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Readme

Editium

Production-ready rich text editor for React and Vanilla JavaScript

Modern • Lightweight • Customizable • Zero Dependencies (Vanilla)

Quick Start • Documentation • Examples • API Reference

Overview

Editium is a flexible rich text editor that works seamlessly in both React and Vanilla JavaScript environments. Built for developers who need a reliable, feature-rich editor without the complexity.

Why Editium?

Dual-Mode Support: Same powerful features in React (Slate.js) and Vanilla JS (pure JavaScript)
Production Ready: Battle-tested with comprehensive formatting tools and advanced features
Developer Experience: Get from npm install to working editor in under 60 seconds
Export Flexibility: HTML, JSON, and plain text output formats
Fully Customizable: Configure exactly what you need, hide what you don't

Quick Start

React

npm install editium

import { Editium } from 'editium';

function App() {
  return <Editium placeholder="Start typing..." toolbar="all" />;
}

See live demo →

Vanilla JavaScript

Single file - no build step required:

<!DOCTYPE html>
<html>
<head>
  <script src="https://unpkg.com/editium/vanilla/editium.bundle.js"></script>
</head>
<body>
  <div id="editor"></div>
  
  <script>
    const editor = new Editium({
      container: document.getElementById('editor'),
      placeholder: 'Start typing...',
      toolbar: 'all'
    });
  </script>
</body>
</html>

See live demo →

Key Features

Rich Text Editing

Comprehensive formatting: bold, italic, underline, strikethrough, code
8 heading levels, blockquotes, and code blocks
Text and background colors
Superscript and subscript

Advanced Capabilities

Full table support with dynamic rows/columns
Resizable images with custom upload handlers
Bulleted and numbered lists with nesting
Find and replace with match highlighting
Text alignment (left, center, right, justify)

Developer Experience

TypeScript support with full type definitions
HTML and JSON export formats
Customizable toolbar (show only what you need)
Keyboard shortcuts for efficient editing
Read-only mode for content display
Word and character counting
Fullscreen editing mode

Framework Flexibility

React: Component-based with hooks support
Vanilla JS: Zero dependencies, works anywhere
Same API and features across both versions

Installation

npm install editium

Peer dependencies (React only):

npm install react react-dom

CDN (Vanilla JS):

<script src="https://unpkg.com/editium/vanilla/editium.bundle.js"></script>

Documentation

React Usage

Basic Example

import { Editium } from 'editium';

function App() {
  return <Editium toolbar="all" placeholder="Start typing..." />;
}

With Content Management

import React, { useState } from 'react';
import { Editium } from 'editium';

function Editor() {
  const [content, setContent] = useState({ html: '', json: [] });

  return (
    <Editium
      toolbar="all"
      onChange={(html, json) => setContent({ html, json })}
      showWordCount={true}
    />
  );
}

Custom Toolbar

<Editium 
  toolbar={[
    'bold', 'italic', 'underline',
    'separator',
    'heading-one', 'heading-two',
    'separator',
    'bulleted-list', 'numbered-list',
    'link', 'image'
  ]}
/>

→ Full React Documentation

Vanilla JavaScript Usage

CDN (Recommended)

<script src="https://unpkg.com/editium/vanilla/editium.bundle.js"></script>

<div id="editor"></div>

<script>
  const editor = new Editium({
    container: document.getElementById('editor'),
    toolbar: 'all',
    placeholder: 'Start typing...'
  });
  
  // Get content
  const html = editor.getHTML();
  const json = editor.getJSON();
</script>

NPM

import 'editium/vanilla/editium.css';
import Editium from 'editium/vanilla/editium.js';

const editor = new Editium({
  container: document.getElementById('editor'),
  toolbar: 'all'
});

→ Full Vanilla JS Documentation

API Reference

React Props

Prop	Type	Default	Description
`toolbar`	`ToolbarItem[] \| 'all'`	Basic items	Toolbar configuration
`placeholder`	`string`	`'Start typing...'`	Placeholder text
`onChange`	`(html, json) => void`	-	Content change callback
`initialValue`	`string \| CustomElement[]`	-	Initial content
`readOnly`	`boolean`	`false`	Read-only mode
`showWordCount`	`boolean`	`false`	Show word/character count
`height`	`string \| number`	`'200px'`	Editor height
`onImageUpload`	`(file: File) => Promise<string>`	-	Custom image upload

