JSPM

The jsbn library is a fast, portable implementation of large-number math in pure JavaScript, enabling public-key crypto and other applications on desktop and mobile browsers.

utility box for ECMAScript language tools

Detect whether or not an object is a Typed Array

Base64 encoding/decoding in pure JS

Make your own error types!

Read/write IEEE754 floating point numbers from/to a Buffer or array-like object

Wrap those words. Show them at what columns to start and stop.

The string_decoder module from Node core

Determine if an object is a Buffer

Implementation of JSON Web Signatures

Require module from string

Safer Node.js Buffer API

Node.js Buffer API, for the browser

get colors in your node.js console

Full featured Promises/A+ implementation with exceptionally good performance

Fast deep equal

JSDoc parser

Unpipe a stream from all destinations

Resolve the path of a module like `require.resolve()` but from a given path

Basic cache object for storing key-value pairs.

Hand-written ICU MessageFormat parser with compatible output as [`intl-messageformat-parser`](https://www.npmjs.com/package/intl-messageformat-parser) but 6 - 10 times as fast.

ES2015 `Object.assign()` ponyfill

Get the native type of a value.

two functions: One that returns true, one that returns false

OAuth 1 signing. Formerly a vendor lib in mikeal/request, now a standalone module.

Efficient implementation of Levenshtein algorithm with locale-specific collator support.

the stream module from node core for browsers

Convert encodings, uses iconv-lite

HTTP response freshness testing

Escape string for use in HTML

Environment agnostic nextTick polyfill

A cache for managing namespaced sub-caches

Iterator abstraction based on ES6 specification

Create simple HTTP ETags

Check whether a string is a URL.

Utilities to help expose prettier output in linting tools

writable stream that concatenates strings or binary data and calls a callback with the result

Modern Buffer API polyfill without footguns

Full zlib module for the browser

Mirror of mkdirp 0.5.2

timers module for browserify

HTTP methods that node supports

Recursively iterates over specified directory, require()'ing each file, and returning a nested hash structure containing those modules.

Treat a collection of Buffers as a single contiguous partially mutable Buffer.

Define a non-enumerable property on an object. Uses Reflect.defineProperty when available, otherwise Object.defineProperty.

getpass for node.js

Minimal async jobs utility library, with streams support

Generates a base64 id

Returns true if the value is an object and not an array or null.

Simple RFC 6838 media type parser and formatter

Generic extension manager for WebSocket connections

Growl unobtrusive notifications

Fast and simple xml generator. Supports attributes, CDATA, etc. Includes tests and examples.

Returns true if a value is a plain object, array or function.

Manipulate the HTTP Vary header

Operating system specific paths.

js function for hashing messages with MD5

Returns true if a value exists, false if empty. Works with deeply nested values using object paths.

Node.JS path module

QRCodes, in the terminal

parse a url with memoization

return the first event in a set of ee/event pairs

Babel plugin to transpile import() to a deferred require(), for node

process information for node.js and browsers

Repeat the given string n times. Fastest implementation for repeating a string.

Converter from any base to other any base

Creates a shallow clone of any JavaScript value.

Check if a value is a natural number

quote and unquote strings. escapes internal quotes and slashes. Automatically decides whether to use single or double quotes.

Wrap Streams2 instance into a HandleWrap

This is lightweight memory stream module for node.js.

is that thing a function? Use this module to find out

JavaScript implementation of the BSER Binary Serialization

Convert a typed array to a Buffer without a copy

An XML builder for node.js

returns nonce

Pluralize and singularize any word

Port of the OpenBSD bcrypt_pbkdf function to pure JS

Postgres bytea parser

node.js basic auth parser

Edit a string with the users preferred text editor using $VISUAL or $ENVIRONMENT

Querystringify - Small, simple but powerful query string parser.

Babel Types is a Lodash-esque utility library for AST nodes

[](https://travis-ci.org/hunterloftis/stoppable)

Copy static properties, prototype properties, and descriptors from one object to another.

Utils for working with JavaScript classes and prototype methods.

