B12 is the easiest way to build websites, apps, and stores with AI. Just describe what you want.

New York, NY
Joined April 2015
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Introducing B12 3.0, the biggest evolution of our platform yet. Turn a short prompt into a complete website, store, or web app you can shape however you imagine.
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A good photo with the wrong background is easy to fix now. One click in the B12 editor removes it, and then you describe the new background you want, like “a cozy pet shop” or “a sunny beach.” You can also edit anything else in the photo just by typing what you want, like “remove the car” or “make it nighttime.”
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Your Agent can now test your site the way a visitor would. With the agent-browser skill, it clicks through your pages, menus, and forms and catches the errors real visitors run into. It sends screenshots and recordings to your chat, then suggests fixes. You approve each one before anything changes. It works on your published site, a preview before you publish, and public pages like a competitor's. Try asking: - "Submit my contact form and tell me if it works." - "Check my competitor's pricing page and tell me what changed." Add agent-browser from the Agent pane in your editor.
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Why do so many rescues go without a website? There's always an animal that needs help first. Thanks to @catster for covering our free websites program for NYC rescues with Bodega Cats of New York! We're still taking applications to give away 25 free sites: b12.io/nyc-animal-rescues catster.com/weekly-mews/free…
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You can have a website up and taking sales by tomorrow, even if you've never built one. Our own Dan Mulé walked through exactly how with @Entrepreneur last week. He covers the one decision that makes everything else easier, the details that get people to buy, and how to keep an AI-built site feeling like yours. Watch the replay for free: entrepreneur.com/events/how-…
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Today at 2 pm ET: don't miss a free live virtual @Entrepreneur event where B12's Partnership Account Manager Dan Mulé shows you how to launch your website in 60 minutes with AI, no code required. He'll cover how to define your website's goal, the proven design elements that drive sales, and how to sharpen your copy, structure, and visual direction, then take your questions live. There's still time to sign up: info.entrepreneur.com/how-to…
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B12 is teaming up with Bodega Cats of New York to give away free websites to 25 NYC animal rescues. Applications are now open. Rescues run on volunteers and donations, with barely enough hours to answer adoption messages, coordinate fosters, and cover vet bills, so we built templates to help them launch without losing more time. If you know an NYC rescue, send this their way: b12.io/nyc-animal-rescues/
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One week from today: don't miss a free live virtual @Entrepreneur event with Dan Mulé, B12's Partnership Account Manager on Sept. 17 at 2 pm ET. He'll cover what turns visitors into buyers, the design choices behind sales, and how AI sharpens your copy, then take your questions live. We'd love to see you there! RSVP at info.entrepreneur.com/how-to…
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We're excited to team up with @Entrepreneur for a free session on using AI to build a website that actually sells. We'll walk through what a high-converting site needs, the design choices that drive sales, and how to sharpen your copy and structure with AI. Bring your questions, we'll answer them live. September 17, 2 pm ET. Save your spot: info.entrepreneur.com/how-to…
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Your website can now tell you what it needs. B12's new skills flag what to fix: SEO, accessibility, broken links, what to write next. Or build your own. Tell your Agent a task once, and it repeats the work your way, every time.
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Built a website or app with Manus? You have until Aug. 23 to save your data to your device or cloud before it's deleted. If you're looking for a new platform, paste your live Manus link into B12 to rebuild your project in minutes.
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Generate with B12 using your live link as a starting point, then upload screenshots and chat with the AI Agent to make it better than ever: b12.io
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The B12 Agent can now work while you're logged off. Give it a task and a schedule (once, daily, weekly, or monthly). It does the work and drops it in your chat to review. "Check my competitors and tell me what's new." "Draft a blog post for me to review." Set it once, step away.
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You can generate a B12 website right from Claude. Install the B12 plugin, use the Website Generator skill, and describe the website or app you want. It builds from your description and shares a signup link, where your site's ready to edit and publish. There's a Website Editor skill too, so you can edit a live site in Cowork or the Claude Chrome extension. Give it a try and show us what you make!
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Congrats to the Orchids team on joining Figma! If you built something there, your project needs a new home before July 18. While your site's still live, paste its URL into B12, add a few screenshots of what you want to keep, and we'll rebuild your website/web app and host it for you.
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You can now pretty much build any web-app with this thing.
New in B12: a backend for your website or app, built just by asking. Logins, databases, payments, bookings, dashboards, and more. Describe what you want and our AI Agent builds it for you.
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New in B12: a backend for your website or app, built just by asking. Logins, databases, payments, bookings, dashboards, and more. Describe what you want and our AI Agent builds it for you.
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Replying to @b12
It was fun to help build this one! Getting modern LLMs to build quality payment flows is surprisingly tricky.
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Add payments to your B12 website or app just by asking AI to set it up for you. Tell the AI Agent you want to sell, connect Stripe, and it builds your entire cart and secure checkout experience for you. Live for US businesses and individuals at b12.io.
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Editing your website or app in B12 keeps getting easier. In Visual Edit mode, manage your whole site's look from the left sidebar: colors, fonts, effects, border radius, and shadows, all in one place. Make a change and it previews on your site instantly. Want precision? Style a single element on its own. Select a section and you can update its text and background colors or swap the background image. Change it, see it, move on.
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