NodeJS Packages and Resources

A curated list of delightful Node.js packages and resources.


Mad science

  • webtorrent – Streaming torrent client for Node.js and the browser.
  • peerflix – Streaming torrent client.
  • dat – Real-time replication and versioning for data sets.
  • ipfs – Distributed file system that seeks to connect all computing devices with the same system of files.
  • Breach – Modular and hackable browser written in JavaScript.
  • peerwiki – All of Wikipedia on BitTorrent.
  • peercast – Stream a torrent video to Chromecast.
  • BitcoinJS – Clean, readable, proven Bitcoin library.
  • js-git – JavaScript implementation of Git.
  • NodeOS – The first operating system powered by npm.
  • PDFKit – PDF generation library.
  • turf – Modular geospatial processing and analysis engine.

Command-line apps

  • pageres – Responsive website screenshots.
  • trash – A safer alternative to rm.
  • yo – Run Yeoman generators.
  • ESLint – The pluggable linting utility for JavaScript.
  • JSHint – A community-driven tool to detect errors and potential problems in JavaScript code.
  • JSCS – JavaScript Code Style checker.
  • cpy – Copy files.
  • torrent – Download torrents.
  • David – Tells you when your package npm dependencies are out of date.
  • vtop – More better top, with nice charts.
  • tmpin – Adds stdin support to any CLI app that accepts file input.
  • normit – Google Translate with speech synthesis in your terminal.
  • esformatter – JavaScript code beautifier/formatter.
  • is-up – Check whether a website is up or down.
  • ipify – Get your public IP address.
  • http-server – Simple, zero-config command-line HTTP server.
  • bcat – Pipe command output to web browsers.
  • slap – Sublime-like terminal-based text editor.
  • jsinspect – Detect copy-pasted and structurally similar code.
  • pjs – Pipeable JavaScript. Quickly filter, map, and reduce from the terminal.
  • license-checker – Check licenses of your app’s dependencies.

Functional programming

  • Lo-Dash – A utility library delivering consistency, customization, performance, & extras. A better and faster Underscore.js.
  • Mout – Utility library with the biggest difference between other existing solutions is that you can choose to load only the modules/functions that you need, no extra overhead.
  • mori – A library for using ClojureScript’s persistent data structures and supporting API from the comfort of vanilla JavaScript.
  • Folktale – A suite of libraries for generic functional programming in JavaScript that allows you to write elegant, modular applications with fewer bugs, and more reuse.
  • immutable – Immutable data collections.
  • underscore-contrib – The brass buckles on Underscore’s utility belt.
  • Bacon.js – Functional reactive programming.
  • Lazy.js – Utility library similar to Lo-Dash/Underscore but with lazy evaluation, which can translate to superior performance in many cases.


  • request – Simplified HTTP request client.
  • got / sent – A nicer interface to the built-in http module.
  • superagent – A small progressive HTTP request library.
  • axios – Promise based HTTP client (works in the browser too).
  • hyperquest – Streaming HTTP requests.
  • spdy – Creates SPDY servers with the same API as the built-in https module.
  • Nock – A HTTP mocking and expectations library.
  • download – Download and extract files effortlessly.
  • wreck – HTTP Client Utilities.

Debugging / Profiling

  • node-inspector – Debugger based on Blink Developer Tools.
  • Theseus – A new type of JavaScript debugger featuring real-time code coverage, retroactive inspection and asynchronous call tree.
  • longjohn – Long stack traces with configurable call trace length.
  • debug – Tiny debugging utility.
  • jstrace – Dynamic tracing for JavaScript, similar to dtrace, ktap etc.
  • TraceGL – Transforms your JavaScript, injecting monitoring code that produces a log of everything that happens.
  • spy-js – Tracing tool for JavaScript, featuring configurable event capturing, searchable call stack, code coverage, recorded object values inspection, multi process and node cluster tracing support.
  • njsTrace – Instrument and trace your code, see all function calls, arguments, return values, as well as the time spent in each function.
  • vstream – Instrumentable streams mix-ins to inspect a pipeline of streams.
  • stackman – Enhance an error stacktrace with code excerpts and other goodies.


