Drawing Board - Free Online | ToolXHub

After opening the page, a blank canvas is displayed, with toolbars on the left: brushes, erasers, lines, rectangles, circles, text, fills, etc. After selecting the brush, you can adjust the thickness, color, and transparency. Supports layer management, undo and repeat, canvas scaling and panning. When finished, output to PNG, JPEG, or JPEG.

The drawing board is implemented based on the Canvas 2D API. The brush collects coordinates through the mousemove/touchmove event and uses the Bezier curve to smooth handwriting. Eraser uses globalCompositeOperation ="Destination-out". Use fillText as text. All of this runs locally in the browser.

Ideal for quickly drawing sketches, flowcharts, mind maps or making annotations on screenshots. It is also used for blackboard writing presentations in teaching scenarios or whiteboard discussions in meetings.

The online artboard tool provides canvas and brush tools, supports multiple brushes, colors and thicknesses, and can output pictures for sketches and annotations.