DOMPurify - a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMPurify works with a secure default, but offers a lot of configurability and hooks. Demo:
Turbolinks makes navigating your web application faster
Highly customizable vanilla JS tooltip/popover library
📑 Lightweight dom diffing with plain old html.
Fast, flexible, and lean implementation of core jQuery designed specifically for the server.
A positioning engine to make overlays, tooltips and dropdowns better #hubspot-open-source
A lightweight, fast, feature-rich, powerful and highly configurable delayed content, image and background lazy loading plugin for jQuery & Zepto.
Exit popup easely. Detects if the mouse of a user leaves the viewport borders of your website
:ok_hand: Drag and drop so simple it hurts
bind.js - simple two way data binding to HTML and callbacks
NodeList implementation/library - Use the Native DOM APIs as easily as jQuery
A utility library for observing visibility changes of DOM elements.
zoom in on any element in the DOM
nicescroll plugin for jquery - scrollbars like iphone/ipad