Pick a colour and a brush size, then draw with the mouse or your finger. One Undo removes the whole last stroke, and Save image downloads the sketch as a white 1000 × 500 PNG — the drawing stays in the page and is never uploaded.
Runs locally in your browserPick a colour and a brush size, then draw with the mouse or your finger. Every press-and-drag counts as one stroke, so a single Undo removes the whole line you just drew.
The sketch stays in this page: it is never uploaded, and it disappears when you reload. Save image redraws it on a white 1000 × 500 canvas and downloads it as kivtools-drawing.png.
Undo works per stroke: a press-drag-release is one step, so a long line disappears in a single click instead of vanishing segment by segment. Ctrl+Z and Cmd+Z do the same as the button.
Clearing the board also empties that history, so the undo clicks that follow a Clear cannot pull back strokes from before it.
Save image copies the strokes onto a fresh white 1000 × 500 canvas and downloads the result, so the file holds the drawing only — no cursor marks, no toolbar and no page background.
Ctrl+S is intercepted for the same download, which keeps the browser’s own save dialog out of the way. The filename is always kivtools-drawing.png.
The canvas accepts mouse, trackpad and touch input. A stroke ends when you release the button or lift your finger, even if you release outside the board — coming back over the canvas without pressing does not continue the line.
The board is a fixed 1000 × 500 surface displayed at the same 2:1 shape at any window width, so what you see on screen keeps its proportions in the PNG.
There is no redo, no eraser and no text or shape tool; the palette offers eight colours and seven brush sizes from 3 to 25 pixels.
The drawing lives in the page’s memory. Reloading, closing the tab or switching away loses it, because nothing is stored or sent to a server.