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Head-to-head · Infrastructure Monitoring

Checkmk vs Icinga

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Checkmk #2 in Infrastructure Monitoring 9.3/10 Free plan · 30-day trial Free planFree trial✓ 3 of 3 features Visit Checkmk
Icinga #8 in Infrastructure Monitoring 8.7/10 Free plan · 60-day trial Free planFree trial✓ 3 of 3 features Visit Icinga

Checkmk leads on 0 checks, Icinga on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreCheckmk · 9.3/10
  • Free planboth
  • Free trialboth

Checkmk scores higher on our rubric for infrastructure monitoring: 9.3 against 8.7 out of 10; our editors rank them #2 and #8.

On deployment model, Checkmk gives you Hybrid where Icinga offers Self-hosted.

Checkmk is the better fit for hybrid monitoring with discovery and automation. Icinga is the better fit for open-source teams needing flexible checks.

  • Checkmk fits best

    Hybrid monitoring with discovery and automation

  • Icinga fits best

    Open-source teams needing flexible checks

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Checkmk 9.3/10 Visit ↗ Icinga 8.7/10 Visit ↗
At a glance
Editor score 9.3 8.7
Ranking #2 in Infrastructure Monitoring #8 in Infrastructure Monitoring
Best for Hybrid monitoring with discovery and automation Open-source teams needing flexible checks
Pricing model Free plan + paid Free plan + paid
Starting price €190/mo —
Free plan ✓ ✓
Free trial 30 days 60 days
Free trial length 30 days 60 days
Deployment Cloud, Self-hosted Self-hosted
Platforms Web, Linux, Windows Web, Linux, Windows
Support Community, Tickets, Docs Email, Phone · 24/7
Integrations 2,000+ integrations 10 integrations
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Checkmk 3/3 · Icinga 3/3
VM monitoring ✓ ✓
Service monitoring ✓ ✓
Agentless monitoring ✓ ✓
Specs
Included hosts Not checked yet Not checked yet
Metrics retention Custom Not checked yet
Deployment model Hybrid Self-hosted
OS coverage Multiple Multiple
Our review
Pros
  • Automatic discovery across servers, networks, cloud, and Kubernetes
  • Agent and agentless collection, including SNMP, WMI, IPMI, and Redfish
  • Free Community edition with 2000+ pre-built integrations
  • 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
Cons
  • Paid self-hosted plans start at €190 per month with annual billing
  • Community edition scales to approximately 100 hosts
  • Advanced features and professional support require paid tiers
  • Self-hosted deployment adds operational responsibility
  • Exclusive enterprise modules require a Module Subscription
  • The platform is primarily deployed on Linux
Our verdict

Checkmk is an infrastructure monitoring and observability platform for IT teams managing on-premises, cloud, hybrid, and containerized environments. It discovers hosts and services, collects status and performance data, and provides…

Read the review →

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…

Read the review →
  1. CheckmkInfrastructure Monitoring 9.3Free plan · 30-day trial
  2. IcingaInfrastructure Monitoring 8.7Free plan · 60-day trial

Strengths and trade-offs

  • Checkmk — where it wins

    • Automatic discovery across servers, networks, cloud, and Kubernetes
    • Agent and agentless collection, including SNMP, WMI, IPMI, and Redfish
    • Free Community edition with 2000+ pre-built integrations

    Where it doesn't

    • Paid self-hosted plans start at €190 per month with annual billing
    • Community edition scales to approximately 100 hosts
    • Advanced features and professional support require paid tiers

  • Icinga — 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
  • Checkmk9.3/10 · Free plan · 30-day trial

    A broad hybrid-monitoring platform with free open-source coverage and paid automation tiers.

    Visit CheckmkFull verdict →
  • Icinga8.7/10 · Free plan · 60-day trial

    A flexible, broad monitoring system for teams comfortable managing self-hosted infrastructure.

    Visit IcingaFull verdict →

More comparisons

All infrastructure monitoring comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update