Webalizer review
A free, configurable log analyzer for teams that need HTML reports from server logs.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Webalizer is a free, GPL-licensed program that turns web server, FTP, proxy, and W3C log files into configurable HTML usage reports. Its audience is technical users and administrators who can work with logs and command-line tools, especially in legacy environments where server activity reports are the main requirement. Reports can break statistics down by time period, site, URL, referrer, browser, search string, entry and exit page, and country. It runs from a Unix command line or as a scheduled job, with platform listings that include Linux, macOS, Windows, and self-hosted use.
Its log-processing range is a notable strength for systems that produce different file types. Webalizer supports CLF, NCSA Combined, FTP, Squid, and W3C formats, can read gzip-compressed logs and optionally bzip2-compressed logs, and can incrementally process rotated or partial logs. Configuration files and command-line options let administrators adjust processing and reports. Reverse DNS lookups support IPv4 and IPv6, while geolocation uses native GeoDB or optional GeoIP lookups. Multiple report languages are also available. These capabilities suit an established log workflow better than teams seeking a visual, event-centered analytics setup.
Webalizer is open source and free, rather than organized around paid plan tiers. Its focus is also its main trade-off: it produces reports from logs, but is not positioned for event, funnel, session, or ecommerce analytics, and no API capability is identified. The official site lists stable version 2.23-08 and was last modified in 2014, a relevant maintenance signal for teams assessing fit with current environments. Choose Webalizer when you need a no-cost, configurable way to turn existing logs into HTML reports; consider a different analytics product if your work depends on user-event analysis or ecommerce measurement.
Webalizer pros and cons
- Where it wins
- Generates graphical and columnar HTML usage reports
- Handles several server, FTP, proxy, and W3C log formats
- Supports compressed logs and incremental processing
- Where it doesn't
- Requires command-line or scheduled-job operation
- Focuses on log-file reports rather than event-based analytics
- The official site lists a stable version last modified in 2014
Webalizer fact sheet, pricing and score →
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