B12
B12 builds websites and web-based tools from a prompt, including online stores, portfolios, blogs, web apps, and internal business tools.
What B12 is
B12 builds websites and web-based tools from a prompt, including online stores, portfolios, blogs, web apps, and internal business tools. It can draft a site in about two minutes, then lets users make changes with an AI Agent or visual editor. The platform can also draft web pages, blog posts, product descriptions, and emails; its sites include SEO structure and built-in analytics. Business features include lead forms, contact management, email campaigns, announcement banners, and exit-intent pop-ups. It supports credit card and ACH payments, invoice reminders, and branded invoices, and lists integrations such as Calendly, PayPal, Shopify, Typeform, and WordPress blogs. B12 runs in a browser and requires no software installation. Commerce is available only in the United States, though users elsewhere can use third-party payment tools such as PayPal, Ecwid, or Shopify. Every subscription includes HTTPS/TLS/SSL for websites.
Good
- Creates websites and business tools from a prompt.
- Includes SEO structure and built-in analytics.
- No software installation is required.
- Free plan and 7-day trial are available.
Watch out
- B12 Commerce is available only in the United States.
- AI subprocessors may retain prompts for up to 30 days.
- Fal.ai retains prompt data until B12 deletes it.
Who it suits
B12 may suit businesses, creators, agencies, nonprofits, and individuals building a site or business tool from a prompt. It is also relevant to users seeking built-in lead management, email campaigns, or payment and invoice features.
Verdict
B12 combines site creation, content drafting, and business features in a web platform with a free plan and paid options from $24/mo. Check the payment availability and prompt-retention terms against your needs.
Plans and prices
From B12's own pricing page, checked 15 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | B12 subdomain · mobile-responsive site/store/portfolio/blog/app · 5 daily AI credits (30/month maximum) · visual editor with AI chat · team invites |
| Website | $24 a month | Free features · custom domain free first year · 100 AI credits/month · 10 launched projects · advanced team management · no B12 ads · commerce · backends · analytics · integrations · email/chat support · $1 for first 7 days |
| Website + Client Engagement | $78 a month | Website features · 300 AI credits/month · 30 launched projects · custom email · client intake · email marketing · contact manager · contracts/eSignatures · file uploads · $1 for first 7 days |
The facts
Each one read from B12's own pages, with the date it was checked.
What it does
- AI builder
- B12 says it can draft a complete site in about two minutes, then lets users edit with an AI Agent or visual editor.checked 11 Oct 2026
- AI content and SEO
- AI can draft pages, blog posts, product descriptions and emails; sites include metadata-oriented SEO structure and analytics.checked 15 Oct 2026
- AI generation
- The service says it creates a complete first draft in about two minutes.checked 15 Oct 2026
- AI privacy
- B12 says its AI subprocessors do not use submitted prompts to train their models and retain prompt data for up to 30 days, except Fal.ai, which retains data until B12 deletes it.checked 11 Oct 2026
- Audience
- B12 says it serves businesses, creators, agencies, nonprofits, side hustles, and passion projects.checked 11 Oct 2026
- Client tools
- B12 provides customizable lead forms, contact management, email campaigns, announcement banners, and exit-intent pop-ups.checked 11 Oct 2026
- Commerce
- Commerce accepts card and ACH payments and supports branded invoices with automated reminders.checked 15 Oct 2026
- Content and SEO
- The platform can draft web pages, blog posts, product descriptions, and emails, and its sites include SEO structure and built-in analytics.checked 11 Oct 2026
- Documentation
- The Help Center is organized into getting started, AI Agent, built-in features, integrations, publishing/domains, troubleshooting, billing and support sections.checked 15 Oct 2026
- Editing
- Users can revise sites through a visual editor or conversational AI Agent.checked 15 Oct 2026
- Email marketing
- B12 supports newsletters, announcements and automated follow-up sequences tied to a site’s lists and designs.checked 15 Oct 2026
- Expert help
- B12 offers a marketplace of vetted designers, copywriters, and SEO specialists for project or ongoing work.checked 11 Oct 2026
- Expert marketplace
- B12 offers a marketplace of vetted designers, copywriters and SEO specialists for additional work.checked 15 Oct 2026
- Extensibility
- Documentation describes webhooks and custom API endpoints for routing forms to services such as Zapier, Make, n8n, HubSpot, Salesforce, Mailchimp, Airtable and Notion.checked 15 Oct 2026
- Funding news
- A B12 announcement dated October 21, 2021 reported a $15.7 million round from Tola Capital, General Catalyst, Breyer Capital and Naval Ravikant.checked 15 Oct 2026
- Installation
- B12 says it is a SaaS product requiring no software installation and accessible from desktop, mobile or tablet browsers.checked 15 Oct 2026
- Integrations
- Listed integrations include Calendly, Shopify, Ecwid, PayPal, Google tools, Eventbrite, WhatsApp, WordPress, YouTube and custom HTML or scripts.checked 15 Oct 2026
- Lead management
- Custom forms send prospect information into B12’s contact manager, where users can add notes and segment contacts.checked 15 Oct 2026
- Legal entity and founders
- Crunchbase identifies the business as Unlimited Labs Inc. and names Adam Marcus and Nitesh Banta as founders.checked 15 Oct 2026
- Limit: cancellation complaint
- A Trustpilot reviewer reported difficulty finding a cancellation control for a $1 promotion and being charged $49.checked 15 Oct 2026
- Limit: customization
- G2 reviewers report limited templates and difficulty adding logos, photos, pages and linked-page edits.checked 15 Oct 2026
The company
- Company size and launch
- B12’s About page says it launched in 2016 and has more than 30 team members.checked 15 Oct 2026
- Founded
- 2016checked 28 Sep 2026
- Headquarters
- New York, New York, United Stateschecked 28 Sep 2026
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