Sinon.js
Test spies, stubs and mocks for JavaScript.
Should.js
BDD style assertions for node.js -- test framework agnostic
Headstart
An automated front-end setup
Broccoli
Browser compilation library – a build tool for applications that run in the browser
Shipit
Universal automation and deployment tool written in JavaScript.
Testcafe
A Node.js tool to automate end-to-end web testing.
Ampersand
Quickest way to get started with ampersand.
Gremlins.js
Monkey testing library for web apps and Node.js
Ag Grid
The best JavaScript Data Table for building Enterprise Applications. Supports React / Angular / Vue / Plain JavaScript.
Faker.js
generate massive amounts of fake data in Node.js and the browser