Browserbite vs Wallaby.js: What are the differences?

Browserbite: Automatic cross browser layout testing. Browserbite looks at the screenshots for you using complex computer vision and machine learning techniques and finds the problems for you; Wallaby.js: Intelligent test runner for JavaScript with real-time code coverage and deep editor integration. It is an intelligent test runner for JavaScript that continuously runs your tests. It reports code coverage and other results directly to your code editor immediately as you change your code. Wallaby.js uses various tricks to run your tests as fast as possible, such as dependency analysis to only execute tests affected by your code changes and parallel test execution. It provides a huge productivity boost whether you are doing TDD/BDD or using any other approach.

Browserbite and Wallaby.js can be categorized as "Browser Testing" tools.