Lunr.js
A bit like Solr, but much smaller and not as bright
Lightgallery.js
Full featured javascript lightbox gallery. No dependencies.
J Query Mask Plugin
A jQuery Plugin to make masks on form fields and HTML elements.
Pagerjs
The Single Page Application Framework for KnockoutJS
Egg.js
A simple javascript library to add easter eggs to web pages.
Boomerang
End user oriented web performance testing and beaconing
SockJS Client
WebSocket emulation - Javascript client
Skrollr
Stand-alone parallax scrolling library for mobile (Android + iOS) and desktop. No jQuery. Just plain JavaScript (and some love).
Psd.js
A Photoshop PSD file parser for NodeJS and browsers
Jump.js
A small, modern, dependency-free smooth scrolling library.
Diagram
JS tool for making node graphs. Inspired by dependency graph
Length.js
📏 JavaScript library for length units conversion.
Phantomjs
Scriptable Headless WebKit
Html2canvas
Screenshots with JavaScript
Howler.js
Javascript audio library for the modern web.
Verly.js
:red_circle::wavy_dash::large_blue_circle::wavy_dash::black_circle: Easy to integrate Verlet physics engine. :link:
Fotorama
A simple, stunning, powerful jQuery gallery. Licensed under the MIT.