The Best Infrastructure Monitoring in 2026
We researched infrastructure monitoring products through their official websites, including pricing pages, plan tables, and product documentation. Rankings reflect each product’s core infrastructure monitoring capabilities, value for money, and verified features across host, virtual machine, operating system, and service health monitoring.
Our top picks
-
Top ranked
Zabbix#1 of 329.4/10A broad monitoring platform with a free self-hosted edition and flexible deployment options.
Free plan
-
Runner-up
Checkmk#2 of 329.3/10A broad hybrid-monitoring platform with free open-source coverage and paid automation tiers.
Free plan · 30-day trial
-
Top-ranked free plan
9.2/10Broad infrastructure observability for cloud-native teams, with host-based pricing.
Free plan · 14-day trial
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.
The full ranking 32 tools, best first
-
Best forBroad, flexible infrastructure monitoring
A broad monitoring platform with a free self-hosted edition and flexible deployment options.
- Agentless monitoring
- VM monitoring
- Service monitoring
9.4/10★★★★★Visit Zabbix -
Best forHybrid monitoring with discovery and automation
A broad hybrid-monitoring platform with free open-source coverage and paid automation tiers.
- Agentless monitoring
- VM monitoring
- Service monitoring
Free plan · 30-day trial Our Checkmk verdict → Visit CheckmkFor vendors Sponsor this spot · #2 · $99/mo →9.3/10★★★★★Visit Checkmk -
Best forCloud-native teams needing observability breadth
Broad infrastructure observability for cloud-native teams, with host-based pricing.
- VM monitoring
- Service monitoring
9.2/10★★★★★Visit Datadog -
Best forCloud teams needing metrics and log context
A metrics-first observability service with dashboards, alerts, Kubernetes monitoring, and contextual logs.
- VM monitoring
- Service monitoring
9.1/10★★★★★Visit Splunk -
Best forGoogle Cloud environments
A broad monitoring service for teams operating primarily in Google Cloud.
- VM monitoring
- Service monitoring
9.0/10★★★★☆Visit Google Cloud -
Best forEnterprise server and application monitoring
A broad monitoring suite for enterprise teams managing hybrid infrastructure.
- Agentless monitoring
- VM monitoring
- Service monitoring
8.9/10★★★★☆Visit SolarWinds -
Best forLow-cost, real-time infrastructure visibility
A low-cost observability platform with per-second metrics and broad infrastructure coverage.
- VM monitoring
- Service monitoring
8.8/10★★★★☆Visit Netdata -
Best forOpen-source teams needing flexible checks
A flexible, broad monitoring system for teams comfortable managing self-hosted infrastructure.
- Agentless monitoring
- VM monitoring
- Service monitoring
8.7/10★★★★☆Visit Icinga -
Best forOpen-source metric collection and querying
A focused open-source choice for collecting, querying, and alerting on metrics.
8.6/10★★★★☆Visit Prometheus -
Best forAgentless hybrid monitoring with topology mapping
Broad agentless monitoring for hybrid infrastructure, cloud resources, services, and topology.
- Agentless monitoring
- VM monitoring
- Service monitoring
8.5/10★★★★☆Visit LogicMonitor -
Best forSmall teams wanting managed server monitoring
Broad infrastructure coverage with an accessible entry plan and expanding costs at higher tiers.
- Agentless monitoring
- VM monitoring
- Service monitoring
8.4/10★★★★☆Visit Site24x7 -
Best forAzure-centric infrastructure teams
A broad Azure monitoring service for metrics, logs, traces, alerts, and hybrid environments.
- Agentless monitoring
- VM monitoring
8.3/10★★★★☆Visit Azure Monitor -
Best forHybrid enterprises needing broad integrations
Broad hybrid monitoring and integrations, with automation extending into the Advanced plan.
- Agentless monitoring
- VM monitoring
- Service monitoring
8.2/10★★★★☆Visit ScienceLogic -
Best forBudget-conscious hybrid infrastructure monitoring
Broad hybrid monitoring at a low entry price, with only one day of metrics retention.
- VM monitoring
- Service monitoring
8.1/10★★★★☆Visit Sematext -
Best forCloud teams needing alerts and anomaly detection
A broad monitoring toolkit with useful anomaly detection and a limited free tier.
