gRaphaël’s goal is to help you create stunning charts on your website. It is based on Raphaël graphics library.

Rickshaw is a JavaScript toolkit for creating interactive time series graphs.

Converts Perl 5 and Perl 6 to various other languages, including Ruby and JavaScript

ruby to javascript compiler. Looks impressive and is actually being developed.

an improved WYSIWYG in-browser text editor

In-browser code editing made bearable....

For a plethora of languages (more than just those i tagged it with) also offers vim keybindings

Build HTML5/JavaScript mobile apps that automatically transform to the native look-and-feel of iOS, Android and BlackBerry. Take advantage of Kendo UI Mobile’s unique adaptive rendering to target multiple phone and tablet platforms with single UI codebase. Learn more

Coffeescript/Javascript method combinations for Underscore projects. This library adds before, after, around, and guard method combinations to underscore.js projects, in much the same style as the Common Lisp Object System or Ruby on Rails controllers. With method combinations, you can easily separate concerns.

C2 is a Clojure and ClojureScript data visualization library heavily inspired by Mike Bostock's Data Driven Documents. C2 lets you declaratively create HTML and SVG markup based on data:

a JavaScript library that can be used to generate fully customizable QR codes. The QR editing and encoding functionality is 100% done on the client. You are not dependent on internet access or any server side libraries to create and customize your very own QR code! There are two export formats supported right now: image/png and .SVG After including the script there will be an object called QR added to the global scope and by accessing it’s encode function you will be able to generate your codes. The item contains the script, an example with some usecases and a README containing the documentation for the library.

responsive css jquery based carousel / slideshow plugin

ghost.py is a webkit web client written in python.

The core purpose of LABjs is to be an all-purpose, on-demand JavaScript loader, capable of loading any JavaScript resource, from any location, into any page, at any time. Loading your scripts with LABjs reduces resource blocking during page-load, which is an easy and effective way to optimize your site's performance.

phonegap for mac / os x

Touch Event Support for jQuery UI

Desktop WebKit wrapper for HTML/CSS/JS applications.

retina.js is an open source script that makes it easy to serve
high-resolution images to devices with retina displays

It's like Dropbox for your app's data.


A scalable real-time backend for your web app
Build apps really fast without the hassle of managing servers.

introducing jmpress.js: a jQuery plugin to build a website on the infinite canvas

It's a presentation framework based on the power of CSS3 transforms and transitions in modern browsers and inspired by the idea behind prezi.com

Ziptastic is a simple API that allows people to ask which Country,State and City are associated with a Zip Code.

Pusher SAAS replacement ?

Real-time Push/Pull notification service made out of node.js, using socket.io. It lets you execute javascript from the server side to all clients subscribed to a channel. You can send commands on any programming language that supports POST requests.

HOWTO: Create native-looking iPhone/iPad applications from HTML, CSS and JavaScript

a nice js tool that allows you to project "slides" (html) on a surface and "swipe" between them (supports touch gestures) allows slides to be laid out in 2d on a plane.

a tool which allows you to quickly create good looking HTML presentations. Beyond the changed name, the updated slideshow includes a fair amount of new features:

You need to measure stuff. Key performance indicators, server load, user sign ups, etc. And when you've measured it you need to visualize it.

jSlate lets you do dashboarding your way. Hook up to any online datasource and create exactly the visualization you need.

An easy and unobtrusive way to use jQuery's autocomplete with Rails 3

Powerful canvas based graphing library that includes support for Venn Diagrams

Mojito is a sweet (and minty!) MVC application framework built on YUI 3 that enables agile development of Web applications. Mojito allows developers to write client and server components in the same language (JavaScript), using the same framework. Because Mojito applications are written in JavaScript, they can run on the client (in the browser) and on the server (with Node.js). In addition, Mojito has built-in support for internationalization, testing, and building documentation.

literal 3d accordion fold visualization with css html5 and javascript. Works best in Safari and Firefox. Has problems in Chrome and Opera

A JavaScript client-side only Twitter client ready to be customized hacked to your needs

Rainbow is a code syntax highlighting library written in Javascript.
It was designed to be lightweight (1.2kb), easy to use, and extendable.
It is completely themable via CSS.

the javascript apple uses to replace low rez images with retina images

gives you the ability to use Sinon.js in Jasmine tests

an email domain spelling suggester... to help keep people from mistyping the domain name in their email.

Keymaster is a simple (100 LoC or so) micro-library for defining and dispatching keyboard shortcuts. It has no dependencies.

Smoothie Charts is a really small charting library designed for live streaming data. I built it to reduce the headaches I was getting from watching charts jerkily updating every second.

enables you to create semi-transparent div backgrounds

Nice, JavaScript calenedar date picker.

SQLite ported to javascript!

provides debugging support for CoffeeScript by matching JS lines to CS lines

page that will test the limits of localstorage on your current device

BankersBox is a javascript library that injects Redis-like steroids into javascript data storage and uses localStorage as the default persistent data-store. There is a pluggable storage adapter system to allow other means of persisting the data stored in BankersBox.

ios style popovers

f_underscore.js is a library of functions that create and compose iterator functions. It is designed to be used in conjunction with underscore.js's functions that employ iterators, functions like filter and map. With the f_underscore.js library you can wield and weld iterator functions declaratively and dynamically. It's the tie clip to go along with underscore.js's tie.

Enyo is an open source object-oriented JavaScript framework emphasizing encapsulation and modularity. Enyo contains everything you need to create a fast, scalable mobile or web application:

Built from the ground-up for mobile first - Enyo powers webOS, and was designed from the beginning to be fast and work great on mobile devices
Now available for desktop and cross-browser development - Enyo 2.0 now runs across mobile environments and desktop browsers including Chrome, Firefox, and Internet Explorer
Highly customizable and extensible - Enyo core can be expanded with modules, UI widgets, and more
Lightweight and fast - Enyo 2.0 core is about 17KB gzipped, and built for fast application rendering and performance
Simple, self-contained, and easy to digest - Build increasingly complex functionality starting with simple, reusable components
Built to scale - Enyo was created on the principles needed to build vast, complex mobile and web applications
Open Source - Enyo is available under the Apache License, Version 2.0.

Built on top of Node's Connect and Express, modeled after Ruby on Rails. Built for the client and server from the ground up.

Morris.js is a lightweight library that uses jQuery and Raphaël to make drawing time-series graphs easy.

Zepto.js is a minimalist JavaScript framework for modern web browsers*, with a jQuery-compatible syntax.

also works with Backbone

simulates one or two finger on iOS using a mouse. great for testing

the new home of PhoneGap

useful tips, many of which apply even if you're not using Hype

Phantom Limb makes desktop browsers simulate touch events
has a bookmarklet to activate it too... ooh aaah

a cool looking open source continuous integration server with a HOSTED version that hooks into GitHub and supports multiple languages

by default items are added to the bottom of a list. this shows how to make them be added in sorted order.

a date formatting library.

Boilerstrap is a mash-up of HTML5 Boilerplate and Twitter Bootstrap

think jsfiddle... only opensource, and somewhat nicer looking

Tangle is a JavaScript library for creating reactive documents. Your readers can interactively explore possibilities, play with parameters, and see the document update immediately. Tangle is super-simple and easy to learn.