PHP

An e-commerce platform built with PHP, jQuery and HTML5. No junk, minimal code, and almost no third party components. Easy to install, extremely easy to use and easy to modify.

Subrion is a PHP/MySQL based CMS and framework that allows you to build websites for any purpose. From blog to corporate mega portal. Many free templates and premium scripts available.

A framework that takes in the XML file generated by Google Calendar and makes it PHP friendly. There are hooks that allow developers to loop through and generate their own themes outputting the necessary HTML.

A simple PHP script that will automagically create a JS/CSS/DHTML powered image gallery when dropped into a directory containing images.

A PHP CMS that uses MySQL, SQLite or PostgreSQL with a simple drag-n-drop page hierarchy. Easily extended with plugins and themes.

PHP implementation for the BitPay cryptographically secure RESTful API.

A petite library of essential encryption functions for PHP 5.3 - 7.1. Block ciphers, stream ciphers, Rivest's ciphers, key derivation, time-safe string comparison and secure random byte generation.

A popular general purpose HTML-embedded scripting language that is especially suited for Web development. Much of its syntax is borrowed from C, Java and Perl with a couple of unique PHP specific features.

Opulence is a PHP web application framework that simplifies the creating and maintaining of a secure, scaleable web site. Things like database management, caching, ORM, page templates and routing are a cinch.

A PHP comment system intended as a replacement for services like Disqus. HashOver is free and open source software and is a self-hosted system and allows completely anonymous comments to be posted.