B12
AI website builder with client intake, invoicing and email tools
B12 report card
Fair · out of 4.0 · graded Oct 17, 2026
Best for service firms that want client tools beside the site
B12 writes you a whole website from a prompt in about two minutes, and you change it by telling its AI what to edit. The pricier plans add what service firms need: client intake, invoices and eSignatures. But edits run on AI credits, and those client tools start at $67 a month.
Who B12 is for
- Great if you'd rather describe a change than drag things around
- Handy when you run a service firm and want intake forms and invoices beside the site
- Good for owners who'd pay to have B12's own team build the whole site
Who B12 is not for
- Tight if you tweak a lot, as edits use AI credits and Website has 100 a month
- Pricey if you want client intake or email marketing, at $67 a month
- Skip it if you like placing every element by hand, since edits mostly go through the AI
Why B12 gets a 2.2
Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.
- CValue for moneyWebsite is $20 a month on yearly billing ($24 monthly), between the middle and the dearer quarter of what builders charge. That gets a custom domain, 100 AI credits a month and no B12 ads. Client intake and email marketing need $67, and the done-for-you plans start at $169 plus a setup fee.
- CFree plan and trialA free plan with no time limit, but it's on a b12sites.com address, shows B12 ads and allows 5 AI credits a day, 30 a month at most. Since edits use credits, you'll run out fast.
- CFeaturesA site, store, blog or simple app from a prompt, a visual editor, commerce and analytics, then intake forms, invoicing, payments, email campaigns and eSignatures higher up. Wide, but edits draw on monthly AI credits, and the client tools sit on the $67 plan.
- CEase of useNo rating on record. A first draft takes minutes and you edit by describing changes, which suits people who hate dragging boxes. But every edit spends a credit, and the client tools need setting up before they earn their keep.
- BPlatforms and integrationsA web app with no desktop or phone app listed. It hooks into Calendly, Ecwid, Eventbrite, Disqus, Drift, accessiBe, ConveyThis and Donately.
What these grades rest on. Graded from this listing, whose facts were read from B12's own pages on 17 October 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.
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<a href="https://toolgpa.com/tools/b12#review"><img src="https://toolgpa.com/badge/b12.svg" alt="B12: 2.2 GPA on ToolGPA" width="196" height="56"></a>Where B12 stands among website and landing page builders
B12's GPA of 2.2 is higher than 9 of the 30 other website and landing page builders we grade, and level with 6.
It stands best on platforms and integrations (B, above 8 of 30) and worst on ease of use (C, above 0).
Its paid plans start at $20 a month, against a middle price of $14 for the category: 20 of the 29 others that charge start lower.
On features, ease of use and platforms it scores 2.3 out of 4. 8 tools score higher and cost less.
Each grade against the category
Every bar is all 31 website and landing page builders we grade, cut by the letter each got. B12’s own letter is outlined.
- CValue for moneyAbove 2 of 30, level with 18
- CFree plan and trialAbove 5 of 30, level with 23
- CFeaturesAbove 4 of 30, level with 13
- CEase of useAbove 0 of 30, level with 26
- BPlatforms and integrationsAbove 8 of 30, level with 21
Price against what you get
Each dot is one of 30 website and landing page builders. Further left costs less, and higher up scores better on features, ease of use and platforms. Point at a dot to see which tool it is.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Keep B12, or make your own?
Keep it
To replace B12 you would be making a builder that other people can use without writing code. That is not a weekend's work, with an AI app builder or without one.
That makes this kind of software worth paying for, not this one in particular: 15 of the 30 other website and landing page builders grade higher. It costs $240 a year.
What you could make
- Templates, forms and invoicing: an app builder makes these well.
What you could not
- A builder that other people can use without writing code.
- A tool that builds and hosts other apps.
- Newsletters sent to thousands of people that still reach the inbox.
- It plugs into other products, Calendly, Ecwid and Eventbrite among them.
- AI features, unless you pay a model provider for each request yourself.
What this rests on. B12’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
What is B12?
B12 generates a website, store or simple web app from a prompt in about two minutes and lets you change it by telling its AI Agent what to edit or by clicking elements in a visual editor. It is aimed at professional service firms: higher plans add client intake forms, invoicing and payments, email marketing, a contact manager, and contracts with eSignatures. Two further plans have B12's own team design, write and launch the site.
B12 has a free plan. Paid plans start at $20 per month, billed yearly ($24 billed monthly). See every plan
Good for
- Consultants, law firms and other service businesses that want client tools beside the site
- People who would rather describe changes to an AI than drag elements around
- Owners who want experts to build the site for a monthly fee
Worth knowing
- The free plan runs on a b12sites.com subdomain, shows B12 ads and allows at most 30 AI credits a month.
- Client intake, email marketing, custom email addresses and eSignatures need Website + Client Engagement at $67 a month or more.
- Professional and Advanced carry a setup fee that the pricing page does not price, and they cannot be downgraded to the self-serve plans.
- The included custom domain is free for the first year only.
Key features
- AI site and app generation
- A prompt, or a screenshot of what you want, produces a full first draft of a website, store, portfolio, blog or web app in about two minutes.
- AI Agent and visual editor
- Changes are made by describing them to the AI Agent, or by clicking an element in visual editing mode and asking for an edit. Edits use monthly AI credits.
- Client intake and contacts
- Intake forms, file uploads and a contact manager collect and organize prospects. They come with Website + Client Engagement and the expert plans.
