Mocha is described as 'Feature-rich JavaScript test framework running on node.js and the browser, making asynchronous testing simple and fun. Mocha tests run serially, allowing for flexible and accurate reporting, while mapping uncaught exceptions to the correct test cases' and is a Test Framework tool in the development category. There are more than 10 alternatives to Mocha for a variety of platforms, including Mac, Windows, Linux, Self-Hosted and Web-based apps. The best Mocha alternative is Vitest, which is both free and Open Source. Other great apps like Mocha are Jest, Jasmine, AVA and Karma.