A free online graph paper app for drawing in your browser

GraphPaper is a browser-based graphpaper canvas for sketching diagrams, geometry, floor plans, and notes on an infinite grid. No sign-up, no install; it runs entirely in your browser and is free to use. It also happens to be a half-decent SVG editor: open an SVG file, convert it to editable shapes, and export it right back to SVG.

• Infinite pannable, zoomable graphpaper grid
• Grid snapping for precise, repeatable diagrams
• Lines, boxes, circles, curves, arrows, and text
• Freehand pencil and fill patterns (hatch, cross-hatch, dots)
• Real-world scale with a live dimension readout while you draw
• Import SVG files and convert them to editable shapes
• Export to PNG or SVG, or share a snapshot link
• Works in any modern browser; free, private, no account