jQuery - The Write Less, Do More, JavaScript Library.
codepad - Very simple webpage with a simple textbox, a checkbox for selecting one of several languages and an...
Modernizr - Modernizr is a JavaScript library which is designed to detect HTML5 and CSS3 features in various browsers.
Dev Resources by Codekeep - #StayHome - Free Resources to up-skill yourself.
React Native - A framework for building native apps with React
Anyfiddle - Build, run and share code in any language from your browser