Launch and run your practice from one tool
Generate a professional site, take bookings, send invoices, and sign contracts without stitching together separate apps.
B12
Website Builder
Verified WEBSITE BUILDER
B12 deal: Free to start; paid from ~$42/mo
AI website builder for service businesses — generates a site in minutes, then bundles scheduling, invoicing, contracts, email, and a basic CRM in one platform.
- Fast AI site generation
- Bundled client tools
- Built for service businesses
- Free plan to evaluate
SaaSTweaks Score
62/100Solid — with caveats★★★★★
B12 spins up a professional site for a service business in minutes with AI, then bundles the back office — scheduling, invoicing, contracts, email and payments — into the same subscription. It's a genuine time-saver for solopreneurs; design ceiling and platform lock-in keep it a considered pick rather than a slam dunk.
- Deal Strength3.0/10
There's no exclusive coupon; the value is a free plan (a B12 subdomain site with a handful of daily AI credits) plus an introductory $1/month for the first three months on paid tiers. That lets a service business stand up a real site and test the client tools before committing to the standard rate.
- Value for Money8.0/10
For an all-in-one, the pricing is fair: free to start, then the Website plan at $49/month and the Website + Client Engagement plan at $78/month. Because those fees fold in a website, invoicing, contracts, email marketing and payments, the bundle can undercut buying a site builder plus separate scheduling and billing tools — provided you'll actually use the extras.
- Capability8.0/10
B12 generates a mobile-responsive site from a few prompts and pairs it with a service-business back office: online scheduling, invoicing and payments, contracts with e-signature, client intake forms, a contact manager and email marketing. The trade-off is design ceiling — it's optimized for clean, functional professional sites rather than bespoke, pixel-perfect custom design.
- Time to Value8.0/10
This is the core appeal: answer a short prompt and B12's AI drafts a complete, editable website in minutes, then a visual editor and AI chat let you refine it without code. A service provider can go from nothing to a live site with booking and invoicing wired up the same day rather than over weeks.
- Trust & Reliability5.0/10
B12 is an established AI-website provider aimed squarely at service professionals, which supports a reasonable baseline of trust. The score stays mid-range because it's a focused SMB platform rather than a large, deeply benchmarked incumbent, and it publishes limited formal reliability detail such as an uptime SLA.
- Flexibility & Exit5.0/10
The convenience of an all-in-one is also its lock-in: the site, client records, contracts and billing all live inside B12, and there's no clean one-click export to another host, so leaving means rebuilding elsewhere. Month-to-month billing keeps the commitment light, but the platform dependency is the real switching cost.
Scored 2026-06-07 · How we score →
About B12
Quick answer: B12 is an AI website builder aimed at professional-service businesses — lawyers, accountants, consultants, agencies — that generates a draft site fast and then layers on the back-office tools those firms actually need: online scheduling, invoicing, contracts, intake, and email. It is best seen as an all-in-one client workflow platform rather than a pure website tool. There is a free plan, then paid tiers from roughly $42–$49/mo.
- What it is: AI website builder plus scheduling, invoicing, contracts, intake, and CRM for service firms.
- Best for: Solo professionals and small service businesses that want a site and client tools without juggling separate apps.
- Standout: AI drafts a tailored site in about a minute, then the same platform runs your client workflows.
- Pricing: Free plan; paid plans from roughly $42–$49/mo, scaling to higher team tiers (confirm at signup).
- Rivals: Squarespace, Wix, Durable.
What is B12?
B12 is an AI-powered website builder built specifically for professional-service businesses. You answer a few questions about your firm, and B12 generates a draft website — copy, layout, and images — in about a minute, which you then refine. Where it differs from generic site builders is what comes after the website: B12 bundles the tools a service firm uses to win and serve clients, including online scheduling, invoicing and payments, contracts and eSignatures, client intake forms, email marketing, and contact management.
That positioning matters. B12 is competing less with pure design tools and more with the stack of separate apps a small consultancy or practice would otherwise pay for individually. The trade-off is that its design flexibility is narrower than a tool like Squarespace or Webflow, and you pay for the platform even if you only use the website. For a firm that will actually use the scheduling, invoicing, and intake features, the math is compelling; for someone who just wants a brochure site, it can be more than they need.
Key features
AI site generation
Generates a tailored draft website with copy, structure, and images from a short questionnaire in about a minute.
Online scheduling
Let clients book appointments directly from your site with calendar sync and reminders.
Invoicing and payments
Send invoices and accept online payments without a separate billing tool.
Contracts and eSignatures
Create and send contracts for clients to sign online, built into the same workflow.
Client intake and CRM
Intake forms plus contact management to capture and organize leads and clients.
Email marketing
Send campaigns and newsletters to your contact list from inside the platform.
