What startupjs.ai is, a 10-minute walkthrough of your first site, and how to get the most out of the AI Builder.

Pages, design, content, images, testing — how each part of your site comes together as you describe it.

Give your site superpowers — visitor accounts, emails, card payments, its own AI assistants, and external services.

Plans and billing, project settings, custom domains, the Trash, and how to reach a human.

Connect your own AI agent, host an app you already have, or export your site and run it anywhere.

Quick answers to the questions everyone asks.