MockCraft – AI Prototype Style Rescue

Upgrade Codex/Claude-generated prototypes into professional-looking designs

Problem

When developers use Codex for UX prototyping, the results often look amateurish—bad fonts, spacing, and colors, with stiff interactions. Even attaching skills like apple-design doesn’t save it. People want a polished look but end up retrying blindly.

Solution

A prototype post-processor: takes AI-generated HTML/CSS prototypes and automatically re-skins the visual layer using curated design systems (font pairings, spacing rhythm, color palettes, micro-interactions), producing a noticeably more professional result. Users can switch styles (minimal, Apple-like, Material) and export design tokens for development.

Users

Product managers, indie developers, and early founders prototyping with AI

MVP

Upload or paste AI-generated prototype HTML/CSS; built-in 3–5 curated design systems applied automatically; one-click style switching with live preview; export optimized code and design tokens; MVP only improves the visual layer, not layout or interaction logic.

Revenue

One-time purchase ($19–29) or pay-per-use ($2–3 per optimization); free tier offers 2 optimizations daily with a watermarked preview.

Why now

Vibe coding has non-designers building prototypes en masse, but AI-generated visuals are a widespread pain point. High-quality design systems can be pre-encoded as rules, letting an indie developer deliver a dramatic improvement without a big team.