Side by side
OpenNMS vs Wazuh
Both stand on alert management software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APILinuxSelf-hosted+1
OpenNMS covers network monitoring across local and remote environments, with Horizon and Meridian serving different release and subscription needs. Consider Horizon’s production-readiness caveat and Meridian’s per-instance subscription limits when selecting a distribution.
Visit OpenNMS Free plan Open source APILinuxMac+3
Wazuh combines security monitoring with response capabilities and integrations for a range of environments. Its compliance mappings can support standards work, but they are not certification; paid plans begin at $571 a month.
Visit WazuhThe facts
| OpenNMS | Wazuh | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Yes |
| Runs on | API, Linux, Self-hosted, Web | API, Linux, Mac, Self-hosted, Web, Windows |
| Lowest paid plan | Basic: $6,000 a year | Small: $571 a month |
| Plans published | 6 | 5 |
| Maker | Not published | Not published |
| Website | opennms.com | wazuh.com |
| On alert management software | #7 of 36 | #3 of 36 |
OpenNMS: what it does well
- Horizon community distribution is free
- Monitors remote devices through Minions
- Supports multiple traffic-flow formats
- Grafana plugin displays alarms, outages, and KPIs
What to know first
- Horizon features may not be production-ready
- 24/7 emergency support costs extra
- Support plans exclude several third-party products
- Meridian subscriptions are limited per instance
Wazuh: what it does well
- Rules flag suspicious activity and policy violations in logs.
- File monitoring tracks changes to content and permissions.
- Vulnerability detection checks software against updated CVE databases.
- Monitors several major cloud services and GitHub.
- Self-hosted open-source plan is free.
What to know first
- Small plan starts at $571 a month.
- Compliance mappings do not certify compliance.
- Agents require an average of 35 MB of RAM.
Alternatives to OpenNMS Alternatives to Wazuh The whole list