Visual builder for real engineers

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Overview

Creon is the visual builder that writes clean, semantic HTML & CSS as you drag — not after, not approximately. Every flex rule, every grid constraint, every layout decision maps directly to real CSS in real time.

Built for engineers who review the output, not just the preview. Not for vibe coders. Not for shortcuts.

No spam. No noise. Just a ping when we're ready.

By the numbers

The markup tax is real and measurable

These are not estimates. They are sourced figures from industry surveys and independent research — the cost of the status quo your team is already paying.

0%
of a developer's time is spent writing HTML & CSS — the task 44% call their biggest slowdown
— Infragistics Developer Survey, 2023
0h
lost per feature to design handoff, clarifications, and pixel-by-pixel corrections before a line of logic is written
— HTC / Figma workflow study, 2025
0%
of websites have detectable WCAG accessibility failures — a direct result of non-semantic, unstructured markup
— WebAIM Million Report, 2025
0%
of mobile visitors abandon a page that takes more than 3 seconds to load — bloated builder output is a direct cause
— Google / SOASTA Research
The problem space

Every current option has a real cost

There are three ways engineers try to solve the markup problem today. Each one works — until it doesn't.

OPTION 01
AI Tools
v0, Bolt, Lovable, Cursor
◆ Fast but dirty
✓ What works
Ship an MVP in minutes
Great starting point for rapid prototyping
✕ What breaks
  • Cannot match 100% of your vision
  • Generated code is not clean or semantic
  • No SEO awareness, no accessibility
  • Security issues out of the box
  • Not scalable — breaks as the project grows
  • Works only for small throwaway projects
You get speed, but you inherit every problem that comes with code you didn't write and can't fully understand.
OPTION 02
Traditional Visual Builders & CMS
Webflow, WordPress, Wix
◆ Pretty but trapped
✓ What works
Match your vision with extra time
More control than AI, closer to what you imagined
✕ What breaks
  • Same code quality issues as AI tools
  • Not scalable for serious systems
  • No clean or semantic page output
  • Security and performance problems in the generated code
  • Slow performance and painful to use
You get visual control, but you're still stuck with bloated output, vendor lock-in, and a tool that fights you while you work.
OPTION 03
Coding It Yourself
Raw HTML/CSS, React, component libraries
◆ Clean but costly
✓ What works
Best quality if you have the skill and time
Full control, clean output, no abstractions
✕ What breaks
  • Requires significant time, skill, and experience
  • Complex projects may exceed one person's capacity
  • Teams grow → systems get complex → coordination fails
  • Designers stuck delivering static Figma files
  • Developers stuck translating pixels instead of writing logic
  • UX designers can't test their solutions live while working
You get quality, but you pay in time, team friction, and a process that doesn't scale without a lot of organizational overhead.
The Creon approach

You write HTML & CSS. Visually.

Creon is not a design tool that exports code. It is a visual interface for authoring markup — where every drag, resize, and layout choice is a real CSS declaration happening in real time. The rendered page is the canvas.

Live iframe preview
Your design is a real rendered page. Not a mockup. Not a simulation. What you see is exactly what gets exported.
GPU-accelerated canvas
Built on SolidJS with optimized diffing. Real-time updates at 60fps on any device, including low-end hardware.
Flex & Grid layout system
Every layout decision maps to real CSS rules. You work within the actual web layout model — visually.
Guided semantic HTML
Creon surfaces all semantic HTML elements — section, article, nav, main, aside — so you always choose the right tag, not guess it.
A11y & SEO visible by design
ARIA roles, heading hierarchy, and landmark regions are surfaced as you build — not enforced, but always visible and recommended.
Figma-like DX
Drag, drop, inspect, override — a canvas UI that feels immediately familiar to anyone who has used a modern design tool.
Time you get back

Creon gives your team real hours back

Eliminating the design-to-code translation loop is not a convenience — it is a measurable recovery of productive engineering time, backed by independent research.

0%
of engineering time is wasted syncing designs with code — the exact loop Creon eliminates
— Figma × Anthropic, 2025
0%
of a developer's week is lost to context-switching between design tools and code editors
— Axify / Microsoft Research
0%
faster delivery achieved when design-to-code friction is removed from the sprint workflow
— Business Development Bank of Canada
0%
of a frontend developer's total work time is spent writing HTML & CSS — before any logic is touched
— Infragistics Developer Survey, 2023
What Creon delivers

Numbers that matter at export

These are output targets built into Creon's architecture. Clean, readable, structured markup is not something you opt into — it is the natural result of how the tool works.

0
runtime JS in exported markup — pure HTML & CSS output, zero framework dependency
— Creon architecture
0%
of semantic HTML elements surfaced and labeled as you build — section, nav, main, article, aside — so you always choose correctly
— Creon design system
0fps
sustained canvas update rate on low-end devices — GPU-delegated via SolidJS reactive rendering
— Creon benchmarks
0+
Lighthouse accessibility score target per exported page — achieved through informed structural choices, not auto-injection
— Creon quality target
Audience

Creon is not for everyone.
That's the point.

Creon is a precision tool. We optimized for engineers who care deeply about output quality. If you don't, there are plenty of other tools happy to take your money.

✓ Built for you
Frontend & Fullstack engineers who respect clean output
Technical UI/UX designers who iterate in the browser, not on artboards
Product teams shipping fast without compromising code quality
Engineering leads who review every line that goes to production
✕ Not for you (and that's okay)
Vibe coders who don't care what the output looks like under the hood
Teams needing a full CMS, backend, or deployment pipeline
Pure designers who have zero interest in how HTML works
Anyone who thinks div soup is fine if it renders correctly
Honest scope

What Creon does not solve

We believe in tools that know their lane. Creon owns markup. Nothing else.

Not a backend
Creon produces no server logic, no APIs, no database schemas. The ~61% of developer time spent outside HTML/CSS is yours to own.
61%of dev time is backend & logic — Creon doesn't touch it
Not a CMS
There is no content management layer, no hosting, no deployment pipeline. Creon exports code. What you do with it is entirely up to you.
0CMS features — intentionally
Not a full design system
Creon enforces layout rules but does not auto-generate your brand tokens, design language, or component documentation. That thinking is still yours.
100%layout structure — enforced. Brand decisions — yours.
Not magic for big projects
Large-scale products have 10+ systemic problems. Creon solves exactly one of them with maximum quality. That is the entire proposition.
1problem solved — completely, not partially
Early access

Be on of the first engineers
to build without markup pain.

Join the waitlist. No spam. Just a ping when we're ready for you.

© 2026 Creon · Built for real engineers · Not for vibe coders