Color
JavaScript color conversion and manipulation library
Canvg
Javascript SVG parser and renderer on Canvas
Juggling DB
Multi-database ORM: redis, mongodb, mysql, sqlite, postgres, neo4j, memory... Many databases, common API.
Themoviedb Javascript Library
A Javascript library to interact with themoviedb.org Rest API.
Editr
HTML, CSS and JavaScript playground
Anime
Javascript Animation Engine
Ember
Ember.js is a JavaScript framework that does all of the heavy lifting that you'd normally have to do by hand. There are tasks that are common to every web app; Ember.js does those things for you, so you can focus on building killer features and UI.
Cube.js
📊 Serverless Analytics Framework
Pixastic
JavaScript Image Processing Library
Crossroads.js
JavaScript Routes
Json2html
json2html is a free javascript HTML templating library with wrappers for both jQuery and Node.js. Using custom defined JSON transforms json2html will convert a set of JSON objects, such as an RSS feed into HTML.
Cheerio
Fast, flexible, and lean implementation of core jQuery designed specifically for the server.
Fuse
Lightweight fuzzy-search, in JavaScript
Riotjs
The 1kb client side MV* library
Teoria
A JavaScript music theory framework.
Ass
A JavaScript ASS subtitle format renderer
Mavo
Create web applications entirely by writing HTML and CSS!