Online Whiteboard
A single-device drawing whiteboard you can export as PNG.
🔒 Runs entirely in your browser — nothing is uploaded. This is a single-device sketchpad, not a shared/collaborative whiteboard.
How Online Whiteboard works
How does the whiteboard actually draw?
It's a single HTML5 <canvas> element listening for pointer events — pointerdown, pointermove, pointerup, and pointerleave — which cover mouse, touch, and stylus input through one unified API. Each stroke is built by calling moveTo and lineTo on the 2D context and then stroke(), using whatever color and brush size (1–30px) are currently selected. Resizing the browser window redraws the existing artwork onto the newly sized canvas instead of wiping it.
When would I use this?
It's a quick sketchpad for roughing out a diagram, annotating an idea while screen-sharing, or doodling — anywhere you want pen-on-screen without opening a full design app.
Is this a shared whiteboard, and what happens to my drawing when I leave?
No — the page states outright that it's a single-device sketchpad, not a collaborative one, so there's no way for anyone else to see or join your canvas. Nothing is auto-saved either: the canvas isn't written to localStorage, so reloading the page clears it, and the only way to keep a drawing is the Download PNG button before you navigate away.