UXUI Principles

Cursor, v0, and Claude generate beautiful interfaces but silently break UX fundamentals. Hick's Law violations, cognitive overload, missing feedback loops. The kind of problems that tank conversion rates and make users leave. UX/UI Principles gives you 168 research-backed principles compiled from 2,098+ peer-reviewed academic papers, plus 5 free validation tools to catch these mistakes before your users do. Free tools (no signup required): AI Design Validator - Paste your design decisions, get matched with research-backed principles and citations. Instant validation powered by AI. UX Smell Detector - Identify 8 common anti-patterns in your interface with step-by-step refactoring recipes to fix them. Flow Checklists - Pre-flight and post-flight checks for SaaS, e-commerce, and dashboard flows. Never ship an incomplete user journey again. AI Prompts Library - 600+ research-backed prompts ready to copy-paste into Cursor, v0, or Claude for UX-aware code generation. Parts Checklist - Component-level validation across 6 design domains. Ensure every UI element follows proven principles. The Principles Library ($29/yr) unlocks all 168 principles with full examples, anti-patterns, and AI prompts for each. One yearly payment, no subscription creep. Built for designers validating AI output, developers shipping AI-generated UI, product managers reviewing team work, and indie makers building with AI tools. Solo-founded, bootstrapped, bilingual (English and Spanish).