  • winston – A multi-transport async logging library.
  • Bunyan – A simple and fast JSON logging library.
  • intel – A comprehensive logging library (handlers, filters, formatters, console injection).

Web frameworks

  • Koa – A new web framework designed by the team behind Express, which aims to be a smaller, more expressive, and more robust foundation for web applications and APIs.
  • Express – A minimal and flexible web application framework, providing a robust set of features for building single and multi-page, and hybrid web applications.
  • Hapi – A rich framework for building applications and services.
  • LoopBack – Powerful framework for creating REST APIs and easily connecting to backend data sources.
  • Meteor – An ultra-simple, database-everywhere, data-on-the-wire, pure-Javascript web framework.
  • SailsJS – An MVC web framework with a modern twist, supporting WebSockets, streams, and a data-driven API.
  • Restify – A node framework built specifically to enable you to build correct REST web services.
  • Derby – MVC framework, making it easy to write realtime, collaborative applications that run in both Node.js and browsers.
  • Interfake – Rapid prototyping framework for making mock HTTP APIs, with a Node, command-line and HTTP interface.

Command-line utilities

  • chalk – Terminal string styling done right.
  • minimist – Parse command-line flags.
  • get-stdin – Easier stdin.
  • Inquirer.js – Interactive command-line prompt.
  • update-notifier – Update notifications for your CLI app.
  • sudo-block – Block users from running your app with root permissions.
  • configstore – Easily load and persist config without having to think about where and how.
  • insight – Helps you understand how your tool is being used by anonymously reporting usage metrics to Google Analytics.
  • sparkly – Generate sparklines ▁▂▃▅▂▇
  • blessed – A curses-like library.
  • cli-table – Pretty unicode tables.
  • drawille – Draw on the terminal with unicode braille characters.
  • progress – Flexible ascii progress bar.
  • log-symbols – Colored symbols for various log levels.
  • columnify – Create text-based columns suitable for console output. Supports cell wrapping.
  • googleauth – Create and load persistent Google authentication tokens for command-line apps.
  • figures – Unicode symbols with Windows CMD fallbacks.
  • cli-cursor – Toggle the CLI cursor.
  • ascii-charts – ACII bar chart in the terminal.

Package managers

  • npm – A package manager for Node.js and the web.
  • Bower – A package manager for the web.
  • Component – A package manager for building better web apps.
  • Duo – A next-generation package manager for the front-end.
  • – Frictionless browser package management with support for ES6, CommonJS, AMD modules.

Build tools

  • gulp.js – Streaming and fast build system that favors code over config.
  • grunt – Task runner that can perform repetitive tasks like minification, compilation, unit testing, linting, etc.
  • Broccoli – A fast, reliable asset pipeline, supporting constant-time rebuilds and compact build definitions.
  • browserify – Browser-side require() the Node.js way.
  • webpack – Packs CommonJS/AMD modules for the browser.
  • Brunch – Front-end web app build tool with simple declarative config, fast incremental compilation, and an opinionated workflow.


  • johnny-five – Firmata based Arduino Framework.
  • serialport – Access serial ports for reading and writing.
  • usb – USB library.
  • cylon.js – Next generation robotics framework with support for 26 different platforms.


  • handlebars.js – A superset of Mustache templates which adds powerful features like helpers and more advanced blocks.
  • hogan.js – Twitter’s small, fast, phase-separated compiler for Mustache templates.
  • Jade – High performance template engine heavily influenced by Haml.
  • nunjucks – A powerful templating engine with inheritance, asynchronous control, and more (jinja2 inspired).


