With angular, the view and data model are always in sync — there is no need for manual DOM manipulation.

Today we’re open-sourcing a JavaScript library for visually enhancing your web application with guiders. A guider is a dialog box that guides a user through your application. This improves the user experience of a web application by visually introducing the user to important features. E

Also, there’s a paradox-of-choice issue: Consider EveryJS, which lists 21 different JavaScript toolkits, and I bet most of them are really good, and I also bet there are lots more I’ve never heard of. Which are you going to bet on? (At the moment, near as I can tell, almost everyone is using jQuery.)

Google's common Java library for parsing, formatting, storing and validating international phone numbers. Optimized for running on smartphones. A direct port to Javascript is also available.

British Library Sara Online service - examples of word usage

The Endeca User Interface Design Pattern Library (UIDPL) describes principled ways to solve common user interface design problems related to search, faceted navigation, and discovery.

Ember Media Manager (aka EMM or Ember) is an open source movie and TV Show collections management tool which initially has been created to use with XBMC, but it contains YAMJ specific options, moreover it should virtually support most of the other media center application out there. It empowers home theater enthusiasts to manage and organize their entire movie and TV Show collections. EMM will scrape movie and TV Show information (plot, cast, genre, studio, mpaa certification, etc) from various sites, together with posters, fanart, actor photos and even movie trailers. It also automatically extracts media meta data like resolution, codecs, audio and subtitle streams. EMM can also be used as a standalone movie organizer/cataloger, but the primary aim is to export all the data and images to a format which can then be imported into your favorite media center application. In order to achieve this, EMM stores all data and images in files which are saved next to the media files. Media center applications can pick up those files and import the information to their own internal database.

Modernizr is a small and simple JavaScript library that helps you take advantage of emerging web technologies (CSS3, HTML 5) while still maintaining a fine level of control over older browsers that may not yet support these new technologies. Modernizr uses feature detection to test the current browser against upcoming features like rgba(), border-radius, CSS Transitions and many more.

gRaphaël’s goal is to help you create stunning charts on your website. It is based on Raphaël graphics library. Check out the demos to see static and interactive charts in action.

gRaphaël currently supports Firefox 3.0+, Safari 3.0+, Opera 9.5+ and Internet Explorer 6.0+.

This library uses HTML5 features which are implemented in recent browsers. As such you will need to be using one of these latest browsers: Firefox 3.5+, Chrome 2+, Safari 4+, Opera 10.5+ or Internet Explorer 8.

PlotKit is a Chart and Graph Plotting Library for Javascript. It has support for HTML Canvas and also SVG via Adobe SVG Viewer and native browser support.

Synesketch is an artistic software library with synesthetic abilities, created by Uroš Kr?adinac. It is a Web's first free open-source textual emotion recognition and visualization engine – code that feels the words visually!

Deep in the bowels of a brutalist concrete building on the Strand, long shelves are packed – crammed, really – with some of the world’s strangest substances, from the past, present and sometimes, it seems, the future. T

Lucy Mangan / Books | guardian.co.uk

pyOFC2 is a python library for Open Flash Chart

Raphaël is a small JavaScript library that should simplify your work with vector graphics on the web. If you want to create your own specific chart or image crop and rotate widget, for example, you can achieve it simply and easily with this library. Raphaël uses the SVG W3C Recommendation and VML (mostly equivalent Internet Explorer implementation) as a base for creatinggraphics. T

Nothing quite prepares you for the culture shock of Jay Walker's library. You exit the austere parlor of his New England home and pass through a hallway into the bibliographic equivalent of a Disney ride. Stuffed with landmark tomes and eye-grabbing historical objects

Flot is a pure Javascript plotting library for jQuery. It produces graphical plots of arbitrary datasets on-the-fly client-side.

Lightview was built to change the way you overlay content on a website.

Prototip allows you to easily create both simple and complex tooltips using the Prototype javascript framework.

Starbox allows you to easily create all kinds of rating boxes using just one PNG image. The library is build on top of the Prototype javascript framework. For some extra effects you can add Scriptaculous as well. Check the demos below to see what Starbox is all about and read on for more information on how to customize your own Starboxes.

The Google Chart API lets you dynamically generate charts.

ProtoChart is a new opensource library using Prototype and Canvas to create good looking charts. This library is highly motivated by Flot, Flotr and PlotKit libraries.

Have you ever wanted a better way to: * see what your friends are reading? * keep track of what you've read and what you'd like to read? * get great book recommendations from people you know?

The web’s largest stock photo site.

Highslide JS is an open source JavaScript software, offering a Web 2.0 approach to popup windows. It streamlines the use of thumbnail images and HTML popups on web pages.

jQuery is an exceptionally clever piece of engineering. It neatly encapsulates an extraordinary range of common functionality, and provides a clever plugin API for any functionality not included by default. It takes a core abstraction-that of a selection of DOM elements-and extracts as much mileage out of it as possible. Most importantly, it does so in a way that obeys best practices and plays well with other JavaScript code.