BunnyJS - Lightweight native (vanilla) JavaScript (JS) and ECMAScript 6 (ES6) browser library, package of small stand-alone components without dependencies: FormData, upload, image preview, HTML5 validation, Autocomplete, Dropdown, Calendar, Datepicker, Ajax, Datatable, Pagination, URL, Template engine, Element positioning, smooth scrolling, routing, inversion of control and more. Simple syntax and architecture. Next generation jQuery and front-end framework. Documentation and examples available.
https://bunnyjs.com/ doesn't work, it is down