Neo-Async is a drop-in replacement for Async, it almost fully covers its functionality and runs faster

Apply an async function to each Array element in series.

No-bullshit, ultra-simple, 35-lines-of-code async parallel forEach / map function for JavaScript.

Full featured Promises/A+ implementation with exceptionally good performance

Bare bones Promises/A+ implementation

Async concurrent iterator (async forEach)

horsepower for your modules

Run an array of functions in parallel

Lodash modular utilities.

Run an array of functions in series

Bare minimum async methods

simple, flexible, fun test framework

Offers a async require.resolve function. It's highly configurable.

Asynchronously map over a list

An AST-based pattern checker for JavaScript.