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
- Copy an image to your clipboard.
- Click the pencil in the status bar, or press
Cmd+Shift+Aon macOS (Ctrl+Shift+Aon Windows and Linux). - Draw on the image.
- Click Copy, then paste into your AI chat with
Cmd+V.
Keyboard shortcuts (inside the editor)
| Key | Action |
|---|---|
V |
Select |
P |
Pen |
A |
Arrow |
R |
Rectangle |
T |
Text |
C |
Crop |
B |
Redact |
N |
Numbered step |
Cmd/Ctrl + Z |
Undo |
Cmd/Ctrl + Shift + Z |
Redo |
Cmd/Ctrl + scroll |
Zoom |
Cmd/Ctrl + 0 |
Reset zoom |
Cmd/Ctrl + Enter |
Copy |
Esc |
Close |
Settings
| Setting | Default | What it does |
|---|---|---|
snapmark.clipboardDetection |
true |
Highlights the status bar when a new image lands on your clipboard. |
snapmark.maxDimension |
1920 |
Longest edge (in pixels) when copying. Set to 0 to keep the original size. |
Privacy
Snapmark runs entirely on your machine. No network calls, no telemetry, no accounts. It only reads and writes your clipboard.
License
MIT