B12 Website Builder Review: Build a Website in 60 Seconds

No, B12 isn’t some new vitamin supplement for businesses. It’s even better: an AI website builder designed to get your business online faster than ever.

Since 2015, over 150,000 businesses have used B12 to launch their websites. Needless to say, B12 is a game-changer (especially for service-based businesses that need more than just a pretty layout).

In this B12 website builder review, I’ll discuss the pros and cons, what it is, who it’s best for, and its key features. Then, I’ll show you how I used B12 to generate an entire website in seconds. It’s easily the fastest AI website generator I’ve tried.

I’ll finish the article by comparing B12 with my top three alternatives (Divi AI, Wix, and Brizy). By the end, you’ll know if B12 is right for you!

Verdict

B12 is an all-in-one website builder that creates a personalized website in seconds with AI. It’s more expensive and less flexible than some builders, but its fast and professional results make it a great option for service-based businesses.

What is B12?

When I first came across B12, I was a bit confused. Was it a vitamin supplement company that somehow got into web design?

Turns out that wasn’t the case. But the name actually makes sense when you understand what they’re trying to do. B12 is like that essential vitamin your business needs to function properly online.

What Exactly Is B12’s Approach?

The thing that sets B12 apart from every other website builder I’ve tried is that they don’t just give you templates. Instead, their artificial intelligence actually creates an industry-specific website for you in about 60 seconds.

Here’s how it generates websites: Give B12 your business name and description, and the AI will analyze your industry, pull relevant content, select appropriate images, and even write copy that makes sense.

The Story Behind B12

B12 was founded in 2015 by two childhood friends (Nitesh Banta and Adam Marcus) who saw businesses either blow huge budgets on overpriced web design agencies or waste months trying to figure out DIY website builders. They came up with B12 to solve this problem by instantly drafting a website so users can focus on growing their business.

But these guys aren’t just “tech bros.” Adam has a background from MIT’s Computer Science lab. They’ve also raised over $28 million in funding because investors could see they were solving a real problem.

Based in New York City, B12 has now helped over 150,000 businesses get online since it started. That’s not a small number, and it shows they’re doing something right.

How B12 Differs from Traditional Website Builders

Most website builders follow the same formula: pick a template, customize it, and hope for the best.

I’ve been down that road with Wix, Squarespace, and others. You spend hours searching through hundreds of templates, pick one that’s “close enough,” then spend weeks trying to make it work for your business.

B12 flips this entire process. Rather than starting with a design and trying to fit your content into it, they start with your business needs and build everything around that.

The AI doesn’t just generate a pretty layout. It creates the content strategy, writes the copy, selects relevant images, and sets up the necessary tools.

But here’s the real difference: B12 combines AI with real humans.

When I needed help with my services page, I wasn’t talking to a chatbot. A real copywriter rewrote my content, making it significantly better than anything I could have done myself.

Traditional builders leave you on your own after you sign up. B12 treats you more like an agency client, with ongoing support and optimization. It’s more expensive than other builders, but well worth it for businesses that want a quick and easy setup and professional help.

AI Technology

B12 uses what they call “human-assisted AI.” Artificial intelligence handles the heavy lifting, but real experts guide the process and make improvements.

The AI doesn’t just pull random content from templates. The builder uses your input to create a complete website instantly, including layout, text, images, and basic SEO.

An All-in-One Website Building Platform

This is where B12 justifies its higher price point. They’re not just building a website. They’re giving you an entire business platform.

The B12 subscription includes online scheduling (so clients can book appointments directly from your site), payment processing, invoicing, email marketing, contact management, and e-signature tools. Most other website builders charge extra for these features, if they offer them at all.

B12’s invoicing and scheduling automatically match the website’s branding. So when sending an invoice or booking confirmation, it already looks professional and cohesive.

The email marketing tool is also not just basic newsletters. You can set up automated sequences for new leads and follow-up campaigns. For a service business, that’s big.