Port of TweetNaCl cryptographic library to JavaScript

Toggle current selected content in browser

Returns true if the platform is windows. UMD module, works with node.js, commonjs, browser, AMD, electron, etc.

prelude.ls is a functionally oriented utility library. It is powerful and flexible. Almost all of its functions are curried. It is written in, and is the recommended base library for, LiveScript.

Compressible Content-Type / mime checking

The map of HTTP status codes from the builtin http module

compose Koa middleware

A JavaScript parser

Serve directory listings

Extend an object with the properties of additional objects. node.js/javascript util.

A highly configurable, middleware compatible implementation of CORS.

a collection of useful streams

asynchronous file and directory operations for Node.js

`process.stdout` in your browser.

Check that two PostCSS nodes share the same parent.

Range header field string parser

WebSocket protocol handler with pluggable I/O

Detect if your code is running on an AWS Lambda server

For encoding to/from base64urls

Isomorphic WHATWG Fetch API, for Node & Browserify

HTTP proxying for the masses

printf, sprintf, and vsprintf for JavaScript

Parse a passwd file into a list of users.

API for combining call site modifiers

Promisify a callback-based function

Utilities for the snapdragon parser/compiler.

A lightweight library that provides tools for organizing asynchronous code

A flow control lib small enough to fit on in a slide presentation. Derived live at Oak.JS

Node.js CORS middleware

Takes JavaScript code, along with a config and returns the original code with tokens wrapped as configured.

A mirror of Facebook's Warning

Generate a hex color from the given text

a fast, efficient buffer writer

Get the command from a shebang

Join paths and globs.

ECMAScript6 WeakMap polyfill

qjobs is a simple and stupid queue job manager for nodejs

For adding, subtracting, and indexing discontinuous ranges of numbers

Allow parsing of jsx

Node's querystring module for all engines. (ES3 compat fork)

JSON.parse with context information on error

Retries a function that returns a promise, leveraging the power of the retry module.

HTTP proxy tunneling agent. Formerly part of mikeal/request, now a standalone module.

npm package for https://github.com/google/diff-match-patch

Command-Option-Argument: Yet another parser for command line options.

JSON Schema for HTTP Archive (HAR)

Deprecate all the things

Safely get a dot-notated property within an object.

A simple MD4 hash function for JavaScript supports UTF-8 encoding.

the tty module from node core for browsers

minimalistic-assert ===

Coalesce for JavaScript. Returns the first value that is not undefined or null.

Helper function to hoist variables

A polyfill for the Resize Observer API

Normalize slashes in a file path to be posix/unix-like forward slashes. Also condenses repeat slashes to a single slash and removes and trailing slashes, unless disabled.

Object.fromEntries() ponyfill (in 6 lines)

Additional ESLint rules for ESLint directive comments.

XMLHttpRequest for Node

Environment agnostic event emitter

Helper function to define a map

Helper function to call delegate

Minify URLs by converting them from absolute to relative.

Require constants across node and the browser

Buffers events from a stream until you are ready to handle them.

Helper function to replace supers

Super-minimalist version of `concat-stream`. Less than 15 lines!

Deprecated. Utilities for ES3, most of which have been adopted or superseded in ES5.1. Adapted from Douglas Crockford's Remedial JavaScript

Recursively flatten an array or arrays.

Plugin for loglevel message prefixing

Manages the raw value formatting for generated AST nodes.

Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.

Detects if a file exists and returns the resolved filepath.

Resolve the path of a module like `require.resolve()` but from the current working directory

A stream that emits multiple other streams one after another.

Blazing fast unique hash generator

The lodash method `_.memoize` exported as a module.

Merge multiple streams into one stream in sequence or parallel.

List of known file extensions and their MIME types

Various hash functions that could be run by both browser and node

Helper function to optimise call expression

ECMAScript reserved words checker

Assign the enumerable es6 Symbol properties from one or more objects to the first object passed on the arguments. Can be used as a supplement to other extend, assign or merge methods as a polyfill for the Symbols part of the es6 Object.assign method.

