Selenium vs Wallaby.js: What are the differences?
Developers describe Selenium as "Web Browser Automation". Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testing purposes, but is certainly not limited to just that. Boring web-based administration tasks can (and should!) also be automated as well. On the other hand, Wallaby.js is detailed as "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.
Selenium and Wallaby.js can be primarily classified as "Browser Testing" tools.
Selenium is an open source tool with 15.2K GitHub stars and 5.03K GitHub forks. Here's a link to Selenium's open source repository on GitHub.
According to the StackShare community, Selenium has a broader approval, being mentioned in 1046 company stacks & 2546 developers stacks; compared to Wallaby.js, which is listed in 3 company stacks and 3 developer stacks.