100% free & open source · no signup, no paywalls

The free, open-source
floor plan editor

Draw 2D floor plans, visualize them in 3D, and furnish with 140+ models — in your browser. Import iPhone LiDAR scans from Apple RoomPlan. Export to PNG, SVG, DXF, or PDF.

✓ Runs in your browser ✓ No account required ✓ Your data stays local
app.openplan3d.com
OpenPlan3D 2D floor plan editor showing wall drawing with live dimensions, doors, windows, and furniture on a blueprint grid

OpenPlan3D is a free, open-source floor plan software that runs in the browser — an alternative to RoomSketcher, Floorplanner, and SketchUp for 2D floor plans and 3D home design, with no subscription, watermarks, or account.

Everything you need

Draw in 2D. Walk through in 3D. Export anywhere.

2.10 m

2D floor plan drawing

Walls, rooms, doors, and windows with precise measurements, snap-to-grid, and imperial or metric units.

Instant 3D visualization

Switch to 3D anytime and orbit through your design. Furnish with 140+ models or import your own GLB/glTF meshes.

PNG
SVG
DXF
PDF
JSON
USDZ

Export to CAD & print

Export floor plans to PNG, SVG, DXF, PDF, or JSON — ready for AutoCAD, print, or sharing with clients.

OpenPlan3D Capture for iPhone

Scan a real room. Get an editable floor plan.

Walk the room once — iPhone LiDAR and Apple RoomPlan detect walls, doors, windows, and furniture automatically. Fine-tune on your phone, then open the plan here to keep designing.

  • Scan-to-floor-plan in seconds, no manual measuring
  • No account — scans stay on your device
  • Free, like everything else we make
OpenPlan3D
❐ Start Scanning
Recent
See All
Living Room
Today · 24.5 m²
Kitchen
Yesterday · 12.1 m²
Office
Jul 12 · 9.8 m²
Bedroom
Jul 10 · 11.4 m²
+ New scan
Captures stay on this device. Share or upload to openplan3d.com anytime.
Sample Apartment
Floor Plan
3D
LIVING · 15.2 m²
BED · 5.6 m²
Furniture
Drag to rotate
Open in OpenPlan3D
3D Splat App icon From the makers of OpenPlan3D

3D Splat App — photos into photorealistic 3D

Turn photos and videos into true-to-life 3D scenes with Gaussian Splatting, right on your Mac. No LiDAR needed — just a few photos or a short video from any camera.

  • Capture the real space first, then design its floor plan with real details in view
  • Show clients the photorealistic "before" for remodels and staging
  • Works with any camera — reconstruction runs on your Mac
From the makers of OpenPlan3D

More free, open-source apps

Same idea as OpenPlan3D — capable tools, no subscription, no account, source on GitHub.

Who it's for

One floor plan tool, many jobs

Real estate listings

Create accurate floor plans for property listings — scan with iPhone, export a clean PNG or PDF in minutes.

Remodels & renovations

Capture the existing space, then test wall changes, furniture layouts, and room configurations in 3D.

Interior design

Furnish plans with 140+ models or your own GLB meshes, and present clients a walkable 3D view.

Moving & furniture planning

Check whether the sofa fits before moving day — plan room layouts with real measurements.

Landlords & rentals

Document unit layouts and square footage with a scan instead of a tape measure.

CAD workflows

Export DXF and continue in AutoCAD or other CAD software — OpenPlan3D is the fast first draft.

How we compare

Free where the others charge

Most floor plan apps lock exports, watermarks, and CAD formats behind a subscription. OpenPlan3D gives you all of it for free — a genuine alternative to magicplan, RoomSketcher, Floorplanner, Planner 5D, and SketchUp.

OpenPlan3DmagicplanRoomSketcherFloorplannerPlanner 5DSketchUp
Free to useTrial onlyLimitedLimitedLimitedWeb only
No account required
Watermark-free exportsPaidPaidPaidPaid
2D floor plan drawing
3D visualization
iPhone LiDAR room scan
DXF / CAD exportPaidPaidPro only
Open source
See the full comparison & alternatives →

Also a free alternative to Cedreo, Coohom, HomeByMe, Homestyler, SmartDraw, Live Home 3D, and more.

Based on each product's publicly listed features and pricing as of July 2026. Competitors' plans change — check their sites for the latest.

FAQ

Common questions

Short, direct answers — also served as FAQPage structured data for search engines and AI assistants.

Is OpenPlan3D really free?

Yes. OpenPlan3D is 100% free and open source — no premium tier, no watermarks, no signup. The full source code is on GitHub.

Can I create a floor plan by scanning a room with my iPhone?

Yes. The free OpenPlan3D Capture app uses iPhone LiDAR and Apple RoomPlan to turn a one-minute walkthrough into an editable floor plan.

What formats can I export?

PNG and PDF for sharing, SVG for vector graphics, DXF for AutoCAD and CAD software, and JSON for re-editing.

Do I need an account?

No. The editor runs in your browser and plans stay on your device. No account, login, or cloud required.

How does OpenPlan3D compare to RoomSketcher or Floorplanner?

OpenPlan3D covers 2D drawing, 3D visualization, furniture, and export without subscriptions, and is fully open source with native Apple RoomPlan import.

Is there a free alternative to magicplan, RoomSketcher, or Floorplanner?

Yes. OpenPlan3D is a free, open-source alternative to paid floor plan apps like magicplan, RoomSketcher, Floorplanner, Planner 5D, and SketchUp — with no subscription, no watermarks, and no account. It covers 2D drawing, 3D visualization, iPhone LiDAR scanning, and DXF export for free.

Ready to design your space?

Free, open source, no signup. Start in your browser right now.