URI validation functions

Easily add plugin support to your node.js application.

ESLint plugin about ECMAScript syntactic features.

A transform to make UglifyJS work in browserify.

Warning and invariant dev-ex messaging.

Returns a filtered copy of an object with only the specified keys, similar to `_.pick` from lodash / underscore.

Object utils.

Compile ES2015 destructuring to ES5

Zero cost events

resolve which handles browser field support in package.json

Complete list of standard emojis.

Compare strings containing a mix of letters and numbers in the way a human being would in sort order.

The lodash method `_.once` exported as a module.

Remove wrapping quotes from a string.

The lodash method `_.isString` exported as a module.

Apply ES2015 function.name semantics to all functions

Map `visit` over an array of objects.

CSS parser

AWS signing. Originally pulled from LearnBoost/knox, maintained as vendor in request, now a standalone module.

Compile ES2015 sticky regex to an ES5 RegExp constructor

Generate a slug – transliteration with a lot of options

Fast (and loose) selective `process.env` replacer using js-tokens instead of an AST

Write minimal node index.js files that require and export siblings by file basename

Automatically add displayName to all your components

Custom errors

removes trailing slashes

Bit twiddling hacks for JavaScript

The lodash method `_.uniq` exported as a module.

Require global variables

Helper function to build binary assignment operator visitors

Strip line and/or block comments from a string. Blazing fast, and works with JavaScript, Sass, CSS, Less.js, and a number of other languages.

The lodash method `_.isBoolean` exported as a module.

Lightweight library for composing asynchronous and event-based operations in JavaScript

babel selfContained runtime

Javascript Redis protocol (RESP) parser

Rational approximation with bounded denominator

The lodash method `_.isPlainObject` exported as a module.

Port of jQuery.extend for node.js and the browser

Like an array, but rounder.

Time duration utilities

Microsoft sucks

Library to walk OAS 3 schema objects and call a callback

Temporary files and directories

Test whether an object looks like a promises-a+ promise

Helper function to check for literal RegEx

Format and manipulate numbers.

HTTP Agent that keeps socket connections alive between keep-alive requests. Formerly part of mikeal/request, now a standalone module.

Caseless object set/get/has, very useful when working with HTTP headers.

Allow parsing of object rest/spread

Local username and password authentication strategy for Passport.

Helper function to get function arity

ECMAScript 2015 (ES6) Object.assign polyfill and ponyfill

Awesome Media Queries in JavaScript

The lodash method `_.debounce` exported as a module.

LRU Queue

Convert a file: URI to a file path

Write buffer

Safely clone node's fs.Stats instances without losing their class methods

a pure-JavaScript Node.JS module for random-access decoding bzip2 data

Higher-order functions for easier error handling

Build chainable fluent interfaces the easy way... with a freakin' chainsaw!

invariant

merge() utility function

Algorithm for finding the root of a yarn workspace, extracted from yarnpkg.com

Unsigned integers for Javascript

Utility package to determine if an `Array.prototype` method properly boxes the callback's receiver and third argument.

Random number generator for browsers and node.js

A small api to read and write your requirejs config file

Returns true if a string has an extglob.

Recursively (deep) clone JavaScript native types, like Object, Array, RegExp, Date as well as primitives.

Colors of Google's Material Design made available to coders

A tiny (less than 1k) event emitter library

An elegant way to define lightweight protocols on-top of TCP/TLS sockets in node.js

CLS using AsynWrap instead of async-listener - Node >= 4.7.0

Helper module for loading your native module's .node file

Javascript function that triggers browser to save javascript-generated content to a file

For a given Buffer or Stream, this module will attempt to determine the total length of the stream contents. It currently supports Buffers, `fs` streams, `http` responses, and `request` objects, and allows for specifying custom stream types.

Convert efficiently index to/from line-column in a string

Fastest stable deterministic JSON.stringify()

Code for processing filters in pug templates

Compile ES2015 default and rest parameters to ES5

Native JS murmur hash implementation