Architect 3D is a free browser-based floor-plan editor. Draw your rooms in 2D, then explore them instantly in 3D — no files or uploads are required to get started, and the result is an interactive 3D model of your space.
Start in the Floor Plan view and draw the walls of your space. You can snap to the grid and set the measurement unit (m, cm, ft) from the Interface & Configuration panel.
Use the Floor Plan / 3D toggle to walk around your model in three dimensions and check proportions from any angle.
Open the Controls panel and use the door and window tools to cut openings into the walls you have drawn. Furniture placement and wall/floor material presets are still being added to the editor.
Use the toolbar to save your design or export it so you can continue later or share it.
The editor opens in a new tab. It runs entirely in your browser — no account is needed.