enmasseio/actors

An AMQP 0-9-1 (e.g., RabbitMQ) library and client.

Higher-order functions and common patterns for asynchronous code

Dynamic communication flows between message based actors.

Bare bones Promises/A+ implementation

Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js

simple, flexible, fun test framework

Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

A distributed message bus for node.js and the browser

Time control for simulations

Publish & Subscribe Real-time Messaging with PubNub

Generate random numbers with a seed, useful for reproducible tests

Find a free port.