Canvas RichText Editor

A high-performance canvas-based rich-text editor with 100% synthetic testing

About This Demo

This is a live demonstration of the Canvas RichText Editor - a modern, high-performance text editor built entirely on HTML5 Canvas.

272
Tests Passing
100%
Test Coverage
0
Browser Required

✨ Canvas-Based Rendering

Direct pixel-level control for smooth, native-feeling text editing

🎯 Click Positioning

Precise cursor placement with intelligent line and character detection

⌨️ Full Keyboard Support

Arrow keys, typing, backspace, enter - all working seamlessly

📝 Text Selection & Clipboard

Copy (Ctrl+C), Cut (Ctrl+X), Paste (Ctrl+V), Select All (Ctrl+A), and drag & drop

↩️ Undo/Redo

Full history tracking with Ctrl+Z to undo and Ctrl+Y to redo

🔄 Word Wrapping

Automatic text wrapping with virtual newlines for long content

🎨 Rich Text Formatting

Bold, Italic, Underline, Strikethrough, Superscript, Subscript, and Text Color

🧪 100% Synthetic Testing

All 272 tests run in Node.js without a browser - no Selenium needed!

⌨️ Keyboard Shortcuts

Ctrl+Z - Undo
Ctrl+Y - Redo
Ctrl+A - Select All
Ctrl+C - Copy
Ctrl+X - Cut
Ctrl+V - Paste
Ctrl+B - Bold
Ctrl+I - Italic
Ctrl+U - Underline
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