Who is B12 Best For?

Here are the types of people who get the most out of using B12 to build their website:

• Small to medium-sized businesses can use B12 to build a fast, professional website without technical hassle.
• Law firms, consultants, coaches, contractors, fitness trainers, and event planners can use B12 to display their services, send automated on-brand emails, and manage clients.
• Businesses can use B12 to handle scheduling, invoicing, eSignatures, and email marketing in one place.
• Entrepreneurs and service providers can use B12 to combine AI efficiency with expert design and copywriting for a high-quality site.

In a nutshell, B12 focuses on being the best AI website builder for professional service providers (businesses that sell expertise rather than products).

B12 Key Features

Here are B12’s key features:

• AI website draft: Create a personalized website in 60 seconds with content, images, and layout.
• Custom design: Easily edit colors, text, and layout, or get expert design help.
• Business tools: Built-in forms, scheduling, invoicing, and payments.
• Email automation: Send automated emails for leads, follow-ups, and retention.
• SEO & analytics: Improve rankings and track performance with built-in tools.
• AI & human support: Begin with AI drafts, then refine with professional designers.
• Mobile-friendly with no coding: Responsive sites you can edit on desktop or mobile.
• Hosting & domains: Free hosting, custom domains, SSL, and unlimited storage.
• Client management: Manage clients, intake forms, and payments in one place.

How to Use B12

Here’s how I used B12 to generate an AI website in seconds:

1. Sign Up for B12
2. Add a Prompt & Generate a Website
3. Add Personal Details
4. View Your Generated Website
5. Edit Text
6. Regenerate a Section
7. Regenerate Text
8. Ask the AI Agent Questions
9. Ask the AI Agent to Make Changes
10. Publish Your Website

Step 1: Sign Up for B12

I started by going to B12.io and selecting “Start for free” on the top right.

Step 2: Add a Prompt & Generate a Website

Immediately, I was taken to the B12.io prompt generator. This was where I could add a text prompt describing my business name and website.

B12 provided me with some prompt suggestions at the bottom, but I added my own prompt:

“Create a sleek, modern website for a company called Unite. Unite is a knowledge and media hub dedicated to artificial intelligence. The website should highlight industry news, in-depth guides, expert interviews, and analysis covering AI trends, ethics, and applications across different industries. The design should emphasize credibility, forward-thinking innovation, and community engagement. Include sections for news articles, educational resources, thought leadership blogs, and a sign-up form for newsletters. The branding should feel professional, tech-driven, and accessible for both businesses and individuals interested in AI.”

I even had the option to enhance the prompt, but mine was already detailed enough. The more detail, the better the results would be.

Step 3: Add Personal Details

From there, B12 asked me to provide the details to create my account. Once filled out, I hit “Generate.”

Step 4: View Your Generated Website

A few seconds later (literally seconds), my website was generated. Among AI website generators I’ve tried, B12 has been the fastest. On the left, I could make manual edits and edits with AI. On the right was a full preview of my website in desktop and mobile formats.

The AI had created pages for my services, an about section, contact forms, and even pulled in some stock photos that actually made sense for my industry.

It wasn’t perfect. But as a starting point, it was better than staring at a blank template and wondering where to begin.

The best part was how accurately the AI-generated copy captured the business I described. It nailed the basics without sounding too generic.

Step 5: Edit Text

The editor is similar to editing a Word document, but for websites. You can click on any text in the preview and start typing, and swap out images by clicking on them.

Step 6: Regenerate a Section

With B12, you can even regenerate entire sections with AI.

When hovering over different sections in the preview, you’ll notice little purple stars next to each section. I clicked that, and three options appeared:

1. Edit section
2. Regenerate content
3. Regenerate layout

I hit “regenerate layout.”

Instantly, B12 gave me a completely different design for that section.

Step 7: Regenerate Text

The text generator was also impressive. I selected the text in the preview and clicked the star icon in the editor.

