A logger for just about everything.
Recursively mkdir, like `mkdir -p`
elegant & feature rich browser / node HTTP with a fluent API
Terminal string styling done right
Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.
Streams3, a user-land copy of the stream library from Node.js
Parse, validate, manipulate, and display dates
a little globber