Perform localhost testing of your locally hosted website or web application across 3000+ browsers and device combinations.
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Test Websites with Private Certificate
UnderPass supports MITM for sites with self-signed certificates, allowing testing of locally or privately hosted websites within your system or internal network.
Try Now →LocalHost Testing Behind Proxy
Execute Localhost testing for sites behind proxies by specifying PROXY HOST, PORT, USER, and PASSWORD for remote servers, office networks, or local machines.
Try Now →Detailed Verbose Logs
Facing an issue with the tunnel launch in UnderPass? Turn on Verbose mode to obtain comprehensive LambdaTest Tunnel logs for seamless troubleshooting.
Try Now →Test Using Shared Tunnel
Eliminate the hassle of creating individual instances for each user in a project. Set up a shared tunnel for the team, allowing users to initiate it with a single click via UnderPass.
Try Now →Select Connection Modes
UnderPass automatically selects the optimal connection mode for top testing speeds. It adjusts based on network conditions, ensuring the fastest transfers and an enhanced testing experience.
Try Now →Easy Access To Local Directory
Easily adjust the local file path from the UnderPass app with a simple click, offering a more efficient and user-friendly experience.
Try Now →Trusted by startups, SMBs and big enterprises alike.
By being able to run our Selenium scripts on the legacy and latest browsers on LambdaTest helped us save significant time in test execution with zero hassle to maintain the infra.
Anish Ohri
Head of Testing and Performance Engineering
By using LambdaTest, the team was able to execute up to 200 tests concurrently through parallel testing. Test suites that used to take 60 minutes now take not more than 5 minutes.
Lovleen Bhatia
Co-Founder & CEO
Using LambdaTest cross browser automation on the cloud has allowed Emburse to reduce test execution time up to 20% and achieve better code quality.
Alan Harwood
Senior Manager, Engineering
LambdaTest has reduced the time taken to reproduce and debug the problem. It has helped us identify browser specific problems and increase developer feedback time by 400% and increase efficiency by 100%.
David Seel
Team Lead (Software Engineering)
With LambdaTest, we were able to increase our test coverage by 70% and reduced our test execution time from average 1 minute per test to 20 seconds, a 66% reduction in test execution time.
Matt Rench
Principal Automation Engineer
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