Online APK Emulator for App Testing

Run and test APK files online across multiple Android versions in a browser-based emulator, or switch to 10,000+ real devices for full hardware accuracy.

Online APK Emulator for App Testing

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 and Test APKs on the Online APK Emulator and Real Devices

Interact with your app manually, run Appium and Espresso automation, and validate on real Android devices, all from your browser.

TestMu REAL DEVICE CLOUDREAL DEVICE CLOUD

Real Device Cloud for Your APK Runner

Emulators give a glimpse, but they fall short of real-world behavior. Run your APK on real devices for natural gestures, live interactions, and every edge case.

Start Testing Now
  • Real-world scenarios, from natural gestures to live interactions across every edge case.
  • 10,000+ real devices and 250+ configurations covering legacy and latest Android.
  • Run your full suite in parallel in the automation grid, cutting hours to minutes.

TestMu MANUAL + AUTOMATEDMANUAL + AUTOMATED

Online APK, Both Manual and Automated Workflows

Interact with your app manually, then run automation frameworks like Appium and Espresso against the emulator and real devices. Save time and improve app quality.

Run Your Online APK Testing

LambdaTest (now TestMu AI) elevated our mobile app testing with exceptional support, a user-friendly platform, and advanced reporting. Fast, executable, and perfect for us.

Snap One

Georgije Kundacina

Senior Software QA Engineer

Every Android Device. Any Version. One Cloud.

Run your APK across the full Android matrix, from day-zero flagships to legacy versions, without maintaining a device lab.

Quick App Upload

Drag, drop, and deploy – no waiting, no friction. Get your mobile apps on real devices faster than ever.

Install from App StoreInstall from App Store
Install from Play StoreInstall from Play Store
Install from FirebaseInstall from Firebase
Install from App StoreInstall from App Store

40+ Features On Your Fingertips

Test like your users do on real hardware. Authentic gestures including Tap, Swipe, and Zoom deliver true-to-life app experiences.

Install App
Rotate
Physical SIM
Gesture
Dark Mode
GPS
Dark Mode
Bluetooth
Network Throttling
Volume

Device Logs

Debug faster with instant device logs. Get real-time insights into crashes, errors, and performance issues directly from device sessions.

Crash Logs
Error Logs
Network Logs
Console Logs
System Logs
App Logs
Performance Logs
Memory Logs
Battery Logs
CPU Logs

GPS & IPS based Geolocation testing

Test from 170+ global locations for accurate localization, compliance, and regional user experience.

Intelligent UI Inspector

Inspect every element with intelligent precision. Identify UI components, properties, and hierarchies to accelerate debugging.

Intelligent UI InspectorIntelligent UI Inspector

Accessibility Testing

Build for everyone – automated accessibility testing built-in. Catch WCAG violations early and deliver inclusive experiences for all users.

Text element color contrast02
SeriousWCAG 2.2chevron-down

Text must contrast with the background: 4.5:1 for small text and 3:1 for large.

Text truncation01
CriticalWCAG 1.4.3chevron-down
Non Text element color contrast01
SeriousWCAG 1.4.3chevron-down
Readable text spacing04
MinorWCAG 1.4.3chevron-down

Why TestMu AI For Your APK Runner

Test Locally Hosted Apps

Test Locally Hosted Apps

Effortlessly test your mobile applications with TestMu AI tunnel for seamless performance across various devices.

Extensive Android versions

Extensive Android versions

Explore Android devices like Pixel, Oneplus, Galaxy with Android versions like Android 11, 10, Pie (9) and more.

Uploads Files

Uploads Files

Install multiple apps in one session and easily upload apk files and install directly from the Play Store.

Simplify Debugging

Simplify Debugging

Effortlessly debug your Android APK with detailed logs, crash reports, video recordings, and screenshots for each test.

Geolocation Testing

Geolocation Testing

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

Network Throttling

Network Throttling

Ensure seamless user experience by checking your mobile view application responsiveness on various network profiles.

Multi Device Testing

Multi Device Testing

Upload your app and test it on upto 6 devices at the same time on Real Device Cloud, supercharge you online APK testing.

Easy App Control

Easy App Control

Effortlessly manage application installation, termination, and uninstall applications within the Apk Emulator Online.

Device Control Features

Device Control Features

Easily manage volume, lock device, shake, on-screen keyboard, and rotate in the Apk Emulator Online.

Dedicated Real Device Cloud on TestMu AI

Public Real Device Cloud

Optimize app testing with our Public Real Device Cloud for seamless performance across all devices.

Private Real Device Cloud

Exclusive 24/7 access to dedicated iOS and Android devices for your team.

On-Premise Selenium Grid

Test at cloud scale, your data stays behind your firewall, always secure and compliant.

Public Real Device Cloud

AI-Agentic Quality Engineering

AI-native agents that plan, author, run, and analyze APK tests across the online emulator, 10,000+ real Android devices, and your CI pipeline.

KaneAI
Browser Testing
Real Device Cloud
Native App Automation
Web Automation
HyperExecute
Visual UI Testing

Plan, author, and evolve end-to-end tests using natural language.

More about KaneAI
KaneAI

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 with autonomous agents that plan, author, execute, analyze, and optimize tests.

Visit TestMu AI's New Home

The next era of the world's first fully Autonomous Agentic AI Quality Engineering Platform is here.

TestMu AI

Asad Khan

Co-Founder & CEO

LambdaTest's Next Chapter

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

Some Love from our Customers

As Best Egg expanded its product offerings and entered new markets, we knew our old testing infrastructure couldn’t keep up.
With support from Tenny Agustin, our Engineering Operations Lead, we modernized our approach with @testmuai see more >

TestMu AI

Best Egg

Best Egg

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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!see more >

KaneAI

Suryateja Goud

Suryateja Goud

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microsoft

See how @testmuai is #Futureready to enable blazing-fast test orchestration seamlessly integrated with organizations' existing CI/CD platforms, using #Microsoft Azure.

TestMu AI

Microsoft India

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See how TestMu AI speeds up your testing with AI-native authoring, faster execution, and deeper test insights across web, mobile, and AI applications.

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