btoa for Node.JS (it's a one-liner)
Useful utilities for working with Uint8Array (and Buffer)
A robust base64 encoder/decoder that is fully compatible with atob() and btoa(), written in JavaScript.
atob()
btoa()
Smallest/simplest possible means of using btoa with both Node and browserify
isomorphic base64 library in 152 bytes
Lightweight debugging utility for Node.js and the browser
Lodash modular utilities.
A querystring parser that supports nesting and arrays, with a depth limit
Higher-order functions and common patterns for asynchronous code
React is a JavaScript library for building user interfaces.
Babel compiler core.