Build a site, store, or web app from one prompt
B12 is an AI website builder that builds more than sites. Describe what you want, a website, an online store, a web app, a business tool, and the AI builds the whole thing in two minutes.
Generate my site
More than an AI website builder
Other builders can get you a site. B12 builds one that works the way you ask, with real logins, payments, and bookings wired in, just by describing what you want.
Built by AI, shaped by you
The draft you get back is built around what you described. If you said “online store for handmade ceramics,” that’s what shows up: relevant pages, copy, layout, and features. No generic starter site to completely rebuild.
To edit, chat with the AI Agent the way you’d talk to a designer: “make the hero darker,” “add a pricing page,” “write a launch post about our new collection.” Or open the visual editor and click anything you want to change. Most people end up using both.
- Edit by chatting with AI
- Click any element to focus your edits
- Upload a screenshot to show the AI what you want
- Generate images and text right inside B12
What you can create
Websites
An AI website builder for businesses, startups, nonprofits, and agencies, complete with the pages, copy, and layout your work needs.
Explore websitesOnline stores
An AI online store builder that stands up product pages, checkout, and invoicing so you can start selling in minutes.
Payments & invoicingPortfolios
Portfolio sites for designers, photographers, studios, and freelancers, built to put your work front and center.
See portfolio templatesBlogs and editorial
Blogs and editorial sites with a clean reading experience, plus AI that helps you draft, format, and publish posts.
Start a blogWeb apps
An AI web app builder with real logins, dashboards, and databases behind the pages, from calculators to trackers to generators.
Backends & web appsBusiness tools
Build an interactive business tool with AI, like a loan calculator or quote generator. Ask for it and lead capture gets built in too.
Business tool templatesFeatures that come with the site
Commerce, forms, contact management, email marketing, and analytics all run through B12, with your site’s branding baked in.
Join the 4M+ websites created with B12
Why people choose B12 to bring their ideas online.
B12 has raised the entire bar of website professionalism.
Heather Carnes
The best website builder by a huge margin. I can honestly say that I have never experienced any website builder that was so easy to use, intuitive, and that produces such high-quality, professional results.
Drew
With B12, I feel supported and I think it’s absolutely realistic to grow my business. It has saved me countless hours.
Stephanie Roberts
Exceptional service with a human touch. Highly recommended for anyone seeking a partner that values integrity and relationships just as much as technical excellence.
Poloko Ntshatsha
B12's AI has been a game-changer — intuitive, efficient, and truly supportive of our mission. It keeps The Rainbow Disruption running seamlessly.
Jarvis Sam
I don't think I've ever had an easier experience setting up a website for my business. You simply provide what you're doing for business and the purpose of the website and BOOM! AI sets it up for you professionally.
FreeForAllKing
I was drawn to B12's use of AI, then seeing how nimble it was, I signed up that day. You literally click and it designs everything for you.
Gerry Sandusky
THANK YOU for creating such a user-friendly platform! Keep up the great work, your design makes a real impact for small business owners like me!
Brian Fenlon
B12 has raised the entire bar of website professionalism.
Heather Carnes
The best website builder by a huge margin. I can honestly say that I have never experienced any website builder that was so easy to use, intuitive, and that produces such high-quality, professional results.
Drew
With B12, I feel supported and I think it’s absolutely realistic to grow my business. It has saved me countless hours.
Stephanie Roberts
Exceptional service with a human touch. Highly recommended for anyone seeking a partner that values integrity and relationships just as much as technical excellence.
Poloko Ntshatsha
B12's AI has been a game-changer — intuitive, efficient, and truly supportive of our mission. It keeps The Rainbow Disruption running seamlessly.
Jarvis Sam
I don't think I've ever had an easier experience setting up a website for my business. You simply provide what you're doing for business and the purpose of the website and BOOM! AI sets it up for you professionally.
FreeForAllKing
I was drawn to B12's use of AI, then seeing how nimble it was, I signed up that day. You literally click and it designs everything for you.
Gerry Sandusky
THANK YOU for creating such a user-friendly platform! Keep up the great work, your design makes a real impact for small business owners like me!
Brian Fenlon
B12 has raised the entire bar of website professionalism.
Heather Carnes
The best website builder by a huge margin. I can honestly say that I have never experienced any website builder that was so easy to use, intuitive, and that produces such high-quality, professional results.
Drew
With B12, I feel supported and I think it’s absolutely realistic to grow my business. It has saved me countless hours.
Stephanie Roberts
Exceptional service with a human touch. Highly recommended for anyone seeking a partner that values integrity and relationships just as much as technical excellence.
Poloko Ntshatsha
B12's AI has been a game-changer — intuitive, efficient, and truly supportive of our mission. It keeps The Rainbow Disruption running seamlessly.
Jarvis Sam
I don't think I've ever had an easier experience setting up a website for my business. You simply provide what you're doing for business and the purpose of the website and BOOM! AI sets it up for you professionally.
FreeForAllKing
I was drawn to B12's use of AI, then seeing how nimble it was, I signed up that day. You literally click and it designs everything for you.
Gerry Sandusky
THANK YOU for creating such a user-friendly platform! Keep up the great work, your design makes a real impact for small business owners like me!
Brian Fenlon
AI website builder FAQs
An AI website builder like B12 turns a plain-language prompt into a complete, editable website in about two minutes, stores and web apps included. Edit it in the visual editor, the code editor, or just by chatting with the AI Agent. It’s why small businesses rate B12 the best AI website builder for getting online fast.
Yes. B12 builds online stores with fully functional checkout and cart experience, and web apps with logins and databases, alongside standard websites.
You get a first draft in about two minutes, then refine it by chatting with the AI or using the visual editor.
You tell B12 what you want, and AI drafts the whole thing: pages, layout, copy, structure. From there, edit it however you like, either by chatting with the AI Agent or clicking elements in the visual editor. The AI Agent will also suggest improvements as your site grows.
Yes. You can build the whole thing yourself with AI, or bring in a B12-vetted designer, copywriter, or SEO specialist through our Expert Marketplace for more refinement.
You can generate online stores, portfolios, blogs, web apps, business tools, and more. It’s the same prompt-driven generation process for all of them.
Yes. You can generate a website and start using the editor for free. Pick a paid plan when you're ready for additional AI credits, a custom domain, and all the premium features.
Yes. Connect one you already own, or buy a new one through B12 (free for the first year on paid plans).
There's a free tier with a B12 subdomain, plus paid plans with custom domains, more AI credits, and built-in commerce. You’ll find a full breakdown on the pricing page.
Running a small business? See our guide to the best AI website builder for small business
Describe it. We'll build it.
Type a prompt, get a real site back. Refine it, expand it, launch it.
