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Draw on screen in Windows 11
Write over any app or the desktop, and the keyboard shortcut that switches drawing on and off.
1-minute product demo
See OS Pen draw on your screen and on a whiteboard
A real screen recording on Windows: writing over the desktop, switching to a blank white board, choosing colours and sketching, then clearing the board. No edits, no voice-over.
Snowfairy AI OS Pen on Windows · 1:19
What happens in the demo
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The tools from the demo, explained
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Digital whiteboard for Windows
Backgrounds, grid mode, rulers and saved sessions for the board you saw in the demo.
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Setup videos and tool guide
Short videos for installing OS Pen on Windows and Android, and for showing and hiding the toolbars.
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Everything OS Pen does on Windows
Shapes, spotlight, laser pointer, screenshots, recording and precision tools.
Try it on your own screen
Pen, Eraser and Screenshot are free, with no account needed.