AsynquenceAsynchronous flow control (promises, generators, observables, CSP, etc)
ambiAmbi lets you execute any function ambidextrously; providing you the ability to execute any function (be it synchronous, asynchronous, returns, callbacks, promises) as if it returned a promise.
cond-flowElixir style cond for easy javascript control flow
lightflowA tiny Promise-inspired control flow library for browser and Node.js.
flowsRuby framework for your Business Logic Layer
co demoA step-by-step guide about how to avoid callback hell with ES6 Promises + generators (aka make your own "co")
encyEnhanced concurrency primitives for Javascript.
parleyFlow control harness for implementors. Builds a Deferred object that supports async/await, promise chaining, and conventional Node callbacks.