tracing-framework : Rich tools for instrumenting, analyzing, and visualizing web apps.
ESLint : The pluggable linting utility for JavaScript and JSX
monday : Your new microservice development environment friend. This CLI tool allows you to define a configuration to work with both local applications (Go, Nod...
Online javascript beautifier : Beautify, unpack or deobfuscate JavaScript and HTML, make JSON/JSONP readable, etc.
Babel : Babel will turn your ES6+ code into ES5 friendly code, so you can start using it right now without waiting for browser support.
Grunt is a task-based command line build tool for JavaScript projects