Catch UX friction
before you merge.
Automated journey audits on every pull request. Grounded AI personas simulate real users to find issues in 2 minutes, not 3 days.
Integrates with your workflow
Trusted by innovative teams at
Automated UX Testing in 3 Steps
From pull request to evidence report in minutes
Connect Your Repo
Install the GitHub app. We'll automatically detect UI changes on every pull request.
Run Simulation
Grounded AI personas journey through your changes. Vision-powered audits catch friction points.
Get Evidence
Review the simulation report on your PR. Merge with confidence or fix issues first.
Why Teams Choose Litmusly
The simulation layer that catches what automated tests miss
Vision-Powered Audits
Our personas don't just read code—they see your UI. Gemini Vision integration catches visual hierarchy issues, content gaps, and navigation problems that text-only agents miss.
Grounded Intelligence
Connect your CRM, support tickets, and research data. Our personas become digital twins of your actual customers, providing context-aware feedback.
Instant Feedback
No scheduling, no recruiting, no waiting. Get evidence reports in 2 minutes on every PR. Iterate 100x faster than traditional user testing.
CI/CD Integration
Native GitHub, GitLab, and Vercel integration. Simulation results appear as PR comments, making UX quality part of your merge workflow.
Infinite Iteration
Run unlimited simulations without budget constraints. Test every variant, every edge case, every hypothesis until you're confident.
Evidence-Based Decisions
Replace gut feelings with data. SHPI (Synthetic-Human Parity Index) scores show correlation to real user behavior.
What Developers Say
"We used to spend 3 days on user testing for every feature. Now we get evidence reports in 2 minutes on every PR. It's like having a UX researcher on the team, but automated."
"Litmusly caught a critical onboarding issue that our automated tests missed. The persona couldn't find the CTA because of poor visual hierarchy. Saved us from shipping bad UX."
Don't Ship UX Debt
Every pull request gets an evidence report. Catch friction before it reaches production.
See It In Action
Try a live simulation right now
Live Simulation Demo
Enter a URL to run an instant UX simulation