3D Floor Plan Creator

Draw a 2D layout, switch to 3D in a single click, and walk through your design before a single wall is built. Space Designer 3D is online 3D floor plan software you can use directly from your web browser. Everything runs in your web browser. No installation, no graphics card required, no separate viewer to open.

How 3D Floor Plan Design Works

Start by drawing walls in the 2D Plan view. Click to place each segment. The editor snaps to standard angles and aligns to existing walls automatically. Add doors, windows, and openings from the built-in library. Once your layout is ready, switch to 3D with one click. Your 2D plan becomes a fully navigable 3D floor plan. There is no export step, no rendering wait, no separate application.

In 3D mode, you can walk through your rooms in first-person view, orbit the model from any angle in 3D Model view, change materials and colors, and rearrange furniture. Every modification reflects in real time across both 2D and 3D views.

Step by step

1. Draw your walls in the 2D Plan view.
2. Add doors and windows from the library.
3. Switch to 3D with one click to see your 3D floor plan.
4. Drag and drop furniture from the 3D furniture catalog.
5. Walk through your design in first-person view.
6. Adjust materials, colors, and lighting in real time.
7. Export or share your 3D floor plan.

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Built-In 3D Floor Plan Capabilities

Capability	What it does
Real-time 3D rendering	Your 2D plan becomes a 3D floor plan instantly. No render wait, no file conversion.
First-person walkthrough	Move through your rooms as if you were standing inside the space.
Orbit camera in 3D Model view	Rotate, tilt, and zoom on the full 3D floor plan from any angle.
Multi-level support	Design houses with several floors, link them together, navigate between levels.
Live material swap	Change floor finishes, wall colors, countertops, and surfaces directly in 3D.
3D furniture catalog	Drag thousands of items from the catalog into your plan. Each item appears in 3D with accurate dimensions.
Sun and sky simulation	Test how natural light enters your 3D floor plan at any time of day.
Browser-based, no install	Runs in Chrome, Safari, Edge, and Firefox. No graphics card required.
Shareable 3D link	Send your 3D floor plan to clients or contractors. They view it in their browser, no account needed.

Who Uses 3D Floor Plan Software

Homeowners plan renovations and furniture arrangements before spending a dollar. The interactive 3D floor plan answers questions a 2D plan cannot: will the L-shaped sofa make the living room feel cramped? Is there enough space between the kitchen island and the dining table? You can test every option virtually.

Interior designers present 3D floor plan designs that clients can experience, not just read. Static mood boards become full 3D walkthroughs. The ability to swap materials and finishes in real time reduces revision cycles by showing options on the spot.

Real estate agents create immersive listing tours from a simple 3D floor plan. Empty apartments become staged spaces. Renovations are visualized before construction starts.

Architects use the 3D floor plan maker for early-stage concept communication with clients and stakeholders. The browser-based access means anyone can review the design without installing software.

Educators and students teach and learn spatial reasoning by going from 2D to 3D in seconds, on any school computer or Chromebook.

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Space Designer 3D vs Other 3D Floor Plan Software

Capability	Space Designer 3D	Typical 3D floor plan software
Browser-based, no download	Yes	Often desktop install
Instant 2D to 3D switch	Yes, same project	Often requires export/import
First-person walkthrough	Yes	Not always available
Live material preview in 3D	Yes	Usually 2D only
Multi-level support	Yes	Rare in free tiers
3D furniture catalog	Thousands of items	Limited
Export formats	PNG, PDF, DXF, IFC, GLTF, SVG	Often PNG only
Free plan	free plan	Varies

Frequently Asked Questions

What is 3D floor plan software?

3D floor plan software lets you design a layout and view it in three dimensions, with walls, furniture, materials, and lighting visible from any angle. Space Designer 3D is online 3D floor plan software: draw in 2D, switch to 3D, walk through the result, all in your browser without installing anything.

Is there free 3D floor plan software?

Space Designer 3D offers a free plan of the full 3D floor plan software, including the 2D and 3D editors, the furniture catalog, and basic exports. Paid plans unlock advanced features such as photorealistic rendering and CAD/BIM exports. Start for free.

What is the best 3D floor plan software?

The best 3D floor plan software depends on your needs. Space Designer 3D is trusted by users who consistently share positive reviews on Trustpilot. It runs in any browser, supports multi-level design, and includes 3D walkthrough and photorealistic 3D rendering. Compare options on our floor plan software comparison.

Can I create a 3D floor plan online for free?

You can try Space Designer 3D online with a free plan. The free plan gives full access to the 2D and 3D editors, the furniture catalog, and basic exports. Start for free.

Do I need a powerful computer for 3D?

No. Space Designer 3D runs in your browser using WebGL, supported on virtually all modern computers including laptops and Chromebooks. No dedicated graphics card is required.

Can I draw a 3D floor plan for a multi-story building?

Yes. You can create multiple floors and link them together. Each level has its own 2D plan and shares a common 3D view. Navigate between levels with one click, or view the full building at once.

Is the 3D floor plan accurate?

Yes. Every wall, door, window, and item placed in your 2D plan has real-world dimensions. The 3D view is a true geometric representation of your design, not a stylized illustration.

Can I share my 3D floor plan with a client?

Yes. Generate a shareable link and send it by email or messaging. The recipient opens the 3D floor plan in their browser, with no account or installation required.

What if I want a photorealistic render of my 3D floor plan?

The real-time 3D walkthrough is included with all plans. For photorealistic images, see our 3D rendering features: one-click renders, AI Boost, and shareable embeds.

How is this different from a 2D floor plan tool?

A 2D-only tool gives you a top-down layout. Space Designer 3D gives you both: the 2D plan you draw and the 3D floor plan experience of standing inside that plan, in the same project. See our 2D floor plan editor.