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TestMu AI Updates

Live With the All-New TestMu AI UnderPass Desktop Application

Learn about TestMu AI Tunnel's latest enhancements for simpler SSH connections and web app testing.

Author

Devansh Bhardwaj

January 29, 2026

Setting up a Secure Shell (SSH) connection and preparing a local development environment for testing your website can be challenging. To simplify this process, we have revamped our TestMu AI UnderPass Tunnel desktop application with some out-of-box features for local testing. This application establishes an SSH (secure shell) connection between your computer and our cloud servers. It allows you to test web applications hosted locally or privately across various browsers before they go live.

We’ve continuously collected user feedback to improve TestMu AI UnderPass Tunnel. We are thrilled to share that the latest version of the TestMu AI Tunnel application is now available, packed with new and enhanced features!

Let’s dive in!

Before jumping onto the latest features, let us recap and understand TestMu AI UnderPass Tunnel.

What is the TestMu AI UnderPass Desktop Application?

TestMu AI UnderPass Tunnel allows you to test web applications hosted on your local server on 3000+ browsers on both mobile and desktop platforms.

This is done without executing any commands from your terminal. It’s a desktop application that sets up a Secure Shell (SSH) tunnel between your operating system and our cloud servers using a graphical user interface (GUI), making the process straightforward and user-friendly.

Now, let’s look at our new features for TestMu AI UnderPass.

Multiple Tunnel Management

With the all-new TestMu AI Tunnel desktop application, users can launch and manage several tunnels simultaneously, enhancing the efficiency of testing processes. This update allows users to perform tests across various environments simultaneously. This capability is particularly beneficial for those who need to test web applications in different settings or on multiple versions of browsers and operating systems at the same time.

underpass

Note: Check out our detailed UnderPass Tunnel support documentation to know more.

Access to Advanced Configurations

With advanced tunneling options for users who need customized setups, these configurations are designed to meet basic and complex requirements, ensuring a versatile and effective testing environment for all situations. Before starting the UnderPass tunnel application, you can set up detailed configurations like proxy information, an environment label, an info API port, a local server port, and more. This allows for a more tailored testing experience that fits your specific needs.

Access to Advanced Configurations

Streamlined Log Sharing

To simplify the debugging process, the all-new TestMu AI UnderPass desktop application comes with an easy-to-use log copying mechanism. This allows users to quickly share and analyze logs, enhancing collaboration and speeding up issue resolution. You can find messages populated through the command line by clicking the Logs button.

Streamlined Log Sharing

Note: Download the TestMu AI UnderPass Tunnel Desktop Application as per your preferred OS:

Enhanced Login Flexibility

Accessing the TestMu AI UnderPass Tunnel is now extremely easy. With its various authentication methods for your convenience, you can now use the usual email-password method or choose to log in through Google, GitHub, or Single Sign-On (SSO), ensuring a seamless and secure experience.

Enhanced Login Flexibility

Revamped User Interface (UI)

Experience smoother navigations and efficient tunneling operations with the all-new intuitive user interface of the TestMu AI UnderPass Tunnel desktop application.

Revamped User Interface (UI)

Bonus Features

Here are a few more features that make the TestMu AI UnderPass Tunnel desktop application your ideal choice for testing locally hosted web pages:

  • Eliminate the need to launch the tunnel through CLI with instant TestMu AI tunnel activation.
  • Test websites with support for MITM for sites with self-signed certificates.
  • Conduct testing on localhost for websites behind proxies by setting up the PROXY HOST, PORT, USER, and PASSWORD.
  • Simplify project setup for the team and test using a shared tunnel.

All In All!

The TestMu AI UnderPass Tunnel desktop application has significantly streamlined setting up an SSH connection and testing web applications on local servers. With its array of new and improved features, the latest version offers an even more user-friendly and efficient experience.

Whether managing multiple tunnels, accessing advanced configurations, sharing logs easily, or enjoying enhanced login flexibility, TestMu AI Tunnel caters to fundamental and complex testing needs. We hope this new update will greatly benefit you while maximizing your productivity.

Try the UnderPass Tunnel and share your thoughts on the TestMu AI Community. You can also contact us via our chat portal or at [email protected].

Happy Testing! 😀

Author

Devansh Bhardwaj is a Community Evangelist at TestMu AI with 4+ years of experience in the tech industry. He has authored 30+ technical blogs on web development and automation testing and holds certifications in Automation Testing, KaneAI, Selenium, Appium, Playwright, and Cypress. Devansh has contributed to end-to-end testing of a major banking application, spanning UI, API, mobile, visual, and cross-browser testing, demonstrating hands-on expertise across modern testing workflows.

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