reflows, and optimize JavaScript text rendering at scale.
This page is part of Learn Pretext — interactive tutorials and live demos for pretext.js, the zero-dependency JavaScript text measurement library by Cheng Lou. New to the library? Start with the pretext.js tutorial, read why pretext exists, or browse the API reference. Enable JavaScript to run the live interactive demo and view its annotated source code.