Icinga
Icinga: A flexible, broad monitoring system for teams comfortable managing self-hosted infrastructure. Ranked #8 of 32 in Infrastructure Monitoring by our editors (8.7/10); pricing: Free plan · 60-day trial; best for open-source teams needing flexible checks.
At a glance
- Editor score8.7 / 10
- PricingFree plan · 60-day trial
- Best forOpen-source teams needing flexible checks
- Free planYes
- Founded2009 · Nuremberg, Germany
- Facts checked23 Sep 2026
Where it wins
- Unlimited hosts and services in the Forever Free Edition
- Agent-based and agentless monitoring across Linux and Windows
- Broad integrations, custom checks, plugins, and REST API automation
Where it doesn't
- Self-hosted deployment adds operational responsibility
- Exclusive enterprise modules require a Module Subscription
- The platform is primarily deployed on Linux
Our verdict on Icinga
Icinga is an open-source infrastructure monitoring system for IT teams managing servers, networks, applications, cloud resources, containers, and virtualized environments. It supports host and service availability checks, server and network monitoring, VMware ESXi and vSphere monitoring, distributed deployments, clustering, notifications, dashboards, and status visualization. Teams can collect data through agents on Linux, Unix, and Windows, or use agentless methods including SNMP, SSH, ICMP, HTTP/HTTPS, and WMI. Its Forever Free Edition is suited to organizations that want broad coverage without host or service limits.
The published plans show a clear progression from free monitoring to commercial services. The Forever Free Edition includes unlimited hosts and services, custom checks and plugins, hybrid infrastructure monitoring, and API and Git-based automation. The Module Subscription adds exclusive Icinga enterprise modules and Dependency Views. The Repository Subscription adds installation packages for Amazon Linux, RHEL, and SLES and includes a 60-day free trial. The Support Subscription adds professional support with 8x5 or 24/7 options, includes repository and module subscriptions, and supports unlimited Icinga hosts. Pricing is region-dependent, so the main distinction is which operational and enterprise capabilities each tier adds.
Icinga fits teams that need an adaptable monitoring foundation rather than a narrow single-environment tool. Prometheus, Grafana, InfluxDB, Elasticsearch, Ansible, Puppet, Terraform, AWS, Azure, NetBox, PagerDuty, Jira, VictorOps, and SIGNL4 integrations support monitoring, automation, visualization, and incident workflows. Custom checks and Nagios-compatible plugins extend its reach, while the REST API supports automation. Choose Icinga when open-source control, flexible checks, distributed monitoring, and broad infrastructure coverage matter most. Teams seeking a hosted deployment or minimal operational ownership should consider an alternative, because Icinga is self-hosted and primarily deployed on Linux.
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Icinga pricing
All 4 Icinga plans and prices →
Icinga fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| Included hosts | Not verified |
| VM monitoring | Yes |
| Service monitoring | Yes |
| Metrics retention | Not verified |
| Deployment model | Self-hosted |
| OS coverage | Multiple |
| Agentless monitoring | Yes |
| Free trial | 60 days |
| Deployment | Self-hosted |
| Platforms | Web, Linux, Windows |
| Support | Email, Phone · 24/7 |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 10 integrations: Grafana, Prometheus, InfluxDB, Elasticsearch, Ansible, Puppet … See all → |
| Pricing | Free plan · 60-day trial (source) |
| Website | icinga.com |
| Facts checked | 23 Sep 2026 |
Icinga integrations
Icinga lists 10 integrations on its own site.
- Grafana
- Prometheus
- InfluxDB
- Elasticsearch
- Ansible
- Puppet
- Terraform
- Jira
- PagerDuty
- ServiceNow
Alternatives to Icinga
- ZabbixA broad monitoring platform with a free self-hosted edition and flexible deployment options.9.4
- CheckmkA broad hybrid-monitoring platform with free open-source coverage and paid automation tiers.9.3
- Datadog Infrastructure MonitoringBroad infrastructure observability for cloud-native teams, with host-based pricing.9.2
Icinga vs the competition
- Icinga vs Zabbix
- Icinga vs Checkmk
- Icinga vs Datadog Infrastructure Monitoring
- Icinga vs Splunk Infrastructure Monitoring
- Icinga vs Google Cloud Monitoring
- Icinga vs SolarWinds Server & Application Monitor
Compare Icinga with any tool side by side →
Also Ranked In
Icinga is ranked in 9 of our directories; the 6 strongest besides Infrastructure Monitoring.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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