Monitorix review
A free self-hosted choice for Linux server graphs, alerts, and service monitoring.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Monitorix is a free, open-source monitoring tool for Linux and Unix servers, embedded devices, and related infrastructure. It suits administrators who want system graphs and alerts without adopting a paid SaaS product. Its coverage includes system load, processes, memory, uptime, kernel activity, virtual machines through Libvirt, services, hardware sensors, disks, filesystems, network traffic, ports, databases, mail servers, caches, and web servers. Remote Monitorix servers can be aggregated through Multihost.
The platform fits environments built around Linux and open-source server components. It integrates with RRDtool, Libvirt, Apache, Nginx, Lighttpd, Sendmail, Postfix, Exim, MySQL, PostgreSQL, MongoDB, and Redis. Monitorix collects data through a Perl-based daemon and presents graphs through its built-in HTTP server, with optional support for an external web server. Historical graphs support configurable retention and PNG or SVG output, while configurable alerts and email reporting help turn monitoring data into operational notifications. This makes it a practical match for mixed infrastructure where service and component visibility matter alongside basic resource metrics.
Monitorix is distributed as free open-source software rather than as a paid SaaS product, so its value is clearest for teams comfortable managing their own monitoring host and configuration. It provides broad coverage across Linux and Unix systems, but its self-hosted model places more responsibility on the operator than a managed monitoring service would. The published positioning also identifies older-style visualization as a limitation, which may matter to teams seeking a more modern dashboard experience. Choose Monitorix for straightforward server graphing, alerts, and service monitoring with open-source control; consider an alternative if you need a managed platform or a more polished visualization layer.
Monitorix pros and cons
- Where it wins
- Covers system, VM, service, hardware, network, and application metrics
- Supports configurable alerts, email reporting, and historical graphs
- Free and open source with remote-server monitoring through Multihost
- Where it doesn't
- Requires a self-hosted Linux or Unix deployment
- Visualization uses an older-style graphing approach
- Setup may require configuring monitored services and server components
Monitorix fact sheet, pricing and score →
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