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B12

b12.io

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Spec score 9.2 #3 of 42 in Legal Client Portal Software

What it is

B12 builds websites and online business tools from a prompt, including stores, portfolios, blogs, web apps, and internal tools. It says a complete site can be drafted in about two minutes, then edited through an AI Agent or visual editor. The platform can draft web pages, blog posts, product descriptions, and emails; sites include SEO structure and built-in analytics. Client features include lead forms, contact management, email campaigns, announcement banners, and exit-intent pop-ups. For commerce, B12 supports online credit card and ACH payments, automated invoice reminders, and branded invoices. Listed integrations include Calendly, Google Calendar, Google Forms, Google Tag Manager, PayPal, Shopify, Typeform, WhatsApp, and WordPress blogs. It also offers access to designers, copywriters, and SEO specialists through a marketplace. B12 runs on the web and requires no software installation; it can be accessed from desktop, mobile, or tablet. A free plan and 7-day trial are available, with paid plans starting at $24/mo. B12 Commerce is available only in the United States; non-US users can use third-party payment tools such as PayPal, Ecwid, or Shopify.

Spec sheet

What it does
B12 generates websites, stores, portfolios, blogs, web apps and business tools from prompts, then provides commerce, contacts, email marketing, forms and analytics.Read 15 Oct 2026 · b12.io
Product
B12 builds websites, online stores, portfolios, blogs, web apps, and internal business tools from a prompt.Read 11 Oct 2026 · b12.io
Audience
B12 says it serves businesses, creators, agencies, nonprofits, side hustles, and passion projects.Read 11 Oct 2026 · b12.io
Integrations
Listed integrations include Calendly, Shopify, Ecwid, PayPal, Google tools, Eventbrite, WhatsApp, WordPress, YouTube and custom HTML or scripts.Read 15 Oct 2026 · b12.io
Security
B12 says every subscription includes HTTPS/TLS/SSL for websites.Read 11 Oct 2026 · support.b12.io
Support
Paid Website plans include email and chat support; B12 also advertises scheduled calls and an expert marketplace.Read 15 Oct 2026 · b12.io
Headquarters
New York, New York, United StatesRead 28 Sep 2026 · b12.io
Founded
2016Read 28 Sep 2026 · b12.io
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.Read 11 Oct 2026 · b12.io
AI content and SEO
AI can draft pages, blog posts, product descriptions and emails; sites include metadata-oriented SEO structure and analytics.Read 15 Oct 2026 · b12.io
AI generation
The service says it creates a complete first draft in about two minutes.Read 15 Oct 2026 · b12.io
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.Read 11 Oct 2026 · b12.io
Client tools
B12 provides customizable lead forms, contact management, email campaigns, announcement banners, and exit-intent pop-ups.Read 11 Oct 2026 · b12.io
Commerce
Commerce accepts card and ACH payments and supports branded invoices with automated reminders.Read 15 Oct 2026 · b12.io
Company size and launch
B12’s About page says it launched in 2016 and has more than 30 team members.Read 15 Oct 2026 · b12.io
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.Read 11 Oct 2026 · b12.io
Documentation
The Help Center is organized into getting started, AI Agent, built-in features, integrations, publishing/domains, troubleshooting, billing and support sections.Read 15 Oct 2026 · support.b12.io
Editing
Users can revise sites through a visual editor or conversational AI Agent.Read 15 Oct 2026 · b12.io
Email marketing
B12 supports newsletters, announcements and automated follow-up sequences tied to a site’s lists and designs.Read 15 Oct 2026 · b12.io
Expert help
B12 offers a marketplace of vetted designers, copywriters, and SEO specialists for project or ongoing work.Read 11 Oct 2026 · b12.io
Expert marketplace
B12 offers a marketplace of vetted designers, copywriters and SEO specialists for additional work.Read 15 Oct 2026 · b12.io
Extensibility
Documentation describes webhooks and custom API endpoints for routing forms to services such as Zapier, Make, n8n, HubSpot, Salesforce, Mailchimp, Airtable and Notion.Read 15 Oct 2026 · support.b12.io
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.Read 15 Oct 2026 · b12.io
Installation
B12 says it is a SaaS product requiring no software installation and accessible from desktop, mobile or tablet browsers.Read 15 Oct 2026 · b12.io
Lead management
Custom forms send prospect information into B12’s contact manager, where users can add notes and segment contacts.Read 15 Oct 2026 · b12.io
Legal entity and founders
Crunchbase identifies the business as Unlimited Labs Inc. and names Adam Marcus and Nitesh Banta as founders.Read 15 Oct 2026 · crunchbase.com
Limit: cancellation complaint
A Trustpilot reviewer reported difficulty finding a cancellation control for a $1 promotion and being charged $49.Read 15 Oct 2026 · trustpilot.com
Limit: customization
G2 reviewers report limited templates and difficulty adding logos, photos, pages and linked-page edits.Read 15 Oct 2026 · g2.com
Limit: generic output
Some G2 reviewers say AI results can feel generic or template-based and may require paid designer work or substantial rewriting.Read 15 Oct 2026 · g2.com
Limit: portability
B12’s help documentation says sites cannot be downloaded for local hosting and will not function if hosted outside B12’s system.Read 15 Oct 2026 · support.b12.io
Limit: price and focus
TechRadar says pricing is relatively steep, the feature set can overwhelm, and the product is aimed mainly at service businesses rather than full ecommerce.Read 15 Oct 2026 · techradar.com
LinkedIn company facts
LinkedIn lists B12 as a privately held software-development company founded in 2015, headquartered in New York, with 11–50 employees.Read 15 Oct 2026 · linkedin.com
MCP API
B12 hosts a remote MCP server at https://mcp.b12.io/mcp for clients such as Claude, Cursor and Windsurf, allowing AI-generated sites to be previewed and published.Read 15 Oct 2026 · support.b12.io
Open-source component
B12 publishes its website-generator MCP server on GitHub under the Apache-2.0 licence, with local installation instructions.Read 15 Oct 2026 · github.com
Payment availability
B12 Commerce is available only in the United States; the support page says non-US users can use third-party payment tools such as PayPal, Ecwid, or Shopify.Read 11 Oct 2026 · support.b12.io
Praise: ease and results
G2 and Trustpilot reviewers commonly praise fast setup, professional-looking sites, ease for beginners and helpful staff.Read 15 Oct 2026 · g2.com
Praise: support
GetApp reviewers repeatedly describe B12 support as friendly, knowledgeable, personal and quick to resolve issues.Read 15 Oct 2026 · getapp.com
Rating on Capterra
4.1 out of 5 from 113 reviews.Read 15 Oct 2026 · capterra.com
Rating on G2
4.2 out of 5 from 30 reviews.Read 15 Oct 2026 · g2.com
Rating on GetApp
4.1 out of 5 from 113 reviews.Read 15 Oct 2026 · getapp.com
Rating on Product Hunt
5.0 out of 5 from 2 reviews.Read 15 Oct 2026 · producthunt.com
Rating on Software Advice
4.1 out of 5 from 113 reviews.Read 15 Oct 2026 · softwareadvice.com
Rating on Trustpilot
4.5 out of 5 from 220 reviews.Read 15 Oct 2026 · trustpilot.com
Security claims
B12 states that sites use HTTPS/TLS by default and that customer data is not used to train its AI models.Read 15 Oct 2026 · b12.io
Sensitive-data limit
B12 warns that users are responsible for legal compliance and recommends avoiding Social Security numbers, identity documents, financial, health and education records in its forms.Read 15 Oct 2026 · support.b12.io