- Agentless monitoring
- VM monitoring
- Service monitoring
8.0/10★★★★☆Visit Mackerel -
Best forApplication-centric infrastructure observability
A deep observability platform for teams tracing application performance across infrastructure.
7.9/10★★★★☆Visit eG Enterprise -
Best forSelf-hosted monitoring with classic operations workflows
A broad self-hosted monitoring suite for teams that prefer classic operations workflows.
- Agentless monitoring
- VM monitoring
- Service monitoring
7.8/10★★★★☆Visit Nagios XI -
Best forLightweight Linux process auto-remediation
A focused, free utility for monitoring services and automatically recovering failed processes.
- Service monitoring
7.7/10★★★★☆Visit Monit -
Best forVMware analysis and infrastructure optimization
A VMware-focused assessment platform for infrastructure analysis, planning, and optimization.
- Agentless monitoring
- VM monitoring
7.7/10★★★★☆Visit CloudPhysics -
Best forOCI container image registry users
A capable OCI registry for teams storing, securing, and distributing container images.
7.7/10★★★★☆Visit Oracle Cloud -
Best forAffordable distributed monitoring with automation
Affordable distributed monitoring with discovery, automation, and federation.
- Agentless monitoring
- Service monitoring
7.7/10★★★★☆Visit Sensu Go -
Best forOpen-source Nagios-compatible monitoring
A self-hosted Nagios-compatible monitor with Prometheus, dashboards, reporting, and distributed monitoring.
7.6/10★★★★☆Visit openITCOCKPIT -
Best forSmall teams monitoring mixed servers and services
A broad cloud monitoring platform for small teams managing mixed infrastructure.
- Agentless monitoring
- VM monitoring
- Service monitoring
7.5/10★★★★☆Visit Fivenines -
Best forSelf-hosted capacity and virtualization monitoring
A broad self-hosted monitor for capacity, virtualization, storage, networks and cloud environments.
- VM monitoring
7.4/10★★★★☆Visit XorMon -
Best forDeep self-hosted performance metric analysis
A deep, self-hosted toolkit for live and historical performance metric analysis.
- VM monitoring
- Service monitoring
7.3/10★★★★☆Visit site -
Best forLinux teams needing service maps and eBPF
A free, Linux-focused monitor for teams that need service maps and eBPF visibility.
- VM monitoring
- Service monitoring
7.2/10★★★★☆Visit Gyeeta -
Best forFree self-hosted endpoint and service monitoring
A broad free monitoring stack for teams comfortable running it themselves.
- VM monitoring
- Service monitoring
7.1/10★★★★☆Visit Checkmate -
Best forSimple Linux server graphing and alerts
A free self-hosted choice for Linux server graphs, alerts, and service monitoring.
- VM monitoring
- Service monitoring
7.0/10★★★★☆Visit Monitorix -
Best forBasic Linux metric graphing and thresholds
A focused open-source choice for Linux metrics, graphs, thresholds, and plugins.
- Agentless monitoring
- Service monitoring
6.9/10★★★☆☆Visit Munin -
Best forSelf-hosted OpenTelemetry infrastructure monitoring
A self-hosted, connector-based monitor for infrastructure teams using OpenTelemetry.
- Agentless monitoring
- VM monitoring
- Service monitoring
6.8/10★★★☆☆Visit MetricsHub -
Best forWindows enterprises using management packs
A broad, self-hosted monitoring suite for Windows-focused IT operations.
- Agentless monitoring
- VM monitoring
- Service monitoring
6.4/10★★★☆☆Visit Microsoft -
Best forHybrid fault and topology monitoring
A broad hybrid monitoring platform for faults, topology, services, and virtual environments.
- Agentless monitoring
- VM monitoring
- Service monitoring
5.2/10★★★☆☆Visit Netreo
No tools match those filters.
