UX/UI Principles

What it does

UX/UI Principles is a comprehensive library of 185 research-backed UX/UI design principles, supported by over 2,300 citations from peer-reviewed sources (2020–2026). It provides AI-powered validation tools, 600+ copy-paste AI prompts for tools like Cursor, V0, Claude, and ChatGPT, and a structured framework to help designers, developers, and founders make evidence-based interface decisions. The platform includes six free validation tools (e.g., AI Validator, UX Flows, UX Smells) and a paid Principles Library ($59/year) that unlocks all principles, citations, prompts, and additional features like a developer API and MCP server access.

Who it is for

The product is built for people who directly create user interfaces: UX/UI designers, product managers, developers, and founders or solo makers. It is explicitly not for growth strategists, C-level advisors, or executives focused on metrics like CAC or MRR. The target audience is those who need to validate AI-generated UI, defend design decisions with research, or quickly access actionable principles without reading lengthy textbooks.

Why it matters

In an era where AI generates UI rapidly, teams often lack a shared, evidence-based standard to evaluate quality. UX/UI Principles fills this gap by providing a fixed, complete map of design laws (e.g., Hick's Law, Fitts's Law, Miller's Law) with academic citations. This enables users to move from gut feelings or opinion-based debates to citing peer-reviewed research. The AI prompts are grounded in cognitive science, helping AI tools produce layouts that respect human perception and cognition. For $59/year, it offers a cost-effective alternative to expensive heuristic checklists or fragmented resources like Mobbin or Smart Patterns.

Launch signal

The website is live and fully functional, offering free tools and a paid subscription. The founder, Jose L. Hurtado, is actively promoting the product on LinkedIn. The platform includes a 14-day money-back guarantee and encourages users to try the free tools before purchasing. The library is updated monthly with new principles.

Brand and naming

The name 'UX/UI Principles' is descriptive but generic, lacking distinctiveness for a brand. The domain uxuiprinciples.com is straightforward and memorable for the target audience. The tagline 'Catch AI design mistakes before your users do' clearly positions the product as an AI-powered validator, but the name itself doesn't convey the AI aspect, creating a slight disconnect.