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B12

by B12 (formerly Unlimited Labs, Inc.) • New York, NY, USA • Founded 2015

AI Website Builder With Built-In Client Engagement Tools

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Pricing
From $49/mo
Platforms
Last Updated
Mar 20, 2026

What is B12?

B12 is an AI-powered website builder designed for professional service providers and small businesses. It generates a complete, mobile-responsive website in seconds based on a short text prompt. Beyond website creation, B12 includes built-in tools for online scheduling, invoicing, payments, email marketing, contracts with eSignatures, and contact management.

Users can edit their site through a visual editor or chat with AI to make changes. With over 4 million websites created, B12 serves as an all-in-one digital commerce platform that helps businesses attract and serve clients online.

B12 — AI Website Builder With Built-In Client Engagement Tools Whether you're evaluating B12 for your team or comparing it to alternatives in the AI Business Tools category, this in-depth review covers everything: features, pricing, real user reviews, pros and cons, integrations, and direct comparisons against competitors.

Key Features 8

AI Website Builder That Generates a Professional Site in 60 Seconds
Built-In Online Scheduling, Payments, Invoicing, and Lead Capture Tools
AI Assist for Instant Content Drafting of Web Pages, Blogs, and Emails
SEO-Optimized From Day One With Built-In Analytics and Performance Insights
Expert Marketplace for On-Demand Design, Copywriting, and SEO Support
Contact Manager and CRM With Targeted Email Follow-Ups and Automation
Intuitive Drag-and-Drop Editor With No Coding Required for Any Update
4M+ Websites Created With Free Plan Available to Launch Instantly

Who Is B12 For

1 Professional Service Providers
2 Small Business Owners
3 Freelancers And Consultants
4 Attorneys And Law Firms
5 Real Estate Agents
6 Creative Agencies

Pros & Cons

Pros 4 benefits
  • All-In-One Business Platform
  • Instant AI Site Generation
  • Strong Customer Success Support
  • Built-In Scheduling And Payments
Cons 3 limitations
  • Blog Functionality Needs Improvement
  • Limited Advanced Customization Options
  • Higher Tier Plans Are Expensive

Frequently Asked Questions

5 questions

How B12 works

B12 is positioned as aI Website Builder With Built-In Client Engagement Tools. Under the hood it ships 8 headline capabilities, including AI Website Builder That Generates a Professional Site in 60 Seconds, Built-In Online Scheduling, Payments, Invoicing, and Lead Capture Tools, AI Assist for Instant Content Drafting of Web Pages, Blogs, and Emails, SEO-Optimized From Day One With Built-In Analytics and Performance Insights, Expert Marketplace for On-Demand Design, Copywriting, and SEO Support and Contact Manager and CRM With Targeted Email Follow-Ups and Automation. Together these features cover the core workflows most teams expect from a modern ai business tools, from initial setup through day-to-day production use.

B12 runs as a self-contained product, so you can adopt it without touching the rest of your stack — useful when you want to evaluate the tool in isolation before wiring up integrations.

Who is B12 for?

B12 is most useful for Professional Service Providers, Small Business Owners, Freelancers And Consultants and Attorneys And Law Firms. If your team falls into one of those buckets, the feature set lines up well with how you already work — you won't be forcing a square peg into a round hole.

Beyond the obvious use case, the product tends to attract users who want a low-friction starting point option in the ai business tools space.

B12 pricing explained

B12 runs on a freemium model. You get a usable free tier to evaluate the product, and you only pay when you outgrow the limits — usage volume, seat count, or premium features. Headline pricing: From $49/mo.

Across the AI Cloudbase rubric, we score freemium pricing models on transparency, rate-limit honesty, and how predictable spend is at scale. B12's freemium approach is standard for the category — useful for evaluation, but always re-check tier limits before you depend on the free plan.

Our verdict on B12

B12 hasn't been rated by enough reviewers yet to publish an aggregate score. The strongest signal in those reviews is that all-in-one business platform. The most common complaint is that blog functionality needs improvement — worth knowing before you commit, but rarely a deal-breaker for teams that already match the use case.

If you're evaluating B12 against alternatives, weigh it on the same 7-criteria rubric we apply to every tool: capability, integrations, pricing transparency, support, security posture, roadmap velocity, and community signal. Built by B12 (formerly Unlimited Labs, Inc.), founded in 2015, the product has a clear track record you can verify before adopting it. The bottom line: B12 is a solid pick in the ai business tools category, and it deserves a spot on your shortlist if your workflow matches what it was built for.

What's New

monthly
B12 Expert Marketplace Launch

Introduced the B12 Expert Marketplace allowing users to find and hire vetted professionals for website design, marketing, SEO, and content support.

Jan 26
Updated Subscription Plans And Pricing Structure

Revamped pricing tiers with new Website and Website + Client Engagement plans replacing the previous Basic/Professional/Advanced structure.

Feb 13

User Base

4M+ websites created
Active Users

Security & Privacy

TLS certificate maintenance included Low-latency hosting with unlimited bandwidth Secure online payment processing

Collaboration & Teams

Team Workspaces Multi-User Access Role Permissions Shared Projects

Learning & Support

Resources

Documentation Video Tutorials Blog Templates

Support Channels

Email Live Chat Phone Priority Dedicated Manager Onboarding

Localization

1
UI Languages
50+
Content Languages

Recognition & Trust

Featured on PH VC Funded
Awards: Forbes Top 500 Best Startup Employers (2 consecutive years)
Media: Featured in Yahoo Finance, Cision PR Newswire

All Features of B12

1
AI Website Builder That Generates a Professional Site in 60 Seconds
2
Built-In Online Scheduling, Payments, Invoicing, and Lead Capture Tools
3
AI Assist for Instant Content Drafting of Web Pages, Blogs, and Emails
4
SEO-Optimized From Day One With Built-In Analytics and Performance Insights
5
Expert Marketplace for On-Demand Design, Copywriting, and SEO Support
6
Contact Manager and CRM With Targeted Email Follow-Ups and Automation
7
Intuitive Drag-and-Drop Editor With No Coding Required for Any Update
8
4M+ Websites Created With Free Plan Available to Launch Instantly

B12 User Reviews

No reviews yet. Be the first to review B12!

B12 Pricing

From $49/mo

Website
$49 /mo
  • Free custom domain
  • Mobile responsive website
  • 100 AI credits per month
  • Easy-to-use website editor
POPULAR
Website + Client Engagement
$78 /mo
  • Free custom domain
  • 300 AI credits per month
  • Online payments and invoicing
  • Online scheduling
Save 15% with annual billing
View Pricing

Company Info

Company B12 (formerly Unlimited Labs, Inc.)
Location New York, NY, USA
Founded 2015
Team Size 50-100

B12 Popularity

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Freemium ★★★★★ 4.5
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