Compare at a glance
| # | Tool | Free plan | Paid from | VM monitoring | Service monitoring | Deployment model | Score |
|---|---|---|---|---|---|---|---|
| 1 | Zabbix | Yes | €245/mo | Yes | Yes | Hybrid | 9.4 |
| 2 | Checkmk | Yes | €190/mo | Yes | Yes | Hybrid | 9.3 |
| 3 | Datadog Infrastructure Monitoring | Yes | $15/unit/mo | Yes | Yes | Hybrid | 9.2 |
| 4 | Splunk Infrastructure Monitoring | Yes | $15/device/mo | Yes | Yes | Cloud | 9.1 |
| 5 | Google Cloud Monitoring | Yes | Yes | Yes | Cloud | 9.0 | |
| 6 | SolarWinds Server & Application Monitor | No | $2,900 one-time | Yes | Yes | Self-hosted | 8.9 |
| 7 | Netdata | Yes | $4.50/unit/mo | Yes | Yes | Hybrid | 8.8 |
| 8 | Icinga | Yes | Yes | Yes | Self-hosted | 8.7 | |
| 9 | Prometheus | Yes | Free | 8.6 | |||
| 10 | LogicMonitor | No | $16/mo | Yes | Yes | Hybrid | 8.5 |
| 11 | Site24x7 Server Monitoring | Yes | $9/mo | Yes | Yes | Cloud | 8.4 |
| 12 | Azure Monitor | No | Yes | No | Cloud | 8.3 | |
| 13 | ScienceLogic SL1 | Yes | Yes | Hybrid | 8.2 | ||
| 14 | Sematext Monitoring | Yes | $2.80/device/mo | Yes | Yes | Hybrid | 8.1 |
| 15 | Mackerel | Yes | 2,180 JPY/unit/mo | Yes | Yes | Cloud | 8.0 |
| 16 | eG Enterprise | No | $100/mo | Hybrid | 7.9 | ||
| 17 | Nagios XI | Yes | $2,595/unit one-time | Yes | Yes | Self-hosted | 7.8 |
| 18 | Monit | Yes | Free | Yes | Self-hosted | 7.7 | |
| 19 | CloudPhysics | No | Yes | Hybrid | 7.7 | ||
| 20 | Oracle Cloud Infrastructure Container Registry | Yes | 7.7 | ||||
| 21 | Sensu Go | Yes | $3/unit/mo | Yes | Hybrid | 7.7 | |
| 22 | openITCOCKPIT | Yes | 7.6 | ||||
| 23 | Fivenines | No | €15/mo | Yes | Yes | Cloud | 7.5 |
| 24 | XorMon | Yes | Free | Yes | Self-hosted | 7.4 | |
| 25 | Performance Co-Pilot | Yes | Free | Yes | Yes | Self-hosted | 7.3 |
| 26 | Gyeeta | Yes | Free | Yes | Yes | Self-hosted | 7.2 |
| 27 | Checkmate | Yes | Free | Yes | Yes | Self-hosted | 7.1 |
| 28 | Monitorix | Yes | Free | Yes | Yes | Self-hosted | 7.0 |
| 29 | Munin | Yes | Free | Yes | Self-hosted | 6.9 | |
| 30 | MetricsHub | Yes | $15/unit/mo | Yes | Yes | Hybrid | 6.8 |
| 31 | System Center Operations Manager | No | Yes | Yes | Self-hosted | 6.4 | |
| 32 | Netreo | Yes | Yes | Hybrid | 5.2 |
Head-to-head All 28 comparisons →
- Zabbix vs Checkmk
- Zabbix vs Datadog Infrastructure Monitoring
- Zabbix vs Splunk Infrastructure Monitoring
- Zabbix vs Google Cloud Monitoring
- Zabbix vs SolarWinds Server & Application Monitor
- Zabbix vs Netdata
- Zabbix vs Icinga
- Checkmk vs Datadog Infrastructure Monitoring
- Checkmk vs Splunk Infrastructure Monitoring
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How we rank infrastructure monitoring
Every tool on this page was researched by iTechGuides Editors from its official website — pricing pages, plan tables and product documentation. We rank on how well each one does this category's core job, what the free or entry plan includes, and where it falls short. Where we have enough verified facts, the score out of 10 is a rubric — job fit, value and how much we could verify — shown with its breakdown on every tool's page; a tool we have not verified enough to score yet shows its rank without a number. Scores are re-checked when a product changes its plans. Read the full editorial policy, or submit a tool we missed.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update