- Invoicing, payments and eSignatures
- Higher plans send invoices with automated reminders, take online payments and get contracts signed electronically from the same account.
- Email marketing
- Email campaigns and automation to existing contacts are included from Website + Client Engagement up.
- Done-for-you sites
- On Professional and Advanced, a team of copywriters, designers and project managers builds, tests and launches the site, and Advanced adds monthly updates.
B12 pricing
- Starts at
- $20 per month, billed yearly ($24 billed monthly)
- Free plan
- a site, store, portfolio, blog or app on a b12sites.com subdomain, with the visual editor and AI chat, 5 AI credits a day (30 a month at most) and team invites.
- Free trial
- None listed
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | A b12sites.com subdomain, the visual editor with AI chat, 5 daily AI credits up to 30 a month, and unlimited projects to start. Shows B12 ads. |
| Website | $20per month, billed yearly ($24 billed monthly) | A custom domain free for the first year, 100 AI credits a month, up to 10 launched projects, commerce, backends, analytics, integrations and no B12 ads. |
| Website + Client Engagement | $67per month, billed yearly ($78 billed monthly) | 300 AI credits a month, up to 30 launched projects, a custom email address, client intake, email marketing, a contact manager and eSignatures. |
| Professional | $169per month, billed yearly ($199 billed monthly) | A site designed, written and launched by B12 experts, with every client tool, 1 seat and phone support. A setup fee applies; its amount is not shown. |
| Advanced | $339per month, billed yearly ($399 billed monthly) | Everything in Professional with 5 seats, business directory listings, monthly website updates and priority support, plus a setup fee. |
Read from b12.io on Oct 17, 2026. Prices change, so confirm with B12 before you buy.
Ways to pay less
- Annual discountSave about 15% with yearly billing
Yearly billing lowers Website from $24 to $20 a month, Website + Client Engagement from $78 to $67, Professional from $199 to $169 and Advanced from $399 to $339.
Stated on b12.io - Other savingsFirst 7 days for $1
A limited-time offer on the pricing page lets new B12 users try the Website or Website + Client Engagement plan for $1 for the first 7 days. No end date is given.
Stated on b12.io
Works with
- Calendly
- Ecwid
- Eventbrite
- Disqus
- Drift
- accessiBe
- ConveyThis
- Donately
B12 alternatives
- B12 vs Durable
Free plan · from $22/mo
- B12 vs Wix
Free plan · from $17/mo
- B12 vs Squarespace
Free trial · from $19/mo
- B12 vs Hostinger AI Builder
Free trial · from $10.99/mo
- B12 vs Zoho Sites
Free trial · from $1/mo
Common questions
Is B12 free?
B12 has a free plan. a site, store, portfolio, blog or app on a b12sites.com subdomain, with the visual editor and AI chat, 5 AI credits a day (30 a month at most) and team invites. Paid plans start at $20 per month, billed yearly ($24 billed monthly).
How much does B12 cost?
B12 lists 5 plans. Free: $0. Website: $20 per month, billed yearly ($24 billed monthly). Website + Client Engagement: $67 per month, billed yearly ($78 billed monthly). Professional: $169 per month, billed yearly ($199 billed monthly). Advanced: $339 per month, billed yearly ($399 billed monthly). Prices were read from b12.io on Oct 17, 2026.
What platforms does B12 work on?
B12 is available on Web.
Does B12 offer any discounts?
B12 publicly lists the following: Save about 15% with yearly billing; First 7 days for $1.
Does B12 have an Android app?
No Android app was listed when its pages were read on Oct 17, 2026. B12 is listed for Web.
Does B12 have an iPhone app?
No iPhone app was listed when its pages were read on Oct 17, 2026. B12 is listed for Web.
Is B12 open source?
B12 is not described as open source on its own site, as read on Oct 17, 2026.
What does B12 integrate with?
B12's listing names Calendly, Ecwid, Eventbrite, Disqus, Drift, accessiBe, ConveyThis and Donately. A listing names up to eight integrations, so it may connect to more.
Who makes B12?
B12 is made by B12. It dates from 2016.
What are the alternatives to B12?
The closest alternatives to B12 in our directory are Durable, Wix, Squarespace, Hostinger AI Builder and Zoho Sites. Each one has a side-by-side comparison with B12.
How does B12 compare with other website and landing page builders?
B12's GPA of 2.2 is higher than 9 of the 30 other website and landing page builders we grade, and level with 6. It stands best on platforms and integrations (B, above 8 of 30) and worst on ease of use (C, above 0).
Is B12 good value for money?
ToolGPA grades B12 C for value for money. Its paid plans start at $20 a month, against a middle price of $14 for the category: 20 of the 29 others that charge start lower. On features, ease of use and platforms it scores 2.3 out of 4. 8 tools score higher and cost less.
Could I make my own version of B12?
To replace B12 you would be making a builder that other people can use without writing code. That is not a weekend's work, with an AI app builder or without one. That makes this kind of software worth paying for, not this one in particular: 15 of the 30 other website and landing page builders grade higher. It costs $240 a year. What you could not make: A builder that other people can use without writing code. A tool that builds and hosts other apps. Newsletters sent to thousands of people that still reach the inbox. It plugs into other products, Calendly, Ecwid and Eventbrite among them. This is a judgement from its listing. We have not built one.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Oct 17, 2026.