Matomo (formerly Piwik) is the leading open-source analytics platform that gives you more than just powerful analytics: Matomo aims to be an open source alternative to Google Analytics. Matomo is a PHP MySQL software program that you download and install on your own webserver. At the end of the five minute installation process you will be given a JavaScript tag. Simply copy and paste this tag on websites you wish to track (or use an existing plugin to do it automatically for you).