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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

Anchor: theme
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
Anchor: ai-creator

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 →
Anchor: module-library
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…

Anchor: pricing
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.

For our new website, it was particularly important to us to create a clear structure and present our content in a more understandable way. With flexBOX, we were able to build a modern website that is clearly organized and guides visitors smoothly through the content. The flexible modules and design options helped us tailor the new site to our design and requirements. A particularly positive aspect is that the website has a modular structure, making it easier to maintain and expand content in the future. Overall, flexBOX is a great solution for companies that want to build a professional HubSpot website with a clear structure, flexible design, and excellent usability.

Zaalberg, J flexBOX Pro customer · 2026

With flexBOX, we were able to quickly and easily update our website for the second edition of Adelboden Live. Especially for a festival, news, lineup changes, and new content often had to go live on short notice—and we were able to do this flexibly and with minimal effort. It was particularly convenient that existing content could be easily adapted and expanded without having to rebuild the entire structure from scratch.

Käser, P. flexBOX Pro customer · 2026

With flexBOX, we were able to create a website with an online magazine for Z-SYSTEMS that is both visually appealing and easy to maintain on a day-to-day basis. Especially for a company with an international focus, it was important to display content in different languages cleanly and to manage it flexibly. The simple editing directly in the editor is a positive feature. Texts, images and content areas can be adapted without much effort. This means that the website not only remains technically flexible, but can also be kept up to date by the customer themselves.

Ritzmann, M flexBOX Pro customer · 2026

AST-Birrer wanted a clear relaunch: away from the old website and towards a lean HubSpot solution with HubBOX and a defined budget. The site structure was tailored to the most important content - from offers and references to the vehicle fleet, all in German and French. The decisive factor was a solution that remains uncomplicated and can be adapted at any time if necessary. This is exactly what is convincing in everyday life: quick to implement, flexibly expandable and without unnecessary effort during operation.

Burri, E flexBOX Pro customer · 2026

We wanted a solution that could be easily managed on a day-to-day basis with the existing internal resources - and this is exactly where flexBOX convinced us. Due to the many existing interfaces, we made a conscious decision to retain the main Talus/Weblication platform and supplement it with HubSpot. Instead of implementing everything at once, we deliberately prioritized: first the redesign and basic setup, then the online magazine, newsletter and forms. Further expansion steps remain flexible for later. The result is a solution that fits in well with the day-to-day work of the municipality and can be continued internally on its own.

Siegenthaler, A flexBOX Pro customer · 2026

With the new website based on flexBOX, we at Affinitas have created a digital presence that clearly communicates our positioning and is also easier to manage internally. It was crucial for us that content not only looks good, but can also be quickly adapted and further developed on a day-to-day basis. This is precisely where flexBOX comes into its own: Structure that provides orientation, combined with enough flexibility for growth and new topics. The implementation has helped us to present our services more clearly and to clearly map the connection between the website, HubSpot and our marketing activities. At the same time, the system remains easy to understand and manage internally - without unnecessary complexity. For us, this has resulted in a solution that is not only technically convincing, but above all works in daily use.

Weber, R flexBOX Pro customer · 2026

Overall, we are very satisfied with flexBOX and HubSpot. The simple and intuitive operation is particularly positive - even without IT or developer knowledge, professional results can be achieved in just a few steps. The clear GUI, the clearly structured modules and the numerous predefined layouts and presets make day-to-day work much easier and enable ideas and adaptations in the corporate design to be implemented quickly. Reports can also be created easily and publications can be conveniently planned in advance. Overall, the solution impresses with its high level of flexibility, user-friendliness and efficiency. flexBOX is a very strong solution, especially for companies that want to establish or further develop a modern and professional web presence with manageable effort.

Services, D flexBOX Pro customer · 2026

The implementation of our website went smoothly. With Flexbox, we were able to implement our ideas without much effort and present the most important content efficiently.

Sundin, S flexBOX Pro customer · 2025

I really enjoyed using the flex box pro theme. I found it to be easy to use and have more settings and flexibility than I anticipated which I really appreciate. Thank you.

Singh, M flexBOX Pro customer · 2025

The flexBOX Pro theme is convincing across the board. It offers a flexible, modern design that can be easily customized, combined with a high level of user-friendliness and a professional structure. For us as a growing start-up, it was the perfect choice - and that's why we award it full marks: 5 out of 5 stars.

Tomczak, A flexBOX Pro customer · 2025

flexBOX Pro bietet eine Vielzahl an Funktionen und Anpassungsmöglichkeiten, die es erleichtern, eine Webseite individuell zu gestalten. Besonders hilfreich sind die vorgefertigten Module und Layouts, die den Start erleichtern und viele Optionen für die Gestaltung bieten. Das Drag-and-Drop macht die Bedienung für erfahrene Nutzer*innen recht intuitiv. Allerdings bringt die Vielfalt der Funktionen auch ihre Tücken mit sich. Gerade für Einsteiger*innen kann die Komplexität anfangs überwältigend sein, da es etwas Zeit und Geduld erfordert, alle Möglichkeiten zu durchschauen. Insgesamt ist flexBOX Pro eine gute Wahl für Unternehmen, die Wert auf Flexibilität und Individualität legen, auch wenn der Umgang mit dem Template anfangs etwas Eingewöhnung erfordert.

Moser, A flexBOX Pro customer · 2024

Das FlexBox Pro Website-Template überzeugt durch seine Professionalität und umfassenden Anpassungsmöglichkeiten. Mit einer beeindruckenden Auswahl an Widgets ermöglicht es eine hohe Flexibilität und Vielfalt bei der Gestaltung der Webseite, passend für Unternehmen jeder Größe. Seine Stärke liegt in der Fähigkeit, das individuelle Corporate Identity (CI) eines jeden Unternehmens präzise widerzuspiegeln, was es zu einer ausgezeichneten Wahl für mittelständische Betriebe und große Konzerne gleichermaßen macht. Die Investition in dieses Template zahlt sich für alle aus, die eine professionelle, maßgeschneiderte Webpräsenz anstreben.

Fischer, F flexBOX Pro customer · 2024
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.