Headless Chrome Node.js API
Visual diffing in CI for user interfaces
Super-agent driven library for testing node.js HTTP servers
A Node.js tool to automate end-to-end web testing
CLI tool for ensuring that a given script runs continuously
Marathon supports testing of Java/Swing and Java/Fx applications.
Test & requirements management
Extremly naughty chaos monkey for Node.js
React + Redux starter kit and boilerplate with Babel
Simple and powerful tool for benchmarking your code's efficiency
High quality fast "true random" number generator (shuffling) for JS
a selenium framework