Google Analytics - Improve your website to increase conversions, improve the user experience, and make more money using Google Analytics. Measure, understand and quantify engagement on your site with customized and in-depth reports.
AWStats - AWStats is a Open Source Web Analytics software written in Perl.
Clicky - Clicky Web Analytics is a simple way to monitor, analyze, and react to your blog or web site's traffic in real time.
GoAccess - Open source real-time web log analyzer and interactive viewer that runs in a terminal in *nix...
Matomo - Matomo is an open-source web analytics platform
Open Web Analytics - Open Web Analytics - Web Analytics – Open Source Web Analytics Framework