  • Docco – A quick-and-dirty documentation generator which produces an HTML document that displays your comments intermingled with your code.
  • JSDoc – API documentation generator similar to JavaDoc or PHPDoc.
  • dox – JavaScript documentation generator using Markdown and JSDoc.
  • jsdox – JSDoc3 to Markdown documentation generator.
  • apiDoc – Inline documentation for RESTful web APIs.


  • del – Delete files/folders using globs.
  • globby – Glob files with support for multiple patterns.
  • cpy – Copy files.
  • rimraf – Recursively delete files like rm -rf.
  • mkdirp – Recursively create directories like mkdir -p.
  • graceful-fs – Drop-in replacement for the fs module with various improvements.
  • fs-extra – Extra methods for the fs module.
  • fs-write-stream-atomic – Like fs.createWriteStream(), but atomic.
  • lnfs – Force create symlinks like ln -fs.
  • chokidar – Filesystem watcher which stabilizes events from and fs.watchFile as well as using native fsevents on OS X.
  • gaze – A globbing watch module which uses custom native binaries to listen to filesystem events.

Control flow

  • Callbacks
    • each-async – Async concurrent iterator like forEach.
    • async – Provides straight-forward, powerful functions for working with asynchronousity.
    • after-all-results – Bundle results of async functions calls into one callback with all the results.
  • Generators
    • co – The ultimate generator based flow-control goodness.
    • suspend – Generator-based control flow that plays nice with callbacks, promises, and thunks.
  • Promises
    • native-promise-only – A polyfill for native ES6 Promises.
    • Bluebird – A fully featured promise library with focus on innovative features and performance.
    • Q – A tool for making and composing asynchronous promises.
  • Streams
    • Highland.js – Manages synchronous and asynchronous code easily, using nothing more than standard JavaScript and Node-like Streams.
  • Channels
    • js-csp – Communicating sequential processes for JavaScript (like Clojurescript core.async, or Go).
  • Other
    • zone – Provides a way to group and track resources and errors across asynchronous operations.


  • through2 – Tiny wrapper around streams2 Transform to avoid explicit subclassing noise.
  • concat-stream – Concatenates a stream into strings or binary data.
  • simple-bufferstream – Turn a Buffer into a ReadableStream.
  • co-streamco generator stream.
  • byline – Super-simple line-by-line Stream reader.
  • first-chunk-stream – Transform the first chunk in a stream.
  • duplexify – Turn a writeable and readable stream into a single streams2 duplex stream.
  • pumpify – Combine an array of streams into a single duplex stream.
  • from2 – Convenience wrapper for ReadableStream, inspired by through2.
  • from2-array – Create a from2 stream based on an array of source values.
  • peek-stream – Transform stream that lets you peek the first line before deciding how to parse it.
  • binary-split – A fast newline (or any delimiter) splitter stream.
  • multistream – Combine multiple streams into a single stream.
  • graphicsmagick-stream – Fast conversion/scaling of images using a pool of long lived graphicsmagick processes.
  • readable-stream – Mirror of Streams2 and Streams3 implementations in core.
  • s3-upload-stream – Upload a stream to an Amazon S3 bucket using multipart upload.
  • through2-concurrent – Transform object streams concurrently.


  • – Enables real-time bidirectional event-based communication.
  • SockJS – Low latency, full duplex, cross-domain channel browser-server, with WebSockets or without.
  • SocketCluster – Scalable HTTP + WebSocket engine which can run on multiple CPU cores.
  • Primus – An abstraction layer for real-time frameworks to prevent module lock-in.
  • Straw – Real-time dataflow framework.



  • sharp – The fastest module for resizing JPEG, PNG, WebP and TIFF images.
  • image-type – Detect the image type of a Buffer/Uint8Array.
  • gm – GraphicsMagick and ImageMagick wrapper.


