WP MVC is a full-fledged MVC framework, similar to CakePHP and Rails, that developers can use inside of WordPress.
Description: An object oriented PHP framework for easily building WordPress plugins and widgets.
poMMo for WordPress is an email list and extendable contact management plugin released on the Top Quark architecture
K2F is a generic framework for Rapid Application Development (RAD) in PHP.
This plugin is for theme developers who want to let their users (site administrators) edit all the strings in the template interface.
A framework to ease up the process of developing new plugins for wordpress.
Easy integration of CodeIgniter functionality into WordPress, making it available for themes and other plugins.
Easy integration of Zend Framework library into WordPress, making it available for themes and other plugins.
Displays version of WooThemes Framework in Right Now dashboard widget. If an update is available a link to the framework update page is displayed and
Adds a single compressed MooTools Core 1.3.2 + Mootools More 22.214.171.124 file to the head of your WordPress template.
Simple Defaults allows you to set some of the more common default items in Genesis Theme Frameworks
Retrive parts of external content and include in blog framework
A plugin development framework with a lot of reusable code and a nice settings page builder.
The Cotton Framework provides a Cross-Browser Standards Compliant XHTML / CSS framework.
A interactive theme editor and theme engine for WordPress.
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