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Automated Website Testing Tool

Test early, debug accurately, and release rapidly across 3000+ different browsers, browser versions, and operating systems.

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Next Chapter TestMu AI

LambdaTest is now TestMu AI

The Next Chapter

Trusted by 2M+ users globally at

Microsoft
OpenAI
Nvidia
Boomi

"We have tripled our tests and are now executing tests in less than 2 hours with 78% Faster Test Execution"

Hrishi Potdar , Quality Engineering Architect

Boomi
GitHub
Best Egg

"We figured out a more efficient way to monitor system health and resolve failures earlier in lower environments."

Tenny , Engineering Operations Lead

Best Egg
Workday
Akamai
Louis Vuitton
NBCUniversal
City Furniture

"TestMu AI has significantly boosted our testing speed, is easy to implement, and provides exceptional support."

Nicholas Paulsen , Senior Quality Engineer

City Furniture
Cox
Transavia

"With 70% faster test execution, TestMu AI helped us achieve faster time-to-market and enhanced CX."

Daniel de Bruijn , Quality Assurance Automation Engineer

Transavia
Estée Lauder
TripAdvisor
Bohoo

Enhance Test Reliability with Auto-Healing

Overcome the challenges of flaky tests and unexpected failures with Auto Healing. Experience your test suite becoming more robust and reliable by automatically recovering from certain failures without manual intervention.

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Test Execution Speeds that are Unmatched

Run your test scripts on the fastest test execution platform online. With TestMu AI you can cut down your test execution time significantly.

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Test Confidently with TestMu AI SmartWait

Perform actionability checks powered by the innovative SmartWait Algorithm, ensuring precise execution and minimizing false positives. Enhance automation capabilities, streamline testing processes, and deliver exceptional software quality.

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On-Premise Selenium Grid For Enterprises

Leverage the convenience of TestMu AI cloud infrastructure paired with security and performance behind your own firewall. TestMu AI's cloud-based infrastructure can scale to meet your testing needs, whether you're a startup or an enterprise.

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Find Out Visual UI Bugs Using Smart UI Testing.

Smart UI Comparison enables you to identify visual deviations introduced with the new build. You can easily identify visual differences between versions of an application by instantly spotting changes in icon size, padding, color, layout, text, and much more.

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Test Smarter And Release Faster With TAS - Test At Scale

Receive faster feedback on code changes and decrease job times with Test At Scale. TAS enables developers and engineering leaders to reduce job times by up to 95%, accelerate testing, and gain actionable visibility into their test cases.

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Faster Automated Screenshots Website Testing

Perform automated screenshots website testing with TestMu AI, a cloud-based cross browser testing solution enabling you to test your website across 3000+ mobile and desktop browsers by selecting the configurations.

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Bypass Firewalls for Seamless Test Execution

Easily overcome network restrictions and ensure smooth test execution by seamlessly bypassing firewalls or proxy servers during software testing. Integrate custom headers into tests to effectively tackle network limitations while maintaining network security, enabling comprehensive testing of your software.

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AI-Agentic Quality Engineering

Plan, author, and evolve end-to-end tests using plain english with KaneAI.Learn More

Kane AI
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Seamless Collaboration
via Integrations
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120+ more

Why TestMu AI for Automated Test Execution

Built-in DevTools

Built-in DevTools

Open Chrome or Safari DevTools inside your test sessions, no workarounds needed.

Screen Resolution

Screen Resolution

Change your PC's screen resolution during testing to check how your website responds to different screen sizes.

Tunnel for local Testing

Tunnel for local Testing

Test your local or staging environments without deploying publicly.

Network Throttling

Network Throttling

Simulate slow or fluctuating connections to see how your site behaves under real-world conditions 3G, 4G offline and more.

Geolocation Testing

Geolocation Testing

Test your website from different geoIPs to make sure your users get the perfect experience across all locations.

Debug UI on Real Devices

Debug UI on Real Devices

Debug UI on real devices to fix rendering issues, responsiveness glitches, and browser-specific bugs for accurate cross-browser testing.

...

2M+ Devs and QAs rely on TestMu AI

Deliver immersive digital experiences with Next-Generation Mobile Apps and Cross Browser Testing Cloud

Dashlane

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

Gartner’s Magic Quadrant 2025

Recognized in Gartner's Magic Quadrant 2025 as a Challenger for strong customer experience.

Forrester’s Autonomous Testing Platforms Q3 2025

Featured in Forrester's Autonomous Testing Platforms Landscape, Q3 2025 for innovation in AI-driven testing.

Wall 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

2.5M+

Tests

1.5B+

Enterprises

18K+

Countries

132

As Seen On

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