Nightwatch
UI automated testing framework based on node.js and selenium webdriver
Intern
A next-generation code testing stack for JavaScript.
Galen
Layout and functional testing framework for websites
Mocha
A simple, flexible, fun javascript test framework for node.js & the browser. (BDD, TDD, QUnit styles via interfaces)
Cypress
Fast, easy and reliable testing for anything that runs in a browser.
Hashgrid
A little tool that inserts a layout grid in web pages, allows you to hold it in place, and toggle between displaying it in the foreground or background.
Type Script
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
Nock
HTTP mocking and expectations library
Fast Check
Property based testing framework for JavaScript (like QuickCheck) written in TypeScript
Faker.js
generate massive amounts of fake data in Node.js and the browser