Open Source PHP Framework (originally from EllisLab)

wallabag is a self hostable application for saving web pages: Save and classify articles. Read them later. Freely.

A self-hosted open source application for managing your invoices, clients and payments.

CSS & JavaScript minifier, in PHP. Removes whitespace, strips comments, combines files (incl. @import statements and small assets in CSS files), and optimizes/shortens a few common programming patt…

Wordpress WP-Pro-Quiz Plugin (Official)

Enables you to display how many times a post/page had been viewed.

Contextual Related Posts WordPress plugin

This plugin counts views for any post type. Compatible with static cache plugins, and also full PHP implementation