MVP · Alpha
Flowcharts, ER diagrams, UML, mind-maps — a fast, keyboard-driven canvas. Start instantly, no account needed.
Newest first. The new tools are under Lines & areas in the Tools panel on the left; Export is in the toolbar above, with the theme and grid buttons in its top-right corner.
A line is now two points: drag it out, then drag either end anywhere. The new Polygon tool draws an area corner by corner — click the first corner again to close it. Drag a corner to move it, click between two corners to add one, or select one and press Delete.
Click Export, then Image: a preview, an optional transparent background, and 1× / 2× / 3× for PNG. The SVG is redrawn from the diagram rather than screenshotted, so it stays sharp at any size and opens in Illustrator or Inkscape. Free, like the rest of this.
Switch between the dark canvas and a light one. Your choice is remembered. Shapes you already drew keep their own colours — new ones are drawn to suit whichever canvas you're on.
Click to step the background grid through normal → faint → off. Handy for reading a finished diagram or taking a clean screenshot. Snapping still works either way.
This is an early alpha. Nothing is uploaded to a server — your work is saved locally, in this browser, on this device.
Export anything you'd be annoyed to lose.