How to use Online whiteboard
- 1
Pick a tool
Choose the pen for lines that thicken with stylus pressure, the translucent marker for highlighting, or the eraser.
- 2
Draw
Sketch with a mouse, a finger or a pen tablet; the board keeps a 16:10 shape and scales to your screen without distorting.
- 3
Fix mistakes
Undo with Ctrl+Z and redo with Ctrl+Shift+Z, as many steps back as you like, even after clearing the whole board.
- 4
Save the picture
Click Export PNG for a 3200 × 2000 image with a white or dark background, ready for slides, chats or documents.
Limits and Pro
Free with no sign-up: one board per browser with unlimited strokes and undo steps, 6 preset colours per board style plus a custom colour, pen sizes from 1 to 40, and PNG export at 3200 × 2000 pixels.
About Online whiteboard
This whiteboard is a drawing surface for explaining something quickly: a floor plan for a moving company, the boxes and arrows of a system design, a maths problem for a student, or a doodle while you are on a call. It opens straight onto the board, with three tools and a handful of colours, so there is nothing to learn before the first line.
The pen responds to pressure from a stylus, such as an Apple Pencil, a Surface Pen or a Wacom tablet: press harder for a bolder line. With a mouse or a finger the width stays even. The marker draws a see-through stroke that doesn't darken where it crosses itself, which is useful for highlighting part of a diagram. The eraser removes ink but leaves the board colour, and the dark board swaps the pen colours for light ones so chalk-style drawings stay readable.
Every stroke is stored as a list of points rather than as pixels, so the board redraws sharply when you resize the window or rotate a tablet, and undo works stroke by stroke. Drawings save to this browser automatically and come back the next time you open the page.
It is a single board for one person: there is no real-time collaboration, no infinite canvas, no shapes or text tool, and no way to import an image to draw on.
Privacy
Your drawing never leaves the device. Strokes are kept in this browser's IndexedDB storage and exported to PNG on your own computer; no image, stroke or pointer data is sent to our server or any other service. Clearing the site's data deletes the board, so export a PNG first if you want to keep it.