yargs the modern, pirate-themed, successor to optimist.

JavaScript/TypeScript linter (ESLint wrapper) with great defaults

parse argument options

the complete solution for node.js command-line programs

Quickly scan for CLI flags and arguments

Smooth (CLI) operator 🎶

JavaScript parser and stringifier for YAML

A light, featureful and explicit option parsing library.

create CLI tools with subcommands

ES2015 Promise ponyfill

Node.js compression middleware

Make unhandled promise rejections fail loudly instead of the default silent fail

Check TypeScript type definitions

Lightweight debugging utility for Node.js and the browser

Fast, unopinionated, minimalist web framework

Get stdin as a string or buffer

Human-friendly and powerful HTTP request library for Node.js

A clean, whitespace-sensitive template language for writing HTML

Option parsing for Node, supporting types, shorthands, etc. Used by npm.