canjs/can-migrate

String helpers

fs-extra contains methods that aren't included in the vanilla Node.js fs package. Such as recursive mkdir, copy, and remove.

Node.js streams in the browser

Fix babel/babel#2212

Embedded JavaScript templates

beautifier.io for node

Static analysis tool for JavaScript

simple, flexible, fun test framework

Parses html and magic tags

Colorized string diff ideal for text/code that spans through multiple lines

A toolkit for JavaScript codemods

Given some data, jsesc returns the shortest possible stringified & ASCII-safe representation of that data.

Codemod scripts to transform code to next generation JS

Map over array avoiding parallel execution, using promises

A JSCodeshift extension with helpers for modifying `import` and `require` statements.