GitHub is the best place to share code with friends, co-workers, classmates, and complete strangers. Over t...

Bitbucket gives teams one place to plan projects, collaborate on code, test and deploy, all with free priva...

MailChimp helps you design email newsletters, share them on social networks, integrate with services you al...

Stripe makes it easy for developers to accept credit cards on the web.

Trello is a collaboration tool that organizes your projects into boards. In one glance, Trello tells you wh...

Firebase is a cloud service designed to power real-time, collaborative applications. Simply add the Firebas...

Twilio offers developers a powerful API for phone services to make and receive phone calls, and send and re...

Harness the power of Dropbox. Connect to an account, upload, download, search, and more.

Keep photos, stories, designs, drawings, recordings, videos, and more. Your first 15 GB of storage are free...

Sentry’s Application Monitoring platform helps developers see performance issues, fix errors faster, and op...

PayPal is an online payments and money transfer service that allows you to send money via email, phone, tex...

An integrated suite of secure, cloud-native collaboration and productivity apps. It includes Gmail, Docs, D...

Attract, convert, close and delight customers with HubSpot’s complete set of marketing tools. HubSpot all-i...

Shopify powers tens of thousands of online retailers including General Electric, Amnesty International, Cro...

Skype’s text, voice and video make it simple to share experiences with the people that matter to you, where...

Fabric is a Python (2.5-2.7) library and command-line tool for streamlining the use of SSH for application ...

Jest provides you with multiple layers on top of Jasmine.

Python is a general purpose programming language created by Guido Van Rossum. Python is most praised for it...

Django is a high-level Python Web framework that encourages rapid development and clean, pragmatic design.

Java is a programming language and computing platform first released by Sun Microsystems in 1995. There are...

Objective-C is a superset of the C programming language and provides object-oriented capabilities and a dyn...

Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for d...

C# (pronounced "See Sharp") is a simple, modern, object-oriented, and type-safe programming language. C# ha...

AngularJS lets you write client-side web applications as if you had a smarter browser. It lets you use good...

Lots of people use React as the V in MVC. Since React makes no assumptions about the rest of your technolog...

jQuery is a cross-platform JavaScript library designed to simplify the client-side scripting of HTML.

Whether you're building highly interactive web applications or you just need to add a date picker to a form...

PostgreSQL is an advanced object-relational database management system that supports an extended subset of...

Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and mess...

Partitioning means that Cassandra can distribute your data across multiple machines in an application-trans...

Memcached is an in-memory key-value store for small chunks of arbitrary data (strings, objects) from result...

nginx [engine x] is an HTTP and reverse proxy server, as well as a mail proxy server, written by Igor Sysoe...

Gearman allows you to do work in parallel, to load balance processing, and to call functions between langua...

Gunicorn is a pre-fork worker model ported from Ruby's Unicorn project. The Gunicorn server is broadly comp...

npm is the command-line interface to the npm ecosystem. It is battle-tested, surprisingly flexible, and use...

HAProxy (High Availability Proxy) is a free, very fast and reliable solution offering high availability, lo...

JavaScript is most known as the scripting language for Web pages, but used in many non-browser environments...

It is the only complete API development environment, used by nearly five million developers and more than 1...

A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows t...

Stack Overflow is a question and answer site for professional and enthusiast programmers. It's built and ru...

HTML5 is a core technology markup language of the Internet used for structuring and presenting content for ...

React Native enables you to build world-class application experiences on native platforms using a consisten...

Babel will turn your ES6+ code into ES5 friendly code, so you can start using it right now without waiting ...

Immutable provides Persistent Immutable List, Stack, Map, OrderedMap, Set, OrderedSet and Record. They are ...

WooCommerce is the most popular WordPress eCommerce plugin. And it's available for free. Packed full of fea...

An easy to use email app that saves you time and keeps your messages safe. Get your messages instantly via ...

You can get vector icons and social logos on your website with it. It is a font that's made up of symbols, ...

A unified developer experience for web and mobile development, built as a suite of packages on top of Atom ...

GraphQL is a data query language and runtime designed and used at Facebook to request and deliver data to m...

It helps you write applications that behave consistently, run in different environments (client, server, an...

Build and debug modern web and cloud applications. Code is free and available on your favorite platform - L...

Flow is a static type checker for Javascript created by Facebook.

It lets you write simple, fast and quality type safe code while leveraging both the JavaScript & OCaml ecos...

It is a bunch of cool, fun, and cross-browser animations for you to use in your projects. Great for emphasi...