SmarterStats is a web server log processing and reporting tool, that provides in-depth reports for website traffic, visitors, referrers, traffic patterns, search engines and any other detail expected from a comprehensive log analyzer. The program installs as a service that automatically processes your log files in the background and provides a very intuitive web interface that allows you to view the graphical reports for your site(s). SmarterStats enables you to keep long-term statistics without the need for any external database. It uses a proprietary format to store compressed data files for reference, and there is no need to re-process previous log files. The free version does not expire but is limited to a single site with limited features.