Ol3
OpenLayers 3
Offline
Automatically display online/offline indication to your users. #hubspot-open-source
Carlo
Web rendering surface for Node applications
Pdfmake
Client/server side PDF printing in pure JavaScript
Tracking.js
The tracking.js brings to web elements tracking techniques of a real scene captured by the camera, through natural interactions from object tracking, color markers, among others, allowing the development of interfaces and games through a simple and intuitive API.
Cropperjs
JavaScript image cropper.
I18next
Internationalisation (i18n) with javascript the easy way (incl. jquery plugin)
Annyang
A javascript library for adding voice commands to your site, using speech recognition.
Iframe Resizer
Keep same and cross domain iFrames sized to their content with support for window/content resizing, nesting and multiple iFrames. (Dependency free, IE8+)
Pdfkit
A JavaScript PDF generation library for Node and the browser
Globalize
A JavaScript library for internationalization and localization that leverages the official Unicode CLDR JSON data
Togetherjs
A service for your website that makes it surprisingly easy to collaborate in real-time.
URI.js
Javascript URL mutation library
Hello.js
A Javascript RESTFUL API library for connecting with OAuth2 services, such as Google+ API, Facebook Graph and Windows Live Connect
Sir Trevor Js
Rich content editing entirely re-imagined for the web
Anypixel
AnyPixel.js is an open-source software and hardware library that makes it possible to use the web to create big, unusual, interactive displays.
Qrcodejs
Cross-browser QRCode generator for javascript