nmmes/nmmes-module-encoder

Full featured Promises/A+ implementation with exceptionally good performance

check whether a command line command exists in the current environment

Gracefully cleanup when termination signals are sent to your process.

JavaScript library to generate a human readable String describing the file size

A fluent API to FFMPEG (http://www.ffmpeg.org)

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

Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with different data types like numbers, big numbers, complex numbers, fractions, units, and matrices.

Parse, validate, manipulate, and display dates

The fastest javascript implementation of a double-ended queue. Used by the official Redis, MongoDB, MariaDB & MySQL libraries for Node.js and many other libraries. Maintains compatability with deque.

A moment.js plugin for formatting durations.

A modular video encoder/transcoder.