Test on Real macOS Machines, Instantly
Test your website on real macOS machines, with no simulators or virtual environments. Access 3,000+ browsers and know exactly how your site behaves on macOS before your users do.
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."
Complete macOS Testing Coverage
Live browser testing, automated runs, and ready-to-test environments on real macOS machines over the cloud, no VMs or hardware.
No Hardware or VM Setup
Real macOS Testing, Without the Overhead
Run tests on real macOS machines instantly without maintaining VMs, managing device labs, or installing additional software. Access latest macOS versions directly from your browser with a reliable cloud-based testing environment.
Try Virtual macOS Free
Test on real macOS machines
Live Browser Testing on Real macOS
Test your website across Safari, Chrome, Firefox, Edge, and Opera on macOS platforms. Use real macOS online to check compatibility across legacy and latest browser versions.
Start Free macOS Testing- Reproduce a Safari bug on the exact macOS version it was reported on.
- Verify a CSS or JavaScript fix on macOS Safari. No hardware provisioning needed.
- Walk pre-release flows on latest macOS versions before each signoff.
Scale with Automation
Automated Browser Testing on Real macOS
Run your automation scripts on a macOS online device, supporting frameworks like Selenium, Cypress, Playwright, Puppeteer, TestCafe, and more.
What's covered out of the box
Validate Builds Across Any Environment
Test Across Development Environments
Access staging, QA, and internal environments instantly to validate features before production without managing complex network or browser setup.
Try Real macOS Free
LambdaTest (now TestMu AI) elevated our mobile app testing with exceptional support, user-friendly platform, and advanced reporting. 50% faster test execution time in iOS.
Georgije Kundacina,
Senior Software QA Engineer, Snap One
Every Capability Real macOS Testing Needs
Test Across Different Network Configs
Test across 4G, 5G, and custom network profiles to ensure your website or app works as intended.
DevTools Debugging on Real macOS Browsers
Capture JS errors, network waterfalls, console output, and render timing. Debug Safari-specific WebKit issues without owning a Mac.
IP Based Geolocation Testing
Test from 170+ global locations for accurate localization, compliance, and regional UX on virtual macOS.
Session Capture & Bug Reporting
Record sessions, capture annotated screenshots, and push bugs to Jira, GitHub, Slack, or Azure DevOps from your macOS test session.
Test Locally Hosted Sites on macOS
Test privately hosted or locally staged pages on real macOS via LT Tunnel (Underpass), encrypted, sub-second, no VPN or firewall changes.
WCAG Accessibility Testing on macOS
Audit color contrast on Retina displays, validate VoiceOver behavior, and test keyboard navigation for native macOS users.
Text must contrast with background: 4.5:1 for small text and 3:1 for large text on Retina displays.
Works with Every Browser Automation Framework
Why Teams Choose TestMu AI for Real macOS Testing
Zero Setup, Any OS
Access macOS in your browser from Windows, Linux, or any OS. No Apple hardware, no VM software, no IT tickets.
Native Safari WebKit
Real macOS instances deliver native Safari rendering, not emulation. Results match exactly what your users see.
3,000+ Browser-OS Combos
Safari, Chrome, Firefox, Edge, and Opera across macOS Sequoia through Big Sur. One platform covers every combination.
CI/CD Ready from Day One
Selenium, Playwright, Cypress, and Puppeteer automation with native CI hooks. Run parallel macOS test suites on every commit.
AI-Agentic Quality Engineering
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.
Success 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
Some Love from our Customers
Excited to Share My Learning Journey with Kane AI & Lambda Tool!
I'm pleased to announce that I've recently gained hands-on experience exploring Kane AI through the Lambda Tool and it’s been a fantastic journey of upskilling!
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Attended an onboarding call for KaneAI by TestMu AI.
KaneAI is the world's first end-to-end software testing agent.
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I just discovered KaneAI by TestMu AI, and it's a game-changer! Let me walk you through how it's transforming my testing workflow
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More Reasons to LoveTestMu AI (formerly LambdaTest)
See how TestMu AI speeds up your testing with AI-native authoring, faster execution, and deeper test insights across web, mobile, and AI applications.
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
LambdaTest is now TestMu AI
On January 12, 2026, LambdaTest evolved into TestMu AI, the same trusted testing cloud, upgraded for the AI era.
Now a full-stack agentic AI quality engineering cloud, it automates end-to-end testing across web, mobile, and AI apps. The platform is AI-native, with autonomous agents that plan, author, execute, analyze, and optimize tests.
The next era of the world's first fully Autonomous Agentic AI Quality Engineering Platform is here.
Asad Khan
Co-Founder & CEO
Frequently asked questions
- Go to Real Time Testing in the dashboard.
- Select macOS from the OS dropdown and choose your target version (Sequoia, Sonoma, Ventura, Monterey, or Big Sur).
- Pick a browser: Safari, Chrome, Firefox, Edge, or Opera.
- Enter your URL and click Start. The virtual macOS session launches in under 10 seconds.
- macOS 15 Sequoia: Safari 18 (released September 2024)
- macOS 14 Sonoma: Safari 17 (released September 2023)
- macOS 13 Ventura: Safari 16 (released October 2022)
- macOS 12 Monterey: Safari 15 (released October 2021)
- macOS 11 Big Sur: Safari 14 (released November 2020)
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