Plans and prices

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 Read 15 Oct 2026 · b12.io
Website $24 a month $1 for first 7 days 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 Read 15 Oct 2026 · b12.io
Website + Client Engagement $78 a month $1 for first 7 days Website features · 300 AI credits/month · 30 launched projects · custom email · client intake · email marketing · contact manager · contracts/eSignatures · file uploads Read 15 Oct 2026 · b12.io

Every B12 plan and price →

Strong points and limits

Strong points

  • Builds websites, stores, blogs, and web apps from prompts.
  • Includes SEO structure and built-in analytics.
  • Offers a free plan and a 7-day trial.
  • Provides a visual editor and AI Agent for edits.
  • Runs on desktop, mobile, and tablet through the web.

Limits

  • Paid plans start at $24/mo.
  • B12 Commerce is available only in the United States.
  • AI prompt data may be retained for up to 30 days.
  • Fal.ai retains data until B12 deletes it.

Who it suits

B12 is intended for businesses, creators, agencies, nonprofits, side hustles, and personal projects that need a website or web-based business tools. Its forms, contact management, and commerce features may suit users building a site that also handles inquiries or sales.

Verdict

B12 combines prompt-based site creation with publishing, lead-management, and commerce tools. Consider the US-only availability of B12 Commerce and the stated AI prompt-retention terms when assessing fit.

Where Specifiction places it

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