Floor Plan AI is a free browser-based 2D floor plan editor: draw at true scale without an account and export watermark-free PNG with no plan limit. Two ways to start — trace over a photo of an existing plan by marking one known dimension so the whole drawing rescales automatically, or draw on a blank grid in feet or metres with walls snapping to real lengths. Room areas update live while you draw, feeding a room schedule and a cost estimate panel. A library of architectural symbols (door swings, windows, stair arrows, bathtub, stove, wardrobe) and furniture comes with real dimensions by default and stays adjustable. Multi-level projects handle basements, attics and mezzanines with stairwells. Export options: free watermark-free PNG, print-to-scale PDF, and DXF as a one-time upgrade. Built for renters checking furniture fits, owners testing renovations, and agents preparing listings.