Ramda
:ram: Practical functional Javascript
Pure
PURE Unobtrusive Rendering Engine for HTML
Across Tabs
Easy communication between cross-origin browser tabs
Mjml
MJML: the only framework that makes responsive-email easy
Paperclip.js
reactive DOM template engine built for speed, and extensibility
Fetchival
window.fetch wrapper for writing simple and expressive requests
Underscore
JavaScript's utility _ belt
Java Script Load Image
JavaScript Load Image is a library to load images provided as File or Blob objects or via URL. It returns an optionally scaled and/or cropped HTML img or canvas element. It also provides a method to parse image meta data to extract Exif tags and thumbnails and to restore the complete image header after resizing.
Blizzard.js
A promise-based Node.JS library for the Blizzard Battle.net Community Platform API
Knockout Projections
Knockout.js observable arrays get smarter
Hydra.js
Create a scalable, maintainable and module oriented system using Hydra.js
Davis.js
RESTful degradable JavaScript routing using pushState
Bem Core
BEM Core Library
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.
T.js
A tiny javascript templating framework in ~400 bytes gzipped
Px Loader
PxLoader is a simple JavasScript library for creating preloaders and resource downloaders for HTML5 apps.
Lazyload
Tiny, dependency-free async JavaScript and CSS loader.