Next, I told the AI the use case, tone (e.g., “assertive,” “candid,” or “casual”), and topic. I hit “Generate text.”

Seconds later, B12 generated text in the tone I specified.

While it kept the original and generated a bit too much text, it was much more enthusiastic than the original. Plus, it already understood the context of my business. I just had to refine it.

Step 8: Ask the AI Agent Questions

Last but not least, I wanted to try B12’s AI Agent. This was where I could ask AI to make suggestions or changes to my website.

I could ask the AI Agent any question I wanted or select a conversation topic. I selected “Edit my website.”

Immediately, the AI Agent told me how I could edit my website on B12.

Step 9: Ask the AI Agent to Make Changes

Next, I wanted to see how well the AI could make changes to my website. I asked it to turn the buttons from green to blue, and it did so in seconds!

Step 10: Publish Your Website

Once I was happy with my website, publishing was just clicking a button. No complicated hosting setup, no waiting for DNS to propagate. Just one click, and my site went live!

Top 3 B12 Alternatives

Here are the best B12 alternatives I’d recommend:

Divi AI

The first B12 alternative I’d recommend is Divi AI. Divi AI is built into the Divi website builder from Elegant Themes. It adds AI design to its drag-and-drop editor.

On the one hand, Divi AI offers design flexibility and visual editing. You can create custom layouts and generate content directly in the builder.

It also integrates with many plugins and supports WooCommerce. This makes Divi a good fit for those who want full design control with integrated e-commerce.

Meanwhile, B12 quickly creates AI website drafts with expert support and built-in tools like scheduling and email marketing. It’s an all-in-one platform that connects your website with your business operations. However, it’s best for service-based businesses as opposed to e-commerce.

For full design control and WooCommerce integration, choose Divi. For fast, tailored websites with business automation, choose B12.

Read my Divi review or visit Divi AI!

Wix

The next B12 alternative I’d recommend is Wix. Wix is a user-friendly website builder with 2,000+ customizable templates, drag-and-drop design, and hundreds of third-party app integrations.

Wix stands out with its vast template library and flexible creative control. You can easily build unique websites with more granular design flexibility compared to B12.

Wix also includes built-in e-commerce. Meanwhile, B12 relies on third-party integrations like Shopify or Ecwid.

B12 focuses on instant AI-generated websites for professional service industries, combined with human-assisted editing and business workflow integrations.

Choose B12 to quickly build an AI website with built-in business tools for professional services. Otherwise, choose Wix for more design freedom, integrated e-commerce, and a larger app ecosystem.

Read my Wix review or visit Wix!

Brizy

B12 Website Builder Review: The Right Tool For You?

Overall, I was impressed with what B12 had to offer. It made creating a professional website feel effortless: from a blank prompt to a fully generated website in seconds. I couldn’t believe how fast it was.

On top of that, I found the interface really easy to navigate. Plus, the combination of AI generation with real human support made refining content and design fast and stress-free.

For service-based businesses that want an all-in-one platform with scheduling, invoicing, email marketing, and client management, B12 is an excellent choice. It’s a bit pricier and less flexible creatively, but the time saved and professional results make it worth it.

If you’re curious about the best B12 alternatives, here’s what I’d recommend:

• Divi AI is best for full design freedom and WooCommerce integration
• Wix is best for a flexible design, lots of templates, and built-in e-commerce
• Brizy is best for fast, easy design with strong marketing integrations

Thanks for reading my B12 website builder review! I hope you found it helpful.

B12 lets you draft a free AI website just by signing up and giving it a prompt. Try it for yourself and see how you like it!

Frequently Asked Questions

Is B12 a good website builder?

Yes, B12 is considered a good website builder. It’s a user-friendly AI platform that generates a personalized, professional website quickly.

Is B12 website builder free?

B12 website builder offers a free plan where you can build your own mobile-responsive website. However, it includes B12-branded banner ads. For websites without branding and additional features, upgrade to a paid plan.