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Theme • AI Module Generator

Stop coding rigid HubSpot themes. Generate bespoke modules instantly.

flexBOX Pro pairs a token-based, AI-ready HubSpot theme with a generative engine that turns mockups, copy, or a plain-language brief into native, production-ready CMS modules — all rendered in your style.

80%

faster delivery for agencies

35+

ready-made native modules

100%

native HubL, HubDB & CRM

01
PART 01 — THE THEME

flexBOX Pro, the theme foundation.

A token-based, AI-ready HubSpot theme built by Swiss agency Business4you — the design system every module and page inherits.

THE THEME

Meet flexBOX Pro — the Swiss knife of HubSpot themes.

Every module the AI generates lands on a theme that was engineered for freedom. flexBOX Pro replaces locked, pre-configured layout blocks with an open system: add, clone, reorder, or remove sections directly on your page, and style everything globally through one token-based design system.

It's the end of fixed layout boundaries — a theme built so that unique, data-driven structures never stall your pipeline again.

Built by Business4you AG Top-rated digital agency, Switzerland
theme-tokens.json — set once, applied everywhere
// Define your brand once — every module obeys
{
"colors": {
"primary": "brand",
"accent": "text-highlight",
"surface": "bg-primary"
},
"typography": {
"headline": "Space Grotesk",
"body": "Inter"
},
"shape": {
"radius": "18px",
"spacing": "8pt-grid"
}
}

Free Onboarding Workshop

Get started hands-on — a guided onboarding workshop is included so your team ships from day one.

Book your free workshop

2 Hours Dev Time Included

Two hours of free developer customization support to help build your website smoothly.

Claim your dev hours

Free Support

Free support for all customers with responses within 24 hours on weekdays — by the theme's own experts.

Get support

Figma File Included

A customizable design file tailored to your concept — design and develop in perfect sync.

Get the Figma file
Why flexBOX Pro

Four reasons teams never go back to rigid themes.

One theme that styles itself, bends without code, speaks AI fluently, and loads before your visitors blink.

01

Token-Based Design System

Set up your theme once — colors, typography, shape, and spacing as design tokens — and every module, section, and template renders in your style automatically. Change a token, re-skin the entire site.

  • Global theming
  • Design tokens
  • One-source-of-truth
02

Flexible Content — Without Coding

Build rich layouts with flexible content elements and the powerful grid module — full control over columns, backgrounds, and borders that overcomes HubSpot's section limitations. Non-technical teams ship pages developers used to dread.

  • Grid & column options
  • 16 card layouts
  • No-code editing
03

AI-Ready Theme

Engineered for the era of answer engines: EEAT-friendly templates and native JSON-LD structured-data support make your content legible to search engines and AI assistants alike.

"@context": "https://schema.org","@type": "Organization", // auto JSON-LD"name": "{company.name}"
04

Blazing Fast

Performance-optimized markup, scoped non-leaking CSS, and SEO-ready output out of the box. Speed and search visibility baked in — not bolted on — for an outstanding user experience on every device.

  • Optimized markup
  • Scoped CSS
  • SEO-ready

PART 02 — THE AI MODULE CREATOR

Generate bespoke modules instantly.

The generative engine on top of the theme: turn mockups, copy, or a plain-language brief into native, production-ready HubSpot modules.

FireShot Capture 038 - flexBOX Pro — AI-Ready HubSpot Theme + Generative Module Engine - []

Three paths from concept to native code.

Start from a visual, a written brief, or a conversation — the AI guides discovery and assembles production-grade HubSpot modules.

01

Image-to-Module Discovery

Upload a screenshot or high-fidelity mockup. The engine runs structural analysis, isolates repeating layouts, recommends edit fields, and guides you through compilation.

02

Text-to-Schema Synthesizer

Paste raw content, functional specs, or structured copy. The AI processes the hierarchy, maps variable content inputs, and generates standard field configuration files natively.

03

Conversational Dev Sandbox

Launch a free chat session and build step by step. Instruct the AI on custom CSS, HubDB relationships, and JavaScript behaviors through iterative, guided prompts.

Once it's built, it's yours

Two ways to ship every module.

Grab the raw source as a .zip, or push straight into a child theme — no CLI, no manual uploads.

Option A

Download as .zip

Every generation returns a complete, native module bundle you own forever. Extract it and upload through Design Manager or the HubSpot CLI.

  • module.html — Rendering template
  • fields.json — Editor schema
  • meta.json — Module metadata
  • module.css — Scoped styles
Option B

Deploy to your HubSpot portal

Connect your portal once, then push modules directly into any child theme. Pick the target, hit upload, and it's live in your editor.

Push module to portal HubSpot connected
Module name Company Directory
Target theme flexBOX Pro — Child Theme
Portal
  • b4you Sandbox sandbox
  • Client Portal production
Push to HubSpot →
Module Library

A ready-made library, growing weekly.

Browse production modules built for flexBOX Pro — log in and drop any of them straight into your theme.

Loading modules…

Pricing

Transparent pricing, built to scale.

Start free on Light to test the engine, or unlock the full enterprise platform with Pro.

flexBOX Light

The ideal sandbox tier

Free

  • 1 free AI generation credit
  • 1 premium module download
  • Interactive guided chat
  • Standard field compilation
  • Free theme install included
Testimonials

Our customers love us.

flexBOX offers countless settings that allow extensive customization. At the same time, it keeps the system clear and intuitive despite all the options — so even beginners aren't overwhelmed.

P. Bercher flexBOX Pro customer · 2023

Using the flexBOX Pro template was incredibly straightforward and intuitive, making the process of overhauling our restaurant's website a breeze.

I. Mösching Sonne Restaurant · 2023
Engineering FAQs

Structural, compliance & hosting answers.

Traditional themes provide a locked set of pre-coded templates and layout blocks. This platform is a dynamic generative developer tool: upload design layouts, paste copy briefs, or run a step-by-step chat session to build custom modules for unique requirements — eliminating structural limitations without compromising design or code quality.

Every download includes a complete, upload-ready module folder: the field schema, the template markup with scoped styles and behavior, and the module metadata. No manual cleanup or file reassembly is required before uploading to your portal.

Data-driven modules are generated with the correct picker fields and query patterns for your chosen source, including safe empty states and editor previews. Records that require authentication are wired with the appropriate access guidance so protected data is never exposed on a public page.

Each generation, refinement, and repair pass consumes tokens from your balance. Higher tiers include a larger monthly allowance and faster processing, and the remaining balance is always visible before you start a new build session.

Yes. Attach a design reference, paste an existing copy brief, or describe your brand rules in chat. The output is mapped onto your theme's own color, spacing, and typography system so generated modules stay consistent with the rest of the site.

flexBOX Light — Free Forever

Test it all with flexBOX Light.

Install the free theme and generate your first module on us. One free AI credit, one premium library download, free onboarding — no card required.

1 free credit included · free support · free onboarding workshop

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The generative engine for HubSpot CMS — on a token-based, AI-ready theme. Turn mockups, copy, or a brief into native, production-ready modules.