Snapmark

Annotate screenshots on your clipboard, then paste them into AI chats like Claude, Copilot, and Cursor. Runs locally.

Use it

Copy an image. A pencil lights up in your VS Code status bar. Click it, draw on the screenshot, hit Copy. Paste into your chat.

If there is no image on the clipboard, click the pencil anyway. You can drag an image file in, paste one with Cmd+V, or pick a file from your computer.

Features

• Redact sensitive areas (API keys, names, anything you don't want in the image)
• Drop numbered step markers onto UI flows
• Pen, arrow, rectangle, ellipse, text, highlight, crop
• Zoom with Cmd/Ctrl + scroll or a trackpad pinch
• Resize large screenshots automatically on copy
• Pencil in the status bar lights up when you copy a new image

Install

code --install-extension snapmark-1.0.0.vsix

Linux users need xclip (X11) or wl-clipboard (Wayland). macOS and Windows work as-is.

How to use it

1. Copy an image to your clipboard.
2. Click the pencil in the status bar, or press Cmd+Shift+A on macOS (Ctrl+Shift+A on Windows and Linux).
3. Draw on the image.
4. Click Copy, then paste into your AI chat with Cmd+V.

Keyboard shortcuts (inside the editor)

Settings

Privacy

Snapmark runs entirely on your machine. No network calls, no telemetry, no accounts. It only reads and writes your clipboard.

License

MIT