✏️ Annotation pad

Draw on your computer screen from your phone

Put an image or a page on your computer and mark it up with your finger. Pen, highlighter, undo and eraser on the phone; the result appears live on the big screen. No app, no tablet, free to start.

Pen & highlighterUndo & eraserLive on screenSave the result
Scan to start
Waiting for phone…
Camera won’t scan it? Open /join on your phone and enter
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Teachers

Draw over a slide or a worksheet while the class watches the projector.

Trades & inspections

Circle the damage on a photograph and send the marked-up copy straight on.

Designers & reviewers

Sketch a change over a mockup without reaching for a graphics tablet.

Questions

What can I annotate?

Any image you drop on the page, or a PDF page. The marked-up copy saves as a PNG.

Does it need a stylus?

No — a finger is enough. If your phone supports a stylus, pressure makes the line thicker.

Does my drawing appear straight away?

Yes. Strokes stream to the computer as you draw, so the big screen keeps up with your finger.