Selenium Grid Online for Test Automation

Run parallel Selenium tests on 3000+ real browsers and devices. No setup, no maintenance.

Selenium Grid Online for Test Automation
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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

Run, Scale, and Debug Selenium Tests on Cloud

TestMu Cloud Selenium GridCloud Selenium Grid

Selenium Grid on Cloud with Real Browser-OS Combinations

Pick the exact browser and OS your users have. No virtual machines, no emulators.

Get Started For Free
  • 3000+ real browser-OS combinations available on demand.
  • Day-zero support for new browser releases, plus legacy versions.
  • Skip the cost of running your own browser infrastructure.

TestMu Parallel Test ExecutionParallel Test Execution

Run Hundreds of Selenium Tests in Parallel

Cut suite execution time from hours to minutes by running tests across hundreds of browser-OS combinations simultaneously.

Get Started For Free
  • Run as many concurrent sessions as your plan supports.
  • Tests auto-distribute across available nodes, no manual splitting required.
  • Failed tests retry on fresh nodes without breaking the full run.

TestMu RICH TEST LOGSRICH TEST LOGS

Debug Selenium Failures from the First Run

Every failed test comes with full logs, video, and screenshots. Open the session and see exactly what broke.

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What is captured in every test session?

Video Logs
Visual Logs
Command Logs
Selenium Logs
Network Logs
Console Logs
Telemetry Logs

TestMu COMPLIANCE READYCOMPLIANCE READY

Run Selenium Tests Without Compromising Security

Run Selenium tests on a secure, compliant cloud Grid. SOC 2 Type II, GDPR, and CCPA certified.

Get Started For Free
  • Test data encrypted at rest and in transit.
  • Browser sessions are wiped clean after every test, so nothing carries over.
  • On-premise deployment available for teams that can't use cloud.

TestMu INFRA FOR AI AGENTSINFRA FOR AI AGENTS

Scalable Browser Infrastructure for AI Agents

Connect your AI agents to a real browser with stealth, session persistence, and proxies across 180+ locations.

Explore Browser Cloud
  • Works with Selenium, Playwright, and Puppeteer - no SDK changes needed.
  • Geo-targeted proxies across 180+ locations so every request looks local.
  • Session persistence and auth carry across runs, no re-login, no lost context.

AI-Agentic Quality Engineering

Agent-to-Agent
KaneAI
Browser Testing
Real Device Cloud
App Automation
HyperExecute
Visual UI Testing
Accessibility Testing

Agent-to-Agent Testing

Test AI agents such as chatbots, voice assistants and more.

More about Agent-to-Agent Testing
Agent-to-Agent

Autonomous Testing

Detailed agent analysis under test, from the perspective of a synthetic end-user.

Multi-Persona Simulation

Diverse user personas like International Caller, Digital Novice and more.

Risk Scoring & Regression

End to end regression testing for agent under test with insights.

Selenium Testing Built Into Your Workflow

Full Browser Coverage, Desktop and Mobile

Full Browser Coverage, Desktop and Mobile

Run tests on real browser and OS combinations across desktop and mobile without any local setup.

Supports all languages & frameworks

Supports all languages & frameworks

Supports all major programming languages and test frameworks without additional configuration.

Seamless CI/CD Integrations

Seamless CI/CD Integrations

Connects to popular CI/CD tools and DevOps pipelines without extra configuration.

Enterprise-ready Tunnel for local testing

Enterprise-ready Tunnel for local testing

Test locally hosted and privately hosted pages securely using an enterprise-ready tunnel.

Built-in IP Geolocation Testing

Built-in IP Geolocation Testing

Verify region-specific content and behavior from 150+ country locations without a VPN.

Detailed analytics and reporting of test runs

Detailed analytics and reporting of test runs

Track failure trends, detect flaky tests, and export test reports from one analytics dashboard.

Success Stories of TestMu AI (Formerly LambdaTest)

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 (Formerly LambdaTest)

TestMu AI Named a Challenger in the 2025 Gartner® Magic Quadrant™

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TestMu AI recognized in The Forrester Wave™: Autonomous Testing Platforms, Q4 2025

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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

3M+

Tests

1.5B+

Enterprises

18K+

Countries

132

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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