8 best Go UI Testing libraries in 2025

Go is one of the most widely used languages in the world, powering everything from websites and web applications to enterprise software and mobile apps. As such, it's very important that you have a way to ensure that your code works as intended. User interface testing is a methodology that is used on an application's user interface to ensure that it can correctly respond to certain actions, like clicking buttons or filling out forms. This Go UI Testing Open Source libraries then this list will show you how to get started with some of the most popular ones out there today fortio - Fortio load testing library, command line tool; mmock - HTTP mocking application for testing and fast prototyping; go-glint - Componentbased UIframework for commandline tools.