QUnit is described as 'Powerful, easy-to-use, JavaScript test suite. It’s used by the jQuery project to test its code and plugins but is capable of testing any generic JavaScript code (and even capable of testing JavaScript code on the server-side)' and is a Unit Testing tool in the development category. There are nine alternatives to QUnit, not only websites but also apps for a variety of platforms, including Mac, Windows, Linux and Self-Hosted apps. The best QUnit alternative is Vitest, which is both free and Open Source. Other great sites and apps similar to QUnit are Mocha, Jasmine, Karma and Tree.js.