Flutter Advanced HTML Editor

A powerful and customizable HTML editor for Flutter.

A comprehensive and feature-rich HTML editor for Flutter applications. It provides a powerful rich text editing experience with extensive formatting options, customizable themes, and a flexible toolbar system.

🎬 Demo

✨ Features

🎨 Rich Text Formatting: Bold, italic, underline, strikethrough, colors, fonts, and sizes

📝 Content Structure: Headings, paragraphs, lists, blockquotes, and code blocks

🔗 Media Support: Insert links, images, and tables

🎭 Customizable Themes: Light, dark, and custom theme support

🛠️ Flexible Toolbar: Choose only the buttons you need

↩️ Undo/Redo: Full history support

📱 Responsive: Works across all screen sizes

🔧 Easy Integration: Simple API with clear documentation

🚀 Quick Demo HtmlEditorWidget( controller: HtmlEditorController(), theme: HtmlEditorTheme.light(), initialContent: '

Hello World 👋

', )

📦 Installation

Add this to your pubspec.yaml:

dependencies: flutter_advanced_html_editor: ^1.0.0

Run:

flutter pub get

📘 Basic Usage import 'package:flutter/material.dart'; import 'package:flutter_advanced_html_editor/flutter_advanced_html_editor.dart';

class MyEditorPage extends StatefulWidget { @override _MyEditorPageState createState() => _MyEditorPageState(); }

class _MyEditorPageState extends State { late HtmlEditorController _controller;

@override void initState() { super.initState(); _controller = HtmlEditorController(); }

@override void dispose() { _controller.dispose(); super.dispose(); }

@override Widget build(BuildContext context) { return Scaffold( appBar: AppBar(title: Text('HTML Editor')), body: HtmlEditorWidget( controller: _controller, theme: HtmlEditorTheme.light(), height: 400, initialContent: '

Start writing...

', onContentChanged: (content) { print('Content changed: $content'); }, ), ); } }

⚡ Advanced Usage 🎨 Custom Theme HtmlEditorWidget( controller: _controller, theme: HtmlEditorTheme.custom( primaryColor: '#2196F3', backgroundColor: '#FFFFFF', textColor: '#000000', toolbarBackgroundColor: '#F5F5F5', ), )

🛠️ Custom Toolbar HtmlEditorWidget( controller: _controller, theme: HtmlEditorTheme.light(), customToolbarItems: [ HtmlEditorToolbarItem.bold, HtmlEditorToolbarItem.italic, HtmlEditorToolbarItem.underline, HtmlEditorToolbarItem.textColor, HtmlEditorToolbarItem.alignLeft, HtmlEditorToolbarItem.alignCenter, HtmlEditorToolbarItem.alignRight, HtmlEditorToolbarItem.unorderedList, HtmlEditorToolbarItem.orderedList, HtmlEditorToolbarItem.link, HtmlEditorToolbarItem.image, ], )

🎮 Controller Methods // Get HTML content String htmlContent = await _controller.getHtml();

// Set HTML content await _controller.setHtml('

New Content

');

// Insert at cursor await _controller.insertHtml('Bold text');

// Formatting await _controller.bold(); await _controller.italic(); await _controller.underline(); await _controller.setTextColor('#FF0000');

// Undo/Redo & Management await _controller.undo(); await _controller.redo(); await _controller.clear(); await _controller.focus();

// Stats int wordCount = await _controller.getWordCount(); int charCount = await _controller.getCharacterCount(); bool hasContent = await _controller.hasContent();

🛠️ Toolbar Items

Full list of available items:

undo, redo, bold, italic, underline, strikethrough, textColor, backgroundColor, fontFamily, fontSize, alignLeft, alignCenter, alignRight, justify, unorderedList, orderedList, indent, outdent, link, image, table, code, removeFormat, heading1, heading2, heading3, paragraph, blockquote, horizontalRule.

🎭 Themes // Predefined HtmlEditorTheme.light(); HtmlEditorTheme.dark();

// Custom HtmlEditorTheme.custom( primaryColor: '#2196F3', backgroundColor: '#FFFFFF', textColor: '#000000', toolbarBackgroundColor: '#F5F5F5', );

🔔 Callbacks HtmlEditorWidget( onContentChanged: (content) => print("Changed: $content"), onSelectionChanged: (selection) { print("Selected: ${selection['selectedText']}"); }, )

💻 Platform Support

✅ Android

✅ iOS

✅ Web

✅ macOS

✅ Windows

✅ Linux

📋 Requirements

Flutter >=3.0.0

Dart >=3.0.0

📚 Dependencies

webview_flutter: ^4.4.2 – Render HTML editor

file_picker: ^6.1.1 – Image/file selection

🛤️ Roadmap

RTL support improvements

Insert videos & embeds

Extend plugin system (custom buttons)

Export to Markdown

❓ FAQ

Q: Does it support RTL (Arabic)? A: Basic support exists.

Q: Can I get plain text instead of HTML? A: Yes, use the controller methods.

Q: Does it work on both mobile & web? A: Yes, fully supported.

🤝 Contributing

Contributions are welcome! Please open an Issue or submit a PR.

📜 License

This project is licensed under the MIT License – see LICENSE.

📌 Changelog

See CHANGELOG.md for details.