Keep your library size in check
Monitor your bundle size
Monitor bundle sizes and analyze bundle contents

Analyze the size and contents of your Ember app's bundles
Lightweight debugging utility for Node.js and the browser
Lodash modular utilities.
React is a JavaScript library for building user interfaces.
A querystring parser that supports nesting and arrays, with a depth limit
Higher-order functions and common patterns for asynchronous code
Babel compiler core.