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Dev tools · March 17, 2026

RJ

Revise.js – Building blocks for contenteditable-based text editors

Hi HN. I've been working on this since 2018. Revise.js is a set of building blocks for contenteditable: a web component that gives you a textarea-like .value for any contenteditable element, an Edit data structure with compose/transform/invert for OT inspired by the Xi editor, and a Crank.js integration for declarative editable components. At 32.8 KB gzipped (including the rendering framework), it's 2–4x smaller than ProseMirror, Slate, or CodeMirror. The trade-off is that those ship complete editors; Revise is foundations you build on. All the demos on the homepage are live and…

What it does

In the maker’s words, at launch

Hi HN. I've been working on this since 2018. Revise.js is a set of building blocks for contenteditable: a <content-area> web component that gives you a textarea-like .value for any contenteditable element, an Edit data structure with compose&#x2F;transform&#x2F;invert for OT inspired by the Xi editor, and a Crank.js integration for declarative editable components. At 32.8 KB gzipped (including the rendering framework), it's 2–4x smaller than ProseMirror, Slate, or CodeMirror. The trade-off is that those ship complete editors; Revise is foundations you build on. All the demos on the homepage are live and editable: https:&#x2F;&#x2F;revise.js.org

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