Pretext.js Rich Text API

Explore pretext.js's rich text API — measure multi-style, multi-font text spans in a single layout pass without DOM reflow. Pretextjs styled text measurement for rich text editors.

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.