  • Underscore.string – Collection of string manipulation utilities.
  • he – A robust HTML entity encoder/decoder.
  • iconv-lite – Convert character encodings.
  • escape-string-regexp – Escape RegExp special characters.
  • indent-string – Indent each line in a string.
  • strip-indent – Strip leading whitespace from every line in a string.
  • detect-indent – Detect the indentation of code.
  • i18n-node – Simple translation module with dynamic JSON storage.
  • string-length – Get the real length of a string – by correctly counting astral symbols and ignoring ansi escape codes.
  • speakingurl – Generate a slug from a string with transliteration.


  • ndarray – Multidimensional arrays.
  • mathjs – An extensive math library.

Data validation

  • joi – Object schema description language and validator for JavaScript objects.


  • css – CSS parser / stringifier.
  • strip-json-comments – Strip comments from JSON.
  • marked – A markdown parser and compiler built for speed.
  • remarkable – A very fast markdown parser with 100% CommonMark support, extensions and syntax plugins.
  • js-yaml – Very fast YAML parser.
  • URI.js – URL mutation.
  • JSONStream – Streaming JSON.parse and stringify.
  • csv-parser – Streaming CSV parser that aims to be faster than everyone else.
  • excel-stream – Streaming Excel spreadsheet to JSON parser.
  • parse5 – Fast full-featured spec compliant HTML parser.
  • htmlparser2 – Forgiving HTML/XML parser.
  • PostCSS – Framework for CSS postprocessors, to modify CSS.
  • PEG.js – Simple parser generator that produces fast parsers with excellent error reporting.


  • pretty-bytes – Convert bytes to a human readable string: 13371.34 kB.
  • pretty-ms – Convert milliseconds to a human readable string: 133700000015d 11h 23m 20s.
  • ms – Tiny millisecond conversion utility.
  • pretty-error – Errors with less clutter.
  • humanize – Data formatter for human readability.
  • node-read – Extract readable content from any page.


  • Archiver – Streaming interface for archive generation, supporting ZIP and TAR.
  • decompress-zip – Unzip.
  • tar-stream – Streaming tar parser and generator. Also see tar-fs.
  • decompress – A pluggable decompression module with support for tar, tar.gz and zip files out of the box.


  • get-port – Get an available port.
  • ipify – Get your public IP address.

Static site generators

  • Metalsmith – An extremely simple, pluggable static site generator.
  • Wintersmith – Flexible, minimalistic, multi-platform static site generator.
  • Assemble – Static site generator for Node.js, Grunt.js, and Yeoman.

Content management systems

  • KeystoneJS – CMS and web application platform built on Express and MongoDB.
  • Calipso – A simple content management system, built along similar themes to Drupal and WordPress, that is designed to be fast, flexible and simple.
  • Apostrophe2 – A content management system with an emphasis on intuitive front end content editing and administration built on Express and MongoDB.


  • nodeBB – A better forum platform for the modern web.


  • ghost – Simple, powerful publishing platform that allows you to share your story with the world.
  • Hexo – Fast, simple and powerful blogging framework.


  • Drivers
    • LevelUP – LevelDB.
    • MongoDB – MongoDB driver.
    • PostgreSQL – PostgreSQL client. Pure JavaScript and native libpq bindings.
    • MySQL – MySQL client.
    • Redis – Redis client.
  • ODM / ORM
    • Bookshelf – ORM for PostgreSQL, MySQL and SQLite3 in the style of Backbone.js.
    • JugglingDB – Multi-database ORM with a common API. Supports Redis, PostgreSQL, MongoDB, MySQL, SQLite, Neo4j, memory, and more.
    • Mongoose – Elegant MongoDB object modeling.
    • Sequelize – Multi-dialect ORM. Supports PostgreSQL, SQLite, MySQL.
    • Waterline – Datastore-agnostic tool that dramatically simplifies interaction with one or more databases.
    • Iridium – A high performance MongoDB ORM with support for promises, distributed caching, preprocessing, validation and plugins.
    • OpenRecord – ORM for PostgreSQL, MySQL, SQLite3 and RESTful datastores. Similar to ActiveRecord.
  • Query builder
    • Knex – A query builder for PostgreSQL, MySQL and SQLite3, designed to be flexible, portable, and fun to use.