B12 pricing
B12 offers a free plan that lets you generate and launch a basic site on a B12 subdomain — useful for evaluating the AI builder. Paid plans start at roughly $42 to $49 per month (the figure varies with monthly versus annual billing) and add a custom domain, more AI editing, analytics, and the on-site conversion tools. Higher tiers layer in the full client-engagement suite — custom email, payments, invoicing, intake, contracts, and email marketing — and then team plans with multiple seats, monthly website updates, and priority support. Because the value is concentrated in those bundled tools, price it against what you would otherwise pay for separate scheduling and invoicing apps. Confirm current tiers and limits at signup.
Free
Basic site on a B12 subdomain
~$42–$49
Entry paid plan, per month
All-in-one
Site + scheduling + invoicing + CRM
Team tiers
Multiple seats and priority support
B12 vs Squarespace vs Wix
| Tool | Best for | Pricing | Standout |
|---|---|---|---|
| B12 | Service firms wanting site plus client tools | Free, then ~$42–$49+/mo | Bundled scheduling, invoicing, contracts, intake |
| Squarespace | Design-led brand and portfolio sites | From ~$16–$23/mo | Polished templates and design control |
| Wix | Flexible general-purpose sites | From ~$17/mo | Huge app market and drag-and-drop freedom |
✓ Use it if you
- Run a service business and book clients online
- Want invoicing, contracts, and intake in one platform
- Need a professional site fast without a designer
- Are tired of paying for separate scheduling and billing apps
✗ Skip it if you
- Only need a simple brochure or portfolio site
- Want maximum design freedom and custom layouts
- Already run a separate scheduling, CRM, and billing stack you like
Is B12 worth it?
B12 is worth it specifically for professional-service businesses that will use the bundled client tools. If you book appointments, send invoices, and onboard clients with contracts and intake forms, having all of that plus your website in one subscription can replace several separate apps and justify the price. The hesitation — and why we land on wait rather than an outright buy — is fit: if you only want a website, B12 is more platform (and more cost) than you need, and dedicated builders give you more design freedom. Try the free plan, map the bundled features to tools you already pay for, and upgrade if the consolidation genuinely saves you money and time.
Capabilities
- • AI-generated draft website in about a minute
- • Online appointment scheduling with reminders
- • Invoicing and online payments
- • Contracts and eSignatures
- • Client intake forms
- • Contact management and basic CRM
- • Email marketing campaigns
- • Custom domain and on-site conversion tools (paid tiers)
Watch: B12 in action
Official video from the B12 team.
What's included
What SaaSTweaks members actually get with B12.
Consolidate your client stack
Replace separate scheduling, billing, and intake subscriptions with one platform that also hosts your website.
Get online fast
Use AI to produce a credible site in minutes, then add payment and scheduling tools as the business grows.
How to claim
-
Click claim
Hit the button on this page — opens the partner site in a new tab.
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Sign up through the partner link
No code needed — the offer applies automatically when you register through our B12 link.
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Offer applies automatically
No surcharge to you — verified by the SaaSTweaks Deal Desk, not the vendor.
Frequently asked
How much does B12 cost?
B12 has a free plan ($0, a B12-subdomain site with limited daily AI credits), then two paid tiers: the Website plan at $49/month and the Website + Client Engagement plan at $78/month. Both run an introductory $1/month for the first three months, and paid plans include a free custom domain for the first year.
Is B12 really free?
There's a genuine free plan, but it's limited: you get a mobile-responsive site on a B12 subdomain, the AI editor and a small allowance of daily AI credits, with B12 branding shown. It's best for testing the builder — a custom domain, removing branding and the client tools require a paid plan.
What does B12 include besides a website?
The paid plans bundle a full service-business back office alongside the site: online scheduling, invoicing and payments, contracts with e-signature, client intake forms, a contact manager and email marketing. That's the reason to choose B12 over a plain website builder — it replaces several separate SMB tools with one subscription.
Who is B12 best for?
B12 suits solo service providers and small professional firms — consultants, agencies, coaches, local services — who need a credible website plus booking, contracts and billing without hiring a designer or stitching tools together. Businesses that need heavily custom, design-led websites will find its templated AI output too constraining.
How does B12 compare to Wix or Squarespace?
Wix and Squarespace give more design flexibility and larger template and app ecosystems, while B12 leans into AI generation and a built-in client back office (scheduling, invoicing, contracts) aimed at service businesses. Choose B12 when running the business inside the site matters more than fine-grained design control.
What is B12's biggest limitation?
Two things: design flexibility is capped compared with a full builder, so highly custom sites aren't its strength, and the all-in-one model creates lock-in — your site, clients, contracts and billing live in B12 with no simple export, so switching later means rebuilding. It's best when you'll commit to the bundle.
SaaSTweaks members
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What you get Free to start; paid from ~$42/mo
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