about:blank
—

A blank canvas.

Describe a website in plain words — what it's for, the feel, the sections — and it gets built right here.

Ready. Enter to send · Shift+Enter for a new line
How it works

Your first prompt goes to the same open-weight model that powers the AI Lab — Nemotron 3 Super via NVIDIA NIM — with instructions to write one complete, self-contained HTML file: all CSS and JavaScript inline, photos from Picsum, icons as inline SVG. The answer streams into the window while it's being written, so you watch the page assemble top to bottom.

Every prompt after that is an edit. The model gets the current page plus your recent requests and returns the whole updated file, so the site evolves instead of starting over. Each result is a version — step back and forth with ‹ ›, and a new prompt from an older version branches from there. Versions are kept in your browser under aiapp.sitebuilder.v1; nothing is saved on the server.

The preview runs in a sandboxed frame with no access to this site's origin, so generated scripts can't read your cookies or other apps' data. Download gives you the exact file — open it anywhere or put it on any static host.

Honest caveat: each answer is capped at about 8,000 tokens, so very large sites can get cut off — you'll see a warning, and asking for "a simpler version" or fewer sections fixes it. Contact forms are for show: nothing is sent anywhere.