1. Leaflet lightweight WebGIS front-end class library#

Leaflet is a modern, open source JavaScript library developed to build a mobile device-friendly interactive map. It was developed by a team of professional contributors led by Vladimir Agafonkin. It has a small amount of code, but has most of the functions that developers can do to develop online maps. Leaflet design adheres to the idea of simplicity, high performance and good availability, works efficiently on all major desktop and mobile platforms, takes advantage of HTML5 and CSS3 in modern browsers, and also supports access to older browsers. Support for plug-in extensions, with a friendly, easy-to-use API documentation and a simple, readable source code.