Flask is a microframework for Python based on Werkzeug, Jinja 2 and good intentions.

The goal of TwUI is to build a high-quality UI framework designed specifically for the Mac.

An in-depth tutorial, which iterates on a "hello world" flatiron server (like those in the project's examples) into a relatively complex webservice that uses some of flatiron's more complex functionality.

This is a port of the QuickCheck probabilistic unit testing concept to JavaScript.

Free open source full-stack framework for rapid development of fast, scalable, secure and portable database-driven web-based applications. Written and programmable in Python.

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

The goal: a 5-10k library that handles most basic drudge work with a nice API so you can concentrate on getting stuff done.

Zepto's primary focus is on mobile devices, where small file sizes and tapping into the latest browser features matter most for fast loading and optimal runtime performance.

restify is a node.js module built specifically to enable you to build correct REST web services. It borrows heavily from express (intentionally) as that is more or less the de facto API for writing web applications on top of node.js.

High performance, high class web development for Node.js.

Bootstrap is a toolkit from Twitter designed to kickstart development of webapps and sites.
It includes base CSS and HTML for typography, forms, buttons, tables, grids, navigation, and more.

 Ø  The socket library that acts as a concurrency framework.
 Ø  Faster than TCP, for clustered products and supercomputing.
 Ø  Carries messages across inproc, IPC, TCP, and multicast.
 Ø  Connect N-to-N via fanout, pubsub, pipeline, request-reply.
 Ø  Asynch I/O for scalable multicore message-passing apps.
 Ø  Large and active open source community.
 Ø  30+ languages including C, C++, Java, .NET, Python.
 Ø  Most OSes including Linux, Windows, OS X.
 Ø  LGPL free software with full commercial support from iMatix.

Pyramid is a very general open source Python web framework. As a framework, its primary job is to make it easier for a developer to create an arbitrary web application. The type of application being created isn’t really important; it could be a spreadsheet, a corporate intranet, or an “oh-so-Web-2.0” social networking platform. Pyramid is general enough that it can be used in a wide variety of circumstances.

Kanso is a framework for creating web applications which run on CouchDB. You don't need anything else in your stack, meaning apps are easy to deploy and easy to distribute.

Connect is a middleware framework for node, shipping with over 11 bundled middleware and a rich choice of 3rd-party middleware.

Bulbs is an open-source Python persistence framework for graph databases and the first piece of a larger Web-development toolkit that will be released in the upcoming weeks.

It’s like an ORM for graphs, but instead of SQL, you use the graph-traveral language Gremlin to query the database.

You can use it to connect to any Blueprints-enabled database, including TinkeGraph, Neo4j, OrientDB, Dex, and OpenRDF (and there is an InfiniteGraph implementation in development).

You can use Bulbs from within any Python Web-development framework, including Flask, Pyramid, and Django.

Compojure is a small, open source web framework for the Clojure programming language.

Webmachine is an application layer that adds HTTP semantic awareness on top of the excellent bit-pushing and HTTP syntax-management provided by mochiweb, and provides a simple and clean way to connect that to your application's behavior.

Spine is a lightwork framework for building JavaScript web applications. Spine gives you a MVC structure and then gets out of your way, allowing you to concentrate on the fun stuff, building awesome web applications.

A unified user interface system across all popular mobile device platforms, built on the rock-solid jQuery and jQuery UI foundation. Its lightweight code is built with progressive enhancement, and has a flexible, easily themeable design.

HTML5 Boilerplate is the professional badass's base HTML/CSS/JS template for a fast, robust and future-proof site.
After more than two years in iterative development, you get the best of the best practices baked in: cross-browser normalization, performance optimizations, even optional features like cross-domain ajax and flash. A starter apache .htaccess config file hooks you the eff up with caching rules and preps your site to serve HTML5 video, use @font-face, and get your gzip zipple on.

Node's goal is to provide an easy way to build scalable network programs.

TileStache is a Python-based server application that can serve up map tiles based on rendered geographic data.

Pyjamas is a Rich Internet Application (RIA) Development Platform for both Web and Desktop.

It contains a Python-to-Javascript compiler, an AJAX framework and a Widget Set API. Pyjamas started life as a Python port of Google Web Toolkit, the Java-to-Javascript compiler.

Blueprint is a CSS framework, which aims to cut down on your development time. It gives you a solid foundation to build your project on top of, with an easy-to-use grid, sensible typography, useful plugins, and even a stylesheet for printing.

Discover a clean alternative to bloated enterprise Java stacks. Play focuses on developer productivity and targets RESTful architectures.

A framework for performing and analyzing split-test experiments in Django applications.

A mini-framework for Django for creating RESTful APIs.

Haystack provides modular search for Django. It features a unified, familiar API that allows you to plug in different search backends (such as Solr, Whoosh, etc.) without having to modify your code.

Concurrence is a framework for creating massively concurrent network applications in Python.

Cappuccino is an open source framework that makes it easy to build desktop-caliber applications that run in a web browser.

CherryPy is a pythonic, object-oriented HTTP framework.

Pylons combines the very best ideas from the worlds of Ruby, Python and Perl, providing a structured but extremely flexible Python web framework.

Persevere is an open source set of tools for persistence and distributed computing using an intuitive standards-based JSON interfaces of HTTP REST, JSON-RPC, JSONPath, and HTTP Channels.

Flower is a new kind of user programmable web service, especially well suited for applications which process, store, and query XML data sets.

Mjt makes it very simple to take data from a web service and format it in a browser, with no server support. The templates are hosted and delivered as static HTML, and they are compiled and applied entirely in Javascript.

CodeIgniter is a powerful PHP framework with a very small footprint, built for PHP coders who need a simple and elegant toolkit to create full-featured web applications.