Online Selenium Testing Tool
Reliable Automated Testing With Selenium Testing Tool Online Test On Cloud Grid Of 3000+ Browsers And Operating Systems.

Automate Browser Flows from your
Terminal with Kane CLI
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."
Pick Your Framework. We Handle the Rest.
Selenium Automation Testing Tool
Perform automated browser testing online & enhance your test automation coverage across 3000+ real desktop and mobile environments.
Get Started For FreeTest On Real Device Cloud
Get instant access to real Desktop and Mobile devices. Say No to Emulators and Simulators! Find bugs earlier by testing your websites and web apps on a wide range of real Android and iOS devices. Ensure a seamless user experience and timely delivery on every release.
Get Started For FreeSelenium Mobile Browser Automation
Automate your Selenium and Appium test scripts with Selenium testing tool and achieve faster go-to-market launch.
Get Started For FreeParallel Testing With Selenium Testing Tool
Leverage our cloud based testing tool for Selenium and trim down your test cycles by running Selenium test scripts in parallel.
Get Started For FreePerform Geolocation Testing With Selenium
Automate geolocation testing to test your website across 3000+ browsers from different locations across the globe.
Get Started For FreeBrowser Cloud - Scalable Browser Infrastructure for AI Agents
Give your AI agents a real browser to scrape, test, and automate at scale with stealth, session persistence, and geo-targeted proxies across 180+ locations.
Explore Browser CloudSuccess Stories of TestMu AI (Formerly LambdaTest)
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™
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
3M+
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










