Cross Browser Testing on 3,000+ Real Browsers
Validate every pixel, interaction, and layout across Chrome, Safari, Firefox, Edge, and beyond, on real hardware. Ship with confidence knowing your app works everywhere your users are.
World’s Largest Virtual Agentic
Engineering and Quality Conference
Trusted by 2M+ users globally at
"We have tripled our tests and are now executing tests in less than 2 hours with 78% Faster Test Execution"
"We figured out a more efficient way to monitor system health and resolve failures earlier in lower environments."
"TestMu AI has significantly boosted our testing speed, is easy to implement, and provides exceptional support."
"With 70% faster test execution, TestMu AI helped us achieve faster time-to-market and enhanced CX."
All Your Testing Needs. One Powerful Platform
Live Testing on Real Browsers
Real Hardware Cross Browser Testing
Test across real browsers and devices with zero setup, ensuring true-to-user accuracy every time.
Start Your Free Cross Browser Test
- Run tests on Chrome, Safari, Firefox and Edge across real desktops, tablets and phones.
- Access native DevTools during every live cloud browser session.
- Test unique combinations like iOS on Brave, Galaxy S21 on Firefox, and more.
Scalable Test Automation
Automated Cross Browser Testing at Scale
Execute parallel tests across environments with seamless CI/CD integration and faster feedback loops.
Run Your First Parallel Browser Test- Run parallel tests across hundreds of browser combinations instantly.
- Trigger automated browser tests on every PR using GitHub Actions or Jenkins.
- SmartWait removes flakiness caused by dynamic content timing.
UI Consistency & Visual Accuracy
Visual Regression and Responsive Testing
Detect layout shifts, UI inconsistencies, and design regressions across browsers with precision.
Explore SmartUI Visual Testing- Spot pixel-level and DOM-level visual changes across every browser.
- Detect CSS issues like Safari WebKit bugs, IE 11 Grid problems, and more.
- Preview responsive breakpoints using real rendering engines.
Why Choose TestMu AI for Cross Browser Testing?
Built-in DevTools
Open Chrome or Safari DevTools inside your test sessions, no workarounds needed.
Screen Resolution
Change your PC's resolution to see how your site behaves at different screen sizes.
Multi-Device Testing
Test on 6 real devices simultaneously and check multiple site variations side by side.
Network Throttling
Simulate 3G, 4G, offline, or unstable connections to check how your site holds up.
Geolocation Testing
Test your site from different geoIPs to ensure users get the right experience everywhere.
Debug UI on Real Devices
Fix rendering, responsiveness, and browser-specific issues by debugging your UI on real devices.
50%
reduction in test execution time
“HyperExecute is a highly reliable test execution platform and has excellent customer support.”
Sagar Uday Kumar
Sr. Engineering Manager
More Reasons to Love TestMu AI
TestMu AI Named a Challenger in the 2025 Gartner® Magic Quadrant™
Read ReportTestMu AI recognized in The Forrester Wave™: Autonomous Testing Platforms, Q4 2025
Read ReportWall of Fame
TestMu AI is #1 choice for SMBs and Enterprises across the globe.
Enterprise-Grade Security
We safeguard your data and AI systems with global security, privacy, responsible AI, and ESG standards.
Integrations
Works where you work, 120+ integrations with the tools your team relies on.
Users
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Tests
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Frequently asked questions
TestMu AI forEnterprise
Get access to solutions built on Enterprise
grade security, privacy, & compliance
- Advanced access controls
- Advanced data retention rules
- Advanced Local Testing
- Premium Support options
- Early access to beta features
- Private Slack Channel
- Unlimited Manual Accessibility DevTools Tests