Highlighter

Draw hand-drawn sketch annotations over inline text, powered by Rough Notation.

Installation

pnpm dlx shadcn@latest add "https://godui.design/r/highlighter.json"

Highlighter draws its sketch annotations with rough-notation and uses framer-motion for the optional in-view trigger. Both are peer dependencies:

npm install rough-notation framer-motion

Usage

import { Highlighter } from "@/components/godui/highlighter";

Wrap any inline text. The annotation is drawn over the element on mount.

<p>
  The quick brown <Highlighter>fox</Highlighter> jumps over the lazy dog.
</p>

Actions

<Highlighter action="highlight">highlight</Highlighter>
<Highlighter action="underline" color="#60a5fa">underline</Highlighter>
<Highlighter action="box" color="#f59e0b">box</Highlighter>
<Highlighter action="circle" color="#34d399">circle</Highlighter>
<Highlighter action="strike-through" color="#f87171">strike-through</Highlighter>
<Highlighter action="crossed-off" color="#a78bfa">crossed-off</Highlighter>
<Highlighter action="bracket" color="#fb7185">bracket</Highlighter>

The highlight action paints a pale marker behind the text and renders it in dark ink — like a real highlighter pen — so it stays legible in both light and dark mode. The other actions draw around the text and keep the inherited color.

Animate on scroll

Set isView to defer the draw-in animation until the element scrolls into view.

<Highlighter action="underline" isView>
  Reveals as you scroll
</Highlighter>

Tuning the sketch

<Highlighter
  action="box"
  color="#22d3ee"
  strokeWidth={2.5}
  iterations={3}
  padding={6}
  animationDuration={900}
>
  Bolder, looser, slower
</Highlighter>

Examples

In a sentence

Drop it around any inline word — the sketch draws over the text in place.

Tuning the sketch

Push strokeWidth, iterations, padding, and animationDuration for a bolder, looser, slower draw.

Props

Accessibility

The annotation is a decorative SVG overlay; it does not alter the text content, so the underlying text remains fully readable and selectable by screen readers.