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.

Implementation of JSON Web Signatures

Determine if an object is a Buffer

Require module from string

Full featured Promises/A+ implementation with exceptionally good performance

Safer Node.js Buffer API

get colors in your node.js console

Node.js Buffer API, for the browser

Unpipe a stream from all destinations

JSDoc parser

Fast deep equal

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.

ES2015 `Object.assign()` ponyfill

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

Get the native type of a value.

Basic cache object for storing key-value pairs.

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

The string_decoder module from Node core

the stream module from node core for browsers

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

Convert encodings, uses iconv-lite

HTTP response freshness testing

Iterator abstraction based on ES6 specification

Escape string for use in HTML

Environment agnostic nextTick polyfill

Create simple HTTP ETags

Check whether a string is a URL.

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

Modern Buffer API polyfill without footguns

A cache for managing namespaced sub-caches

Utilities to help expose prettier output in linting tools

Full zlib module for the browser

HTTP methods that node supports

timers module for browserify

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.

Minimal async jobs utility library, with streams support

Simple RFC 6838 media type parser and formatter

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

Generates a base64 id

getpass for node.js

Generic extension manager for WebSocket connections

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

Operating system specific paths.

Manipulate the HTTP Vary header

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

js function for hashing messages with MD5

parse a url with memoization

Growl unobtrusive notifications

QRCodes, in the terminal

Node.JS path module

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

process information for node.js and browsers

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

Check if a value is a natural number

Converter from any base to other any base

Wrap Streams2 instance into a HandleWrap

Mirror of mkdirp 0.5.2

Creates a shallow clone of any JavaScript value.

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

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

An XML builder for node.js

This is lightweight memory stream module for node.js.

returns nonce

JavaScript implementation of the BSER Binary Serialization

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

Convert a typed array to a Buffer without a copy

node.js basic auth parser

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

Postgres bytea parser

Pluralize and singularize any word

Querystringify - Small, simple but powerful query string parser.

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

compose Koa middleware

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

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.

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

The map of HTTP status codes from the builtin http module

Range header field string parser

A JavaScript parser

Serve directory listings

Isomorphic WHATWG Fetch API, for Node & Browserify

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

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

asynchronous file and directory operations for Node.js

Utilities for the snapdragon parser/compiler.

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

printf, sprintf, and vsprintf for JavaScript

WebSocket protocol handler with pluggable I/O

HTTP proxying for the masses

For encoding to/from base64urls

Detect if your code is running on an AWS Lambda server

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

a collection of useful streams

API for combining call site modifiers

Join paths and globs.

Generate a hex color from the given text

Parse a passwd file into a list of users.

A mirror of Facebook's Warning

Check that two PostCSS nodes share the same parent.

ECMAScript6 WeakMap polyfill

For adding, subtracting, and indexing discontinuous ranges of numbers

a fast, efficient buffer writer

Get the command from a shebang

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

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

qjobs is a simple and stupid queue job manager for nodejs

JSON.parse with context information on error

A lightweight library that provides tools for organizing asynchronous code

Safely get a dot-notated property within an object.

Port of the OpenBSD bcrypt_pbkdf function to pure JS

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

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

Deprecate all the things

Allow parsing of jsx

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

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.

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

JSON Schema for HTTP Archive (HAR)

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

A polyfill for the Resize Observer API

XMLHttpRequest for Node

Additional ESLint rules for ESLint directive comments.

Require constants across node and the browser

Minify URLs by converting them from absolute to relative.

Environment agnostic event emitter

Plugin for loglevel message prefixing

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

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

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

Detects if a file exists and returns the resolved filepath.

Utils for working with JavaScript classes and prototype methods.

A stream that emits multiple other streams one after another.

the tty module from node core for browsers

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

Manages the raw value formatting for generated AST nodes.

List of known file extensions and their MIME types

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

Recursively flatten an array or arrays.

Blazing fast unique hash generator

A highly configurable, middleware compatible implementation of CORS.

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

Helper function to hoist variables

Helper function to define a map

Merge multiple streams into one stream in sequence or parallel.

Helper function to call delegate

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

Complete list of standard emojis.

Helper function to replace supers

`process.stdout` in your browser.

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.

ECMAScript reserved words checker

Object utils.

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

URI validation functions

Node.js CORS middleware

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

Easily add plugin support to your node.js application.

Promisify a callback-based function

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

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

Zero cost events

Remove wrapping quotes from a string.

Compile ES2015 destructuring to ES5

Generate a slug – transliteration with a lot of options

A transform to make UglifyJS work in browserify.

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

CSS parser

Custom errors

Javascript Redis protocol (RESP) parser

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

Like an array, but rounder.

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

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

Helper function to optimise call expression

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.

Require global variables

Rational approximation with bounded denominator

Temporary files and directories

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

Bit twiddling hacks for JavaScript

removes trailing slashes

Helper function to build binary assignment operator visitors

Compile ES2015 sticky regex to an ES5 RegExp constructor

Apply ES2015 function.name semantics to all functions

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

Format and manipulate numbers.

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

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

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

Automatically add displayName to all your components

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

Library to walk OAS 3 schema objects and call a callback

Time duration utilities

Local username and password authentication strategy for Passport.

Convert a file: URI to a file path

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

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

merge() utility function

Returns true if a string has an extglob.

minimalistic-assert ===

Random number generator for browsers and node.js

Helper function to check for literal RegEx

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

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

babel selfContained runtime

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

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

invariant

Awesome Media Queries in JavaScript

Write buffer

ECMAScript 2015 (ES6) Object.assign polyfill and ponyfill

Microsoft sucks

Higher-order functions for easier error handling

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

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

A tiny (less than 1k) event emitter library

Unsigned integers for Javascript

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

LRU Queue

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

A small api to read and write your requirejs config file

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

Native JS murmur hash implementation

Code for processing filters in pug templates

Check if a certain debug flag is enabled.

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

Helper function to get function arity

The Lodash method `_.merge` exported as a module.

A basic but performant promise implementation

Miller Rabin algorithm for primality test

Colors of Google's Material Design made available to coders

Allow parsing of object rest/spread

Implementation RFC 3548 Base32 encoding/decoding for node.

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

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

A modern alternative to CSS resets

Get a list of arguments, separated by a comma.

Format data using ECMA-376 spreadsheet Format Codes