  • tapeTAP-producing test harness.
  • Mocha – A feature-rich test framework making asynchronous testing simple and fun.
  • Mochify – TDD with Browserify, Mocha, PhantomJS and WebDriver.
  • loadtest – Run load tests for your web application, with an API for automation.
  • istanbul – A code coverage tool that computes statement, line, function and branch coverage with module loader hooks to transparently add coverage when running tests.
  • Sinon.JS – Test spies, stubs and mocks.
  • Karma – Executes code in multiple real browsers.
  • Nightmare – High-level PhantomJS wrapper that lets you automate browser tasks.


  • Benchmark.js – A robust benchmarking library that works on nearly all JavaScript platforms, supports high-resolution timers, and returns statistically significant results.
  • matcha – A caffeine driven, simplistic approach to benchmarking.



  • Passport – Simple, unobtrusive authentication.
  • everyauth – Authentication and authorization (password, facebook, & more) for your Connect and Express apps.
  • passwordless – Token-based authentication middleware for Express allowing authentication without passwords.
  • Lockit – Full featured authentication solution for Express. Supports a variety of databases, predefined routes, email and two-factor authentication.

Node.js management

  • n – Node.js version management.
  • nave – Virtual Environments for Node.js.
  • nodeenv – A Node.js virtual environment compatible to Python’s virtualenv.
  • nvm for Windows – Version management for Windows.



Natural language processing

  • natural – A general natural language facility.
  • retext – An extensible natural language system.
  • franc – Detect the language of text.
  • leven – Measure the difference between two strings using the Levenshtein distance algorithm.

Process management

  • node-windows – Run scripts as a native Windows service and log to the Event viewer.
  • node-mac – Run scripts as a native Mac daemon and log to the console app.
  • node-linux – Run scripts as native system service and log to syslog.
  • forever – A simple CLI tool for ensuring that a given script runs continuously (i.e. forever).
  • supervisor – Restart scripts when they crash or restart when a *.js file changes.
  • PM2 – Advanced Process Manager.
  • Phusion Passenger – Friendly process manager that integrates directly into Nginx.


  • Acorn – A tiny, fast JavaScript parser.
  • Rocambole – Recursively walk and transform JavaScript AST.



  • multiline – Multiline strings in JavaScript.
  • opn – Opens stuff like websites, files, executables.
  • semversemver parser.
  • cheerio – Fast, flexible, and lean implementation of core jQuery designed specifically for the server.
  • require-uncached – Require a module bypassing the cache.
  • Faker.js – Generate massive amounts of fake data.
  • Bottleneck – A powerful rate limiter that makes throttling easy.
  • stringify-object – Stringify an object/array like JSON.stringify just without all the double-quotes.
  • strip-bom – Strip UTF-8 byte order mark (BOM) from a string/buffer/stream.
  • shelljs – Portable Unix shell commands.
  • nan – A header file filled with macro and utility goodness for making add-on development for across Node.js versions easier.
  • ssh2 – An SSH2 client module.
  • lazy-req – Require modules lazily.
  • webworker-threads – Lightweight Web Worker API implementation with native threads.
  • node-pre-gyp – Makes it easy to publish and install Node.js C++ addons from binaries.
  • opencv – Bindings for OpenCV. The defacto computer vision library.
  • common-errors – Common error classes and utility functions.
  • atom-shell – Cross-platform desktop application shell.
  • agenda – Lightweight job scheduling on MongoDB.




  • – An alternative npm search engine with a more intelligent and personal results ranking.



  • node weekly – Weekly e-mail round-up of Node.js news and articles.





  • Node.js blog
  • HowToNode – Teaching how to do various tasks in Node.js as well as teach fundamental concepts that are needed to write effective code.




  • GitHub Linker – Chrome extension that linkifies dependencies in package.json on GitHub.


  • nodebots – Robots powered by JavaScript.

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