Simple Plan Space
Design house floor plans in your browser — free, no signup.
What is Simple Plan Space?
Free, open-source floor plan designer that runs in your browser. No downloads, no forced signups. Draw rooms with drag-and-drop, place doors, windows, and columns, manage multiple floors, and set real wall thickness. Includes area tracking with coverage breakdown, staircase calculator, undo/redo, metric/imperial units, and PDF export. Works fully on mobile. Everything auto-saves to your browser — optionally sign in to sync across devices. Built with React and SVG. Your plans, your way.
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