Protractor is described as 'end-to-end test framework for AngularJS applications. Protractor runs tests against your application running in a real browser, interacting with it as a user would' and is an app in the development category. There are seven alternatives to Protractor for a variety of platforms, including Mac, Windows, Linux, Online / Web-based and Self-Hosted solutions. The best alternative is Cypress.io, which is both free and Open Source. Other great apps like Protractor are Mocha, WebdriverIO, Jasmine and Karma.