Webshim
Webshims Lib is a modular capability-based polyfill-loading library
Fetchival
window.fetch wrapper for writing simple and expressive requests
jStorage
jStorage is a simple key/value database to store data on browser side. As a bonus it is also a local pubsub platform to sync data between tabs/windows
Keymaster
A simple micro-library for defining and dispatching keyboard shortcuts. It has no dependencies.
Backbone Nested
A plugin to make Backbone.js keep track of nested attributes.
Backbone Associations
Create object hierarchies with Backbone models; Respond to hierarchy changes using regular Backbone events.
Speakingurl
Generate of so called "static" or "nice-looking" or "slug" or "SpeakingURL" from a string.
Page.js
Micro client-side router inspired by the Express router (~1200 bytes)
Meld
AOP for JS with before, around, on, afterReturning, afterThrowing, after advice, and pointcuts
Jquery Timeago
Timeago is a jQuery plugin that makes it easy to support automatically updating fuzzy timestamps (e.g. "4 minutes ago").
Intercooler Js
Making AJAX as easy as anchor tags
Bottlejs
A powerful, extensible dependency injection micro container for JavaScript applications
Min Pub Sub
198 byte publish/subscribe messaging micro-framework
Connective
agent-based reactive programming library for typescript
Hamsters.js
100% Vanilla Javascript Multithreading & Parallel Execution Library
Lodash
An alternative to Underscore.js, delivering consistency, customization, performance, and extra features.
Fluxxor
Flux architecture tools for React