Nagios Pricing 2026
Plans, hidden costs, and alternatives compared
Cite this data: Toolradar, Nagios pricing verified Sep 2026, toolradar.com/tools/nagios/pricing
Nagios starts at $1,995/month on the XI Standard plan.
Verified Sep 2026 from the official pricing page.
Is Nagios worth the price?
Nagios' pricing model, with a robust free tier and one-time purchase options for commercial versions, is quite generous compared to many subscription-based monitoring tools.
The XI Standard at $1995 offers a solid entry point for small to medium businesses, while the XI Professional at $3495 provides advanced features for larger enterprises. This model is best for organizations looking for a perpetual license rather than ongoing subscription costs.
Pricing Plans
Free TrialCore (Free)
Free
- Open source
- Community support
- Unlimited hosts
XI Standard
$1,995/one-time
- 7 Nodes or 100 Services
- Advanced Reporting
- Custom Dashboards
- Configuration Wizards
XI Professional
$3,495/one-time
- Audit Logging
- Bulk-Modification Tools
- Capacity Planning
- Automated Host Decommissioning
How Nagios compares
6 of 6 direct competitors offer a free plan.
| Tool | Starting price | Free plan |
|---|---|---|
| Nagios | $1,995/month, billing unit not specified | Yes |
| Zabbix | $50/month, billing unit not specified | Yes |
| Prometheus | Free | Yes |
| Datadog | $18/host/month | Yes |
| PRTG | $150/month, billing unit not specified | Yes |
| Icinga | $166.67/month, billing unit not specified | Yes |
| Checkmk | $175/month, billing unit not specified | Yes |
Nagios Pricing FAQ
How much does Nagios cost?
Nagios starts at $1,995/month on the XI Standard plan. It offers 2 paid tiers ranging from $1,995/month to $3,495/month. A free plan is also available.
Does Nagios have a free plan?
Yes. Nagios offers a free plan called "Core (Free)". It includes: Open source, Community support, Unlimited hosts.
Does Nagios offer a free trial?
Yes. Nagios offers a free trial.
What is the cheapest Nagios paid plan?
The cheapest paid plan for Nagios is "XI Standard" at $1,995/month. Key features include: 7 Nodes or 100 Services, Advanced Reporting, Custom Dashboards.
What are alternatives to Nagios?
Alternatives to Nagios include Zabbix, Prometheus, Datadog, PRTG. Prometheus is fully free. Zabbix starts at $50/month, billing unit not specified; Datadog starts at $18/host/month; PRTG starts at $150/month, billing unit not specified.
Nagios alternatives
Direct competitors. Starting prices match the table above.
Sources
- Official Nagios pricing: nagios.org (verified Sep 2026)
- Cite this data: Toolradar, Nagios pricing verified Sep 2026, toolradar.com/tools/nagios/pricing
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