JavaScript libraries
Polyfill io is a service which accepts a request for a set of browser features and returns only the polyfills that are needed by the requesting browser

JavaScript libraries
Touch enabled jQuery plugin that lets you create beautiful responsive carousel slider

JavaScript libraries
jQuery The Write Less Do More JavaScript Library

JavaScript libraries
jQuery UI is a curated set of user interface interactions effects widgets and themes built on top of the jQuery JavaScript Library Whether you re building highly interactive web applications or you just need to add a date picker to a form control jQuery UI is the perfect choice

Geolocation
ipify API is a simple public IP address API easy enough to integrate into any application in seconds

Analytics

Font scripts
The internet s icon library toolkit Used by millions of designers devs content creators Open source Always free Always awesome

Programming languages
Adobe Flash Player End of Life general information

Font scripts
Typekit is an online service which offers a subscription library of fonts

JavaScript frameworks
React is the library for web and native user interfaces Build user interfaces out of individual pieces called components written in JavaScript React is designed to let you seamlessly combine components written by independent people teams and organizations

Ecommerce
The World Wide Web Consortium W3C develops standards and guidelines to help everyone build a web based on the principles of accessibility internationalization privacy and security

Web frameworks
Material UI is an open source React component library that implements Google s Material Design It s comprehensive and can be used in production out of the box