Principal UX Designer
Usability, accessibility, hierarchy, and visual polish — mapped to WCAG.
Your instant principal UX expert
UXexpert gives you a principal-level design review, an engineering code audit, and a growth strategist's conversion analysis — in one prioritized report, in seconds.
Built for indie hackers, agencies, and product teams
No account required. Run privately in your browser, or bring your API key for a full Claude review.
How it works
Drop in HTML, CSS, and JavaScript files, paste code directly, or point UXexpert at a live URL or public GitHub repository. Add design systems or brand guidelines to tune enforcement.
Choose the audience you are building for, set custom rules, and load expertise skills that teach the reviewer your domain — from telco BSS collections consoles to patient portals. The audit re-weights itself around your users.
Every finding is scored by severity, effort, and impact, and arrives with a concrete fix — often a code snippet you can paste in as-is. Export the report and get to work.
Live playground
Two engines, your choice: the local engine runs entirely in your browser and nothing you paste leaves your machine, or bring an Anthropic API key for a deeper review by Claude. New here? Load the sample app and run your first audit in one click.
Public GitHub repos are fetched right in your browser — a branch or folder link works too.
Teach the reviewer your domain: who your users are, what to research and validate, and what good design means in your world. Skills are applied in depth by the Claude AI engine.
Used only for direct calls from this page to api.anthropic.com. If remembered, it is stored in this browser's local storage — never on a server. Create a key at console.anthropic.com.
Nothing to audit yet — add your product in step 01.
Nothing to paste? Load the sample app
Features
Not three separate reports — one prioritized roadmap where design, engineering, and growth trade-offs are weighed against each other.
Every technical finding ships with a corrected snippet you can paste straight into your codebase.
Auditing for Gen Z mobile users in emerging markets is a different job than auditing for enterprise buyers. Priorities re-weight to who you serve.
Upload skills that make the reviewer an expert in your domain and your users, plus rules like AAA contrast and minimal motion. The audit enforces them.
A retention roadmap, A/B hypotheses, and conversion fixes grounded in what is actually on your page.
Markdown export today. PDF, Jira tickets, Figma comments, Notion pages, and shareable report links are on the roadmap.
Re-run after each iteration and compare scores. Automatic history tracking is on the roadmap.
Local analysis never leaves your browser. AI reviews go directly from your browser to Anthropic with your own key — no middleman server.
On the roadmap: wire audits into CI so every pull request gets a design, code, and growth review before merge.
Pricing
Everything on this page, today
For people who ship every week
For teams with standards to enforce