Firefly III: a personal finances manager

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

Mautic: Open Source Marketing Automation Software.

A lightweight nearly-zero-configuration object-relational mapper and fluent query builder for PHP5.

sabre/dav is a CalDAV, CardDAV and WebDAV framework for PHP

NotORM - PHP library for simple reading data from the database

RESTful PHP library/framework

Privacy-friendly, open-source and lightweight analytics for your WordPress site.

Fuel PHP Framework - Fuel v1.x Authentication package

PHP unit testing framework with built in mocks and stubs. Runs in the browser, or via the command line.

File containing the books of the bible, their chapters and the number of verses in each chapter

Pluf is an open source PHP framework, which is very light and fast.

Copy of PHPExcel to work around dumb license dialog