B12

B12 is an AI website builder for service providers, freelancers, and small businesses that want to launch a professional, mobile-responsive website, store, portfolio, blog, or web app in about two minutes from a prompt.

Key capabilities include:

• AI generation and AI agent editing: describe what you want and the agent adds pages, changes the design, updates copy, or adds features such as checkout, booking pages, or members-only areas; a visual editor lets you click any element to change it
• Integrations and backends: connect Google Drive, Notion, Figma, Calendly, Zapier, and Stripe, with backends running on Supabase
• Client engagement tools on the higher plan: client intake, email marketing, a contact manager, contracts and eSignatures, file uploads, and a custom email address
• Expert help: optional do-it-for-you Professional and Advanced packages where B12's team builds and launches the site, plus an Expert Marketplace for designers, copywriters, and SEO specialists

Pricing: Freemium. Free ($0) runs on a b12sites.com subdomain with 5 daily AI credits (up to 30 a month). Website is $24/month (custom domain free for the first year, 100 AI credits, up to 10 launched projects) and Website + Client Engagement is $78/month (300 AI credits, up to 30 projects). New users pay $1 for the first 7 days. Professional and Advanced expert-built plans require a setup fee; check b12.io for current prices.

Notable for combining fast AI site creation with service-business workflows and optional human experts, positioning it as a focused alternative to general-purpose website builders.