Js Cache
jsCache is a javascript library that enables caching of javascripts, css-stylesheets and images using my localStorage polyfill. This is especially useful when serving your website for mobile phones, which have limited HTTP caching available, but also speeds up your site in an ordinary web browser as it saves HTTP requests and loads all files asynchronously.
Boiler
Boiler is a utility library that makes every day tasks in JavaScript easier by providing over 115 methods that work on arrays, collections, functions, numbers, objects, and strings.
Invisible
Invisible.js: Reusable models for the client and the server
Davis.js
RESTful degradable JavaScript routing using pushState
Bootstrap Ajax
A library for adding declarative ajax functionality to your website
Theory
Abstraction layer for cross platform JavaScript.
Pilot
Pilot — multifunction JavaScript router.
Rambda
Faster alternative to Ramda in just 10kB
Loglevel
Minimal lightweight logging for JavaScript, adding reliable log level methods to wrap any available console.log methods
Queen
A platform for running scripts on many browsers
Autolink Js
Tiny little tool to find URLs in a string of text and hyperlink them
JayData
JayData is a unified data access library for JavaScript to CRUD data from different sources like WebSQL/SQLite, IndexedDB, MongoDb, ASP.NET WebAPI, OData, HTML5 localStorage, Facebook or YQL. The library can be integrated with KendoUI, Knockout.js, Handlebars.js or Sencha Touch 2 and can be used on Node.js as well.
Min Pub Sub
198 byte publish/subscribe messaging micro-framework
Humane.js
A simple, modern, browser notification system
Buster
A powerful suite of automated test tools for JavaScript.
Tock
Timer Object/Class. Kickass!
Gas
Google Analytics on Steroids. A Google Analytics implementation with more power features.