Maps
OpenStreetMap is the free wiki world map

JavaScript libraries
jQuery The Write Less Do More JavaScript Library

Authentication
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UI frameworks
Powerful extensible and feature packed frontend toolkit Build and customize with Sass utilize prebuilt grid system and components and bring projects to life with powerful JavaScript plugins

CDN
The recommended free CDN for Bootstrap Font Awesome Bootswatch and Bootstrap Icons

Widgets
You xe2 x80 x99ve probably heard about cookies but do you know what they are We will explain cookies to you in an easy and fun way