Watchsyntheticusersstruggle,sorealonesdon't.
Autonomous AI browser agents that test your web app like real users and deliver evidence for every issue.
Built for modern web frameworks & browser engines
Join the Private Waitlist
Unlock instant access to the Live Playwright & Gemini AI Testing Playground and get notified when custom agent clusters ship.
Complete toolkit for synthetic user research.
Transform manual user testing into continuous, automated AI-driven verification pipelines.
Chromium-native agent engine
AI browser agents powered by multi-modal reasoning. They execute click paths, input forms, scroll, and handle SPA state changes.
Cognitive behavioral models
Test with diverse user mindsets — from impatient buyers to accessibility users. Emulates real human friction and hesitations.
Real-time action timeline
Inspect telemetry: DOM mutations, console logs, network payloads, and mouse trajectories for every run.
Visual issue validation
Every detected bug includes video replay, DOM snapshot context, and exact reproduction steps.
Quantitative usability metrics
Task completion analysis, cognitive effort scoring, and AI-synthesized issue severity matrices.
VPC & Zero Data Retention
Run agents inside your private perimeter. Deploy on Kubernetes with SOC2 and GDPR compliance.
Test with realistic synthetic personas.
Synthetic personas emulate varying degrees of technical fluency, patience, and device access to catch edge-case UX bugs.
Alex Vance
Power User & Developer
Behavioral Traits
Skips instructions, relies heavily on keyboard shortcuts, inspects edge cases.
Sample Discovered Friction
MediumShortcut Conflict: Cmd+K opens search modal while focus is trapped inside grid filter.
How UserLabs works in 5 steps.
Target App URL
Test any web app environment — preview deployments, staging, or production.
Define Scenario
Describe user tasks in natural language or choose AI-suggested test journeys.
Select Personas
Deploy synthetic user profiles with varied technical skill, patience, and device types.
Autonomous Agents
Browser agents navigate UI in parallel, interacting with real DOM events and APIs.
Actionable Insights
Receive structured UX reports backed by session telemetry and video evidence.
Enterprise-grade security & privacy.
In your data center.
Self-host on bare metal or private Kubernetes clusters. Zero session data leaves your security perimeter.
In your VPC.
Deploy to AWS, GCP, or Azure inside your account with zero telemetry shared externally.
On your workstation.
Run the full agent stack on developer machines for local tests, staging audits, and CI/CD.
SOC 2 Type II Ready
Strict adherence to enterprise data protection and isolation standards.
GDPR & CCPA Compliant
Automated PII masking and instant zero-retention controls.
Frequently asked questions.
UserLabs deploys autonomous AI browser agents that act as real human users visiting your web application. You define a task, and agents with distinct user profiles navigate your site while logging friction points and capturing evidence.
Ready to test your app with autonomous synthetic users?
Deploy your first browser agent session in seconds. Catch UX friction and functional bugs before real users do.