Vanilla JS Options

Option	Type	Default	Description
`container`	`HTMLElement`	required	DOM element for editor
`toolbar`	`string \| array`	`'all'`	Toolbar configuration
`placeholder`	`string`	`''`	Placeholder text
`onChange`	`function`	-	Content change callback
`readOnly`	`boolean`	`false`	Read-only mode
`showWordCount`	`boolean`	`false`	Show word/character count
`height`	`string \| number`	`'200px'`	Editor height
`onImageUpload`	`function`	-	Custom image upload

Vanilla JS Methods

editor.getHTML()        // Returns HTML string
editor.getText()        // Returns plain text
editor.getJSON()        // Returns JSON structure
editor.setContent(html) // Set editor content
editor.clear()          // Clear editor
editor.focus()          // Focus editor
editor.destroy()        // Cleanup editor

Available items: bold, italic, underline, strikethrough, code, superscript, subscript, heading-one through heading-eight, paragraph, blockquote, code-block, bulleted-list, numbered-list, indent, outdent, left, center, right, justify, text-color, bg-color, link, image, table, horizontal-rule, undo, redo, find-replace, fullscreen, view-output, separator

Examples

Custom Image Upload

React:

const handleImageUpload = async (file: File) => {
  const formData = new FormData();
  formData.append('image', file);
  
  const response = await fetch('/api/upload', { 
    method: 'POST', 
    body: formData 
  });
  
  const { url } = await response.json();
  return url;
};

<Editium onImageUpload={handleImageUpload} />

Vanilla JS:

const editor = new Editium({
  container: document.getElementById('editor'),
  onImageUpload: async (file) => {
    const formData = new FormData();
    formData.append('image', file);
    const response = await fetch('/api/upload', { 
      method: 'POST', 
      body: formData 
    });
    const { url } = await response.json();
    return url;
  }
});

Saving Content

React:

function EditorWithSave() {
  const [content, setContent] = useState({ html: '', json: [] });

  const handleSave = async () => {
    await fetch('/api/save', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify(content)
    });
  };

  return (
    <>
      <Editium onChange={(html, json) => setContent({ html, json })} />
      <button onClick={handleSave}>Save</button>
    </>
  );
}

Vanilla JS:

const editor = new Editium({
  container: document.getElementById('editor'),
  onChange: (content) => {
    localStorage.setItem('content', JSON.stringify({
      html: content.html,
      json: content.json
    }));
  }
});

Height Configuration

// React
<Editium height={400} minHeight={200} maxHeight={600} />

// Vanilla JS
new Editium({
  container: document.getElementById('editor'),
  height: '400px',
  minHeight: '200px',
  maxHeight: '600px'
});

Keyboard Shortcuts

Shortcut	Action
`Ctrl/Cmd + B`	Bold
`Ctrl/Cmd + I`	Italic
`Ctrl/Cmd + U`	Underline
`Ctrl/Cmd + Z`	Undo
`Ctrl/Cmd + Y`	Redo
`Ctrl/Cmd + K`	Insert link
`F11`	Fullscreen
`Tab`	Indent list
`Shift + Tab`	Outdent list

Browser Support

Chrome (latest)
Firefox (latest)
Safari (latest)
Edge (latest)

Community & Support

Get Help

GitHub Issues - Bug reports and feature requests
GitHub Discussions - Questions and community support
Security: See SECURITY.md for responsible disclosure and contact instructions

Contributing

We welcome contributions! Please see our Contributing Guide for details.

Fork the repository
Create a feature branch (git checkout -b feature/amazing-feature)
Commit your changes (git commit -m 'Add amazing feature')
Push to the branch (git push origin feature/amazing-feature)
Open a Pull Request

Code of Conduct

This project follows the Contributor Covenant Code of Conduct. By participating, you are expected to uphold this code.

License

MIT License - See LICENSE file for details.

Acknowledgments

Built with Slate.js for the React version
Inspired by modern rich text editors: TipTap, ProseMirror, and Quill

Made with ❤️ by Nabarup Dev

⭐ Star us on GitHub if you find this project useful!

NPM • GitHub • Issues

editium