A popular free tool. Includes full C source code. Pre-built executables are available for Windows and Mac.

An open source log analyzer. Along with the usual web statistics of pages, hits, also shows busiest hours, a search engine breakout with keywords, robots, and broken links. Works with IIS or Apache using a Perl script, GNU GPL.

A PHP web counter that logs and show each IP address with reverse DNS, operating system, browser, referring URL, visit time and number of visits in a graphical interface. [Open source, GPL]

Perlscript for website logfiles: See the hits for each page graphed over time, with many other useful reports also. GPL.

Analyzes the referer log, detects and evaluates gateways, identifies keywords, and breaks down accesses per document and per referring domain. Written in Perl. [Open Source, GPL]

A Free software oriented company, MaxMind provides freely available databases and APIs called GeoIP, and commercial services, for finding the approximate geographical location of IP addresses. See also Geolizer and AWstats for GPL'd GeoIP-based log analysis.

Merges multiple apache logfiles into one. Site is German.

Allows users on shared hosting plans (who may not have access to site logs) to create site logs. Freeware, but users need permissions for CGI, Perl and SSI.

A fast logfile analyzer for web servers. It creates a comprehensive statistics report in HTML and VRML format. Free for non-commercial use.

Flexible command line shell program for Apache log file analysis.

A logfile analysis program by Jan Winkler.

Develops and maintains Lire, an Open Source reporting and analysis software. Also has a nexus of documentation, ideas, and thought on the topic of log files and their potential applications.

Open Source Log analysis system. Uses Java for some graphic displays.

Specially indicated for a massive virtual hosting environments. Also covering Report Magic customization of results. Well documented.

A modular logfile analyzer which is currently able to parse ftp-, webserver and squid logs. The generated output can be viewed by a webbrowser or a text editor; full template engine for customized output.

Tracks your hits on their server. Free for non-commercial users. Uses counters, popular in europe.

Log analysis tool to visualize the paths most users take when browsing a website. Generates a directed, weighed graph from an apache log. (GNU GPL).

A framework solution for the analysis of website traffic and visitor analysis. Features a logging engine that, either invoked as a web-bug by an HTML <img> tag or embedded with two lines of code in a PHP application, logs each request to a website into a database. One installation of phpOpenTracker can track an arbitrary number of web-sites.

PHP/MySQL logging tool via counters. Open Source, GPL.

A free web-statistics tool for your site. RCounter will help you to monitor your web site traffic, measure online behavior and profile visitors.

A free tracking tool providing instant statistics about visitors. Can also be configured to allow visitors to leave their opinions about a web site. Interesting attempt at proxy IP tracking.

Free analyzer for referrers. Written in PERL, this program recognizes many search engines (current list at the site) and organizes popular keywords used to get to your site. GPL.

Reformatter for Analog output. Its results include tabulated data and graphs. Fonts, colors, and other presentation elements can be customized. Product appears to be GNU, but company sells support, service, customization.

A free Open Source PHP application tracking the visits of Googlebot and many more robots to your site with full statistics in tables and graphs.

A unique combination of rotating banners, page counter and analyzing your web-site

Sherlog is not a statistics generator like Webalizer; instead, focuses on providing a view of visitors' routes on a website.

A collection of free Perl scripts for analyzing web server logs (FTPWebLog, RefStats, BrowserCounter, AccountStats, CookieStats, FavIconTracker), and other web site support tasks (Usenet-Web, HTMLThumbnail, Bookmarker)

A webserver log analyzation tool.

A free open-source image based page tracker. Reporting generates W3C-compliant HTML and PNG images.

An opensource web log analyzer written in ANSI C, available for Unix and Windows. Can perform path analysis and visualization using graphviz.

Setiware log analyzer in Perl. Provides the basic stats, ISP ready, good admin docs and pre-formatted html pages. Very responsive author.

Perl script, keeps track of activity by month, week, day and hour, to monitor total hits, bytes transferred, page views, and most popular pages. Reads NCSA common or combined log files, as well as Microsoft extended format log files. [Open Source, no redistribution]

A log file analysis program for NCSA web server logs, which produces up to twenty different graphical and tabular reports.

The original perl-based log analyzer, under "artistic license". Not updated since 1996.

Open Source tracking system utilizing either PHP files, JavaScript code (web beacon). Planning to include web server's log files. GPL