3D House Planner: Free Browser 3D Home Design with AI & BIM Guide 2026

AI design assistant

Describe a room, a house or the furniture you want — or attach a plan, a photo or a model. The assistant builds with the same tools as you: walls, doors, windows, floors, roofs and catalog objects, each with the right gizmo and textures.

Go from a text prompt like “3-bedroom house with a gable roof” to a furnished layout without drawing every wall by hand.

Live 2D 3D sync

Draw in 2D and see it in 3D, move a wall in 3D and the plan follows. No more “Generate”. Sculpt the terrain and contour lines appear on the plan.

Your floor plan and 3D model stay in sync at all times, so edits never need a manual rebuild.

BIM in the browser

Every wall, slab, opening and object carries IFC classes and properties. Get quantities, cost estimates and model checks, and exchange files with your BIM and CAD tools. IFC4 import and export with property sets, areas, volumes, schedules and budget in CSV, plus model check for overlaps, missing hosts and empty levels.

Produce real BIM data and cost estimates directly in the browser, then hand files to your BIM and CAD tools.

From draft to photo-real

Pick how much your computer should work: from a light draft mode for any laptop up to Ultra, with soft shadows, ambient occlusion, reflections and tone mapping — plus AI photos of the current view.

Choose Draft, Balanced, High or Ultra depending on your hardware, and generate AI photos of the current view.

Import and export anything

Bring plans, models and drawings in, take them anywhere. Supported formats include IFC, DXF, GLB, glTF, OBJ, STL, SVG, PNG, CSV and JSON. Import GLB, glTF, OBJ, STL, Babylon, IFC and DXF files, or start from a floor plan image.

Move your project freely between BIM, CAD and 3D printing workflows.

Saved in your browser

Projects, autosave and crash recovery live in your browser storage (IndexedDB). No account, no upload, no database — and you can export everything at any time. No cloud storage, no login required, and no design data collected.

Your designs remain private and portable, with nothing uploaded to a server.

• Genuinely free for personal and commercial useThe site states 3D House Planner is '100% free, also for commercial use' and 'absolutely free for all,' with no login, no watermark, and no installation required. Donations are accepted but optional.
• AI assistant that builds with the same tools as youThe AI design assistant can take a text description — e.g. '3-bedroom house with a gable roof' — or an attached plan, photo, or model, and builds using walls, doors, windows, floors, roofs, and catalog objects with the right gizmo and textures.
• Live 2D 3D sync and BIM in the browserDraw in 2D and see it in 3D, or move a wall in 3D and the plan follows — no 'Generate' step. Every wall, slab, opening, and object carries IFC classes and properties, with IFC4 import/export, property sets, and CSV schedules.
• Broad import/export and visualization optionsSupports IFC, DXF, GLB, glTF, OBJ, STL, SVG, PNG, CSV, and JSON, plus 50 floors per project and 5 visualization modes from Draft to Ultra with soft shadows, ambient occlusion, reflections, and tone mapping.

• Projects are stored in your browser, not the cloudProjects are saved in your own browser (IndexedDB) with autosave and crash recovery. Nothing is uploaded to servers, so you must export files to continue later or move between devices — there is no cloud storage.
• AI assistant output should be verifiedThe AI builds with the same tools as you and can produce walls, rooms, doors, windows, roofs, and furniture, but the site does not claim the result is construction-ready. Treat AI-generated layouts as a starting point and review them.
• BIM export is IFC4-focusedThe site explicitly lists IFC4 import and export with property sets, plus DXF and GLB/glTF. It does not claim support for other BIM formats or certifications, so confirm compatibility with your specific BIM/CAD tools before relying on it.
• No login means no account-based sync or support guaranteesThere is no login and no account, so your work is private but tied to your browser. The site does not describe account recovery, team collaboration, or paid support tiers — plan to export and back up your files yourself.

Client Proposal Acceleration

Design firms can generate a 3D walkthrough within a client meeting, turning abstract sketches into tangible experiences that close deals faster.AI Room Planner offers a comparable speed‑first approach for quick mock‑ups.

Marketing Asset Creation

Real‑estate developers export WebGL models to embed on property sites, providing prospective buyers with interactive tours.

Design Collaboration

Interior design teams edit the same scene from different offices, leaving comments that keep everyone aligned.

Renovation Planning

DIY homeowners experiment with layout changes before purchasing materials, reducing costly mistakes.

Start designing for free via the main call-to-action button.

Open the 2D planner directly if you prefer a flat starting view.

Draw, describe to AI, or import a file as your first action.

Keep projects saved locally in your browser storage without any login.