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!

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

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

Determine if an object is a Buffer

The string_decoder module from Node core

Implementation of JSON Web Signatures

Require module from string

Safer Node.js Buffer API

get colors in your node.js console

Node.js Buffer API, for the browser

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

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.

Basic cache object for storing key-value pairs.

Get the native type of a value.

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

ES2015 `Object.assign()` ponyfill

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

Environment agnostic nextTick polyfill

HTTP response freshness testing

Escape string for use in HTML

A cache for managing namespaced sub-caches

Iterator abstraction based on ES6 specification

Check whether a string is a URL.

Create simple HTTP ETags

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

Utilities to help expose prettier output in linting tools

Full zlib module for the browser

Modern Buffer API polyfill without footguns

Mirror of mkdirp 0.5.2

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

HTTP methods that node supports

timers module for browserify

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

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

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.

Generic extension manager for WebSocket connections

Simple RFC 6838 media type parser and formatter

Growl unobtrusive notifications

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

Manipulate the HTTP Vary header

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

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

parse a url with memoization

QRCodes, in the terminal

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

process information for node.js and browsers

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

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

Creates a shallow clone of any JavaScript value.

Converter from any base to other any base

Check if a value is a natural number

Wrap Streams2 instance into a HandleWrap

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

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

JavaScript implementation of the BSER Binary Serialization

An XML builder for node.js

This is lightweight memory stream module for node.js.

Convert a typed array to a Buffer without a copy

returns nonce

Postgres bytea parser

Pluralize and singularize any word

node.js basic auth parser

Port of the OpenBSD bcrypt_pbkdf function to pure JS

Querystringify - Small, simple but powerful query string parser.

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

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

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

Port of TweetNaCl cryptographic library to JavaScript

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

Utils for working with JavaScript classes and prototype methods.

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

The map of HTTP status codes from the builtin http module

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.

Toggle current selected content in browser

Compressible Content-Type / mime checking

compose Koa middleware

Serve directory listings

asynchronous file and directory operations for Node.js

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

A JavaScript parser

A highly configurable, middleware compatible implementation of CORS.

a collection of useful streams

`process.stdout` in your browser.

Range header field string parser

Check that two PostCSS nodes share the same parent.

WebSocket protocol handler with pluggable I/O

Detect if your code is running on an AWS Lambda server

Isomorphic WHATWG Fetch API, for Node & Browserify

For encoding to/from base64urls

Parse a passwd file into a list of users.

HTTP proxying for the masses

printf, sprintf, and vsprintf for JavaScript

Generate a hex color from the given text

Promisify a callback-based function

Utilities for the snapdragon parser/compiler.

API for combining call site modifiers

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

Node.js CORS middleware

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

A mirror of Facebook's Warning

Get the command from a shebang

a fast, efficient buffer writer

A lightweight library that provides tools for organizing asynchronous code

Join paths and globs.

qjobs is a simple and stupid queue job manager for nodejs

ECMAScript6 WeakMap polyfill

For adding, subtracting, and indexing discontinuous ranges of numbers

Allow parsing of jsx

JSON.parse with context information on error

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

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

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

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

JSON Schema for HTTP Archive (HAR)

Safely get a dot-notated property within an object.

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

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

Deprecate all the things

Object.fromEntries() ponyfill (in 6 lines)

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.

the tty module from node core for browsers

A polyfill for the Resize Observer API

minimalistic-assert ===

Helper function to hoist variables

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

XMLHttpRequest for Node

Environment agnostic event emitter

Minify URLs by converting them from absolute to relative.

Additional ESLint rules for ESLint directive comments.

Require constants across node and the browser

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

Helper function to call delegate

Helper function to define a map

Plugin for loglevel message prefixing

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

Helper function to replace supers

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

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.

Manages the raw value formatting for generated AST nodes.

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

Blazing fast unique hash generator

Recursively flatten an array or arrays.

A stream that emits multiple other streams one after another.

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

Merge multiple streams into one stream in sequence or parallel.

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.

List of known file extensions and their MIME types

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

URI validation functions

Easily add plugin support to your node.js application.

ECMAScript reserved words checker

Zero cost events

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.

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

Complete list of standard emojis.

ESLint plugin about ECMAScript syntactic features.

resolve which handles browser field support in package.json

Helper function to optimise call expression

Remove wrapping quotes from a string.

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

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

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

CSS parser

Apply ES2015 function.name semantics to all functions

Generate a slug – transliteration with a lot of options

Map `visit` over an array of objects.

Compile ES2015 destructuring to ES5

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

Compile ES2015 sticky regex to an ES5 RegExp constructor

Bit twiddling hacks for JavaScript

Custom errors

removes trailing slashes

Automatically add displayName to all your components

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 `_.uniq` exported as a module.

Rational approximation with bounded denominator

Require global variables

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

Javascript Redis protocol (RESP) parser

Helper function to build binary assignment operator visitors

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

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

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

Like an array, but rounder.

Format and manipulate numbers.

Time duration utilities

Microsoft sucks

Library to walk OAS 3 schema objects and call a callback

babel selfContained runtime

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

Temporary files and directories

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

Local username and password authentication strategy for Passport.

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

Helper function to check for literal RegEx

Awesome Media Queries in JavaScript

Helper function to get function arity

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

Write buffer

LRU Queue

merge() utility function

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

Convert a file: URI to a file path

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

ECMAScript 2015 (ES6) Object.assign polyfill and ponyfill

Allow parsing of object rest/spread

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

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

Higher-order functions for easier error handling

invariant

A small api to read and write your requirejs config file

Returns true if a string has an extglob.

Unsigned integers for Javascript

Random number generator for browsers and node.js

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

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

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

Colors of Google's Material Design made available to coders

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

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

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

A tiny (less than 1k) event emitter library

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

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.

Fastest stable deterministic JSON.stringify()

Code for processing filters in pug templates

Native JS murmur hash implementation

Select protocol using first bytes of incoming data and hose stuff to the handler