Web Dev #Open Source #Web Development #Frontend #JavaScript

Tegaki Handwriting Animation Library: Install & Test — Easy Hand-Drawn Text Effects for the Web

Want to add natural, fluid handwriting animations to your web pages? Tegaki is a lightweight, easy-to-use JavaScript library that converts any font into stroke-by-stroke handwriting animation.

5 min read/ Easy

Introduction

In web design, handwriting animation often gives a page a unique sense of warmth and motion. But traditionally, creating this kind of animation is tedious — you have to hand-craft SVG paths, calculate stroke-dashoffset values, or rely on heavy animation libraries.

Tegaki (手書き) is an elegant open-source solution. It has no native dependencies, and you don't need to draw any paths by hand. Just pick a font, and it automatically converts your text into a smooth, stroke-by-stroke handwriting animation.


Live Demo

Below is an embedded demo I put together using Tegaki. You can type in text, switch fonts, and tweak animation parameters to see the effect in real time:


Official Online Generator

You can also use Tegaki's official online tool. It provides an intuitive visual interface with live preview and supports exporting configured fonts and animation paths directly.

Click here to open the Tegaki Online Generator


How to Use Tegaki in Your Project

1. Install the Package

You can install Tegaki into your frontend project via npm:

bash
npm install tegaki

2. Framework Integration & Basic Usage

Tegaki provides out-of-the-box component support for all major frontend frameworks (React, Vue, Svelte, SolidJS, Astro).

React Example

jsx
import { TegakiRenderer } from 'tegaki/react';
import caveat from 'tegaki/fonts/caveat';

function App() {
  return (
    <TegakiRenderer font={caveat} style={{ fontSize: '48px' }}>
      Hello World
    </TegakiRenderer>
  );
}

Vue 3 / Nuxt 3 Example

vue
<script setup>
import { TegakiRenderer } from 'tegaki/vue';
import caveat from 'tegaki/fonts/caveat';
</script>

<template>
  <TegakiRenderer :font="caveat" style="font-size: 48px;">
    Hello World
  </TegakiRenderer>
</template>

Vanilla JS Example

If you're working in a plain JavaScript environment, you can use the Core engine for manual control:

javascript
import { TegakiEngine } from 'tegaki/core';
import caveat from 'tegaki/fonts/caveat';

const container = document.getElementById('my-container');
const engine = new TegakiEngine(container, {
  font: caveat,
  text: 'Hello World',
  fontSize: 48
});

engine.play();

Built-in Font Support

Tegaki bundles several popular open-source handwriting fonts that you can import directly:

  • Caveat (tegaki/fonts/caveat) — A common Latin handwriting font
  • Italianno (tegaki/fonts/italianno) — An elegant cursive handwriting font
  • Tangerine (tegaki/fonts/tangerine) — A classic calligraphic font
  • Parisienne (tegaki/fonts/parisienne) — French romantic style
  • Klee One (tegaki/fonts/klee-one) — A Japanese font (supports hiragana, katakana, and some common kanji)

Personal Impressions & Limitations

After running a few tests with Tegaki, here are the notable pros and cons I found:

Pros

  1. Fast to get started: No manual SVG path tweaking needed. Just pass in text and a font file and it works. Minimal dev cost.
  2. Good-looking output: The stroke order and speed feel natural, with a convincing hand-drawn motion.
  3. Great framework support: Wrappers for all major frameworks mean you can drop it into an existing project with just a few lines of code.

Limitations & the Chinese-Character Problem

Tegaki is a solid tool, but it hits a hard technical ceiling when dealing with Chinese characters:

  • Stroke structure is too complex: The 26 letters of the English alphabet have simple, fixed strokes that are easy to pre-process into vector paths with stroke order. Chinese has thousands of commonly used characters, each with intricate stroke structure and direction changes.
  • Stroke order varies per character and is hard to get right: Every Chinese character has a different stroke trajectory. Under Tegaki's current approach — which relies on pre-built models or font stroke analysis — perfectly parsing and reconstructing correct Chinese stroke order is basically not feasible. Even the bundled Japanese font Klee One supports some kanji, but when used for pure Chinese text you'll still run into serious missing characters or scrambled stroke animation sequences.

So: if your main use case is handwriting animation for English text, numbers, or simple Japanese, Tegaki is a solid and lightweight pick. But if you're looking to apply it to Traditional or Simplified Chinese headlines, you'll probably need to fall back to manually drawing SVG paths for now.


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