Coretan

About

Coretan — Draw & Annotate on Any Web Page

Coretan is a lightweight drawing and annotation tool that lets you sketch, write, and mark up any web page directly in your browser. Perfect for designers, developers, teachers, students, and anyone who needs to give visual feedback on web content.

✏️ DRAWING TOOLS
• Pencil — Freehand drawing with adjustable stroke width
• Shapes — Rectangle, circle, line, and arrow tools
• Text — Add text labels anywhere on the page with customizable font size
• Eraser — Remove parts of your drawings easily

🎨 FULL COLOR CONTROL
• 30 color presets for quick selection
• Custom hex color input
• Native color picker wheel
• Separate outline and fill color controls
• Transparent fill support

🔍 SMART ANNOTATE
• Click any element on a web page to annotate it
• Automatically detects and highlights page elements
• Add labels and descriptions to annotated elements
• Generate structured AI-ready prompts from your annotations
• Copy annotations to clipboard with one click

🛠️ POWERFUL EDITING
• Select, move, and resize any drawn object
• Undo / Redo support (Ctrl+Z / Ctrl+Y)
• Duplicate objects (Ctrl+D)
• Delete selected objects
• Clear all drawings at once

📸 EXPORT
• Export your annotated page as a PNG image
• Share visual feedback with your team

⌨️ KEYBOARD SHORTCUTS
• V — Select / Move
• P — Pencil
• T — Text
• S — Shape
• E — Eraser
• A — Smart Annotate
• Esc — Deselect / Cancel

🔒 PRIVACY FIRST
• No data collection — zero tracking, zero analytics
• All drawings and annotations stay local in your browser
• No external server connections
• No account or login required

Coretan works on any web page. Simply click the extension icon, hit "Start Coretan", and begin drawing. A floating toolbar appears at the top of the page with all your tools. Drag the toolbar anywhere you like. When you're done, export your work as PNG or simply close the overlay.

Built with ❤️ by Awan Digitals