B12

Overview

B12 is a web-based service that turns a prompt into websites, stores, portfolios, blogs, web apps, and internal business tools. It is best suited to small businesses, creators, agencies, nonprofits, and side projects that want lead capture, content production, and basic commerce alongside a site. The central advantage is breadth in one subscription; the main limitations are restricted free-plan capacity and US-only B12 Commerce.

B12 says a complete site can be drafted in about two minutes, then refined through an AI Agent or visual editor. That makes it a practical starting point for a small team without a dedicated web department, while organizations seeking a highly specialized marketing, legal, or commerce system may be better served elsewhere.

Key features

The builder can generate pages, blog posts, product descriptions, and emails, not just initial site layouts. SEO structure and built-in analytics are included, giving a new site a foundation for discoverability and basic measurement. The free tier's five daily AI credits, capped at 30 per month, will constrain frequent revisions or content generation; paid users receive larger monthly allocations.

Customizable lead forms, contact management, email campaigns, announcement banners, and exit-intent pop-ups connect acquisition and follow-up in one place. This is useful for a service business that wants prospects to move from a form into an organized contact list and campaign. A team with advanced marketing automation requirements may still need a more focused platform.

Commerce supports online credit-card and ACH payments, automated invoice reminders, and branded invoices. B12 Commerce operates only in the United States. Businesses elsewhere can connect third-party tools such as PayPal, Ecwid, or Shopify instead, but that means commerce is less unified outside the US.

Listed integrations include Calendly, Google Calendar, Google Forms, Google Tag Manager, PayPal, Shopify, Typeform, WhatsApp, and WordPress blogs. A marketplace of vetted designers, copywriters, and SEO specialists provides optional project or ongoing assistance. Every subscription includes HTTPS/TLS/SSL, and B12 says AI subprocessors do not train on submitted prompts; prompt data is retained for up to 30 days, except Fal.ai, which retains it until B12 deletes it.

Pricing

The Free plan is suitable for experimenting or a simple project that can use a B12 subdomain. The $24 Website plan adds a custom domain for year one, published-project capacity, and core business features, making it the sensible fit for a small public-facing site. It does not include the higher tier's client-intake, contact-management, marketing, contracts, eSignature, or file-upload tools. At $78 per month, Website + Client Engagement is aimed at agencies and businesses handling multiple clients or formal workflows; its 30-project and 300-credit limits are substantially higher, but the price is difficult to justify for a brochure site.

Both paid plans charge $1 for the first seven days, functioning as a seven-day trial, before the stated monthly billing. Review payment availability for your location, particularly if you need B12 Commerce.

Platforms

B12 is a SaaS service requiring no installation. It is accessible from desktop, mobile, or tablet through the web. Customer Success is reachable by live chat, email, or scheduled call; Website-plan pricing includes email and chat support.

Who it's for

Choose B12 when a small business or creator wants one service for a website, AI-assisted copy, lead forms, basic follow-up, analytics, and payments. The higher plan fits agencies and client-service operations that need intake, contacts, contracts, signatures, and file exchange across several projects.

It is less suitable for a user who only needs the cheapest possible static site, who requires commerce outside the United States without third-party tools, or who needs deeply specialized workflows rather than an integrated general-purpose platform.

Pros and cons

Pros

• Prompt-based drafting can produce a complete site quickly, with AI and visual editing for refinement.
• SEO structure, analytics, lead capture, campaigns, and pop-ups cover the core path from discovery to follow-up.
• Paid plans include custom-domain support, integrations, and HTTPS/TLS/SSL.
• The expert marketplace adds access to designers, copywriters, and SEO specialists when internal resources are limited.

Cons

• The free plan uses a B12 subdomain and limits AI generation to 30 credits per month.
• B12 Commerce is US-only, so other locations must rely on third-party payment services.
• The client-management, marketing, contract, signature, and file tools require the $78 monthly tier.
• The Website plan caps launched projects at 10, which may restrict growing agencies.

Alternatives

For a directory of specialist client portals, see Legal Client Portal Software. For broader site-builder comparisons, consult Small Business Website Builders or AI Website Builders.

• 8am MyCase is the stronger choice when legal case and contact management, time entry, invoicing, and trust accounts matter more than website creation; its MyCase Basic plan is $50 a month billed annually.
• Assembly suits teams prioritizing a legal client portal, with a free tier for five active contacts, one internal user, 50 build credits monthly, and three apps.
• LawConnect is for consumers seeking free AI legal information, while lawyer fees may apply when hiring counsel.
• Filevine is preferable for custom-built matter, document, billing, and payment packages, with optional intake, deposition, signature, and AI modules.
• Jursu offers a freemium legal-focused option for users who want that product's approach instead.
• SimpleLaw Document Automation is the alternative when document automation and lead connection are the primary need.
• Centerbase is aimed at payment workflows, with Centerbase Payments priced at $19 a month plus processing fees.
• INSZoom is an alternative for immigration-focused operations seeking a platform with demo-based purchasing.

Verdict

B12 is a strong fit for a small organization that wants an AI-built website tied to lead management, content, analytics, and commerce in one web service. Choose it for that integrated starting point and the option to add professional help. Look elsewhere if you need non-US native commerce, a very low-cost static site, or a specialist system whose workflows justify separating website creation from business operations.