3D architecture, reimagined for the browser

Design buildings in 3D.
Visualise them in minutes.

Sim Architect Designer is a browser-native studio for students and professionals — sketch with AI, build real structures, place them on a real map, and export client-ready visuals without installing a thing.

No download · No credit card · Works in your browser

Everything in one canvas

From first sketch to final render

A complete toolset that takes you from idea to a polished, shareable visual.

AI drafting

Describe a space in plain language and watch it become editable 3D geometry — walls, rooms, the lot.

Real-world context

Drop your design onto a real map with accurate sun and shadows for true-to-life studies.

One-click export

Capture poster-quality screenshots and smooth 360° turntable videos straight from the viewport.

Real building tools

Walls, slabs, roofs, stairs, doors and windows — with smart snapping and live measurements.

Furnish & zone

A rich asset library plus your own GLB/FBX uploads, organised into functional zones.

Cloud projects

Your work saves to your account automatically and follows you across every device.

How it works

Three steps to a finished concept

01

Draft

Sketch with tools or describe it to the AI — your layout appears in 3D.

02

Design

Refine walls, add furniture, set the site, and dial in the lighting.

03

Export

Grab a screenshot or turntable video and share it anywhere.

Built for

Whether you're learning or shipping

Students

Learn by building

Understand structure and space hands-on. Go from blank canvas to a portfolio-ready render in minutes — free, no install.

  • Zero setup, runs in the browser
  • Sketch ideas fast with AI
  • Export submissions instantly
Professionals

Pitch in record time

Skip hours of render setup. Massing, context and client-ready visuals without leaving the tab.

  • Real-world site context
  • Precise measurements
  • Screenshot & video exports
Teams

Share a single source

Send a link, align stakeholders, and iterate on one living model instead of a pile of files.

  • Cloud-synced projects
  • Shareable views
  • Built for fast feedback

Your first design is a click away.

Open the studio and start building. It's free, and it runs entirely in your browser.

Launch Sim Architect Designer