The Symfony PHP framework

Open Source PHP Framework (originally from EllisLab)

Slim is a PHP micro framework that helps you quickly write simple yet powerful web applications and APIs.

Doctrine Object Relational Mapper (ORM)

CakePHP: The Rapid Development Framework for PHP - Official Repository

Twig, the flexible, fast, and secure template language for PHP

Yii PHP Framework 1.1.x

PHP library generating PDF files from UTF-8 encoded HTML

Asset Management for PHP

Pyro is an experienced and powerful Laravel PHP CMS.

Vanilla is a powerfully simple discussion forum you can easily customize to make as unique as your community.

PHP Regular expressions made easy

Simple and Lightweight Auth System for CodeIgniter

Basic application with official modules included

Fuel PHP Framework v1.x is a simple, flexible, community driven PHP 5.3+ framework, based on the best ideas of other frameworks, with a fresh start! FuelPHP is now fully PHP 8.0 compatible.

⛔️DEPRECATED CodeIgniter base CRUD model to remove repetition and increase productivity

A CodeIgniter Content Management System

A PHP SQL query builder using PDO

ImageWorkshop is a PHP5.3+ library that helps you to manage images based on GD library

An Options Panel Framework to help speed theme development.

Fuel PHP Framework - The core of the Fuel v1 framework

Core system classes from Kohana

Facebook Graph API, OpenGraph, and Connect for CodeIgniter

Twitter API library for CodeIgniter

Cache Money!

WP Image Resizer & a replacement for Timthumb. Extends and uses the default capabilities of WordPress' Image Editors to add some basic Timthumb capabilities.

Simple flat-file blog engine in PHP

An HTML 5 WordPress Framework

No longer maintained. BambooInvoice is free Open Source invoicing software intended for small businesses and independent contractors. Built on CodeIgniter, its priorities are ease of use, user-inte…

Fuel PHP Framework - Fuel v1.x ORM