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Best Metrics Monitoring Tools in 2026

Metrics monitoring tools help you work with measurements used to observe services or infrastructure. Compare data ingestion, custom metrics, data retention, and query language, along with SLO tracking, to assess how each option fits your monitoring needs. A self-hosted option, free-plan availability, and the Paid from field offer further points to weigh. The entries include Netdata, Checkmk, and Dynatrace Kubernetes Monitoring, as well as Grafana Cloud Application Observability and InfluxDB. Consider which data you need to collect and retain, how you plan to query it, and which deployment and pricing details matter for your setup.

• 36 apps
• Research read 23 Sept 2026
• How the order is worked out

1. 1

   Checkmk

   Free plan Open source AndroidAPIiPhone+5
   9.2 Free plan · paid from €190/mo (annual) · 30-day trial Visit site
2. 2 N

   Netdata

   Free plan Open source AndroidAPIiPhone+5
   8.8 Free plan · paid from $4.50/mo (annual) · 14-day trial Visit site
3. 3

   Azure Monitor

   Free plan APILinuxMac+2
   7.6 Free plan · 30-day trial Visit site
4. 4

   Amazon Managed Service for Prometheus

   Free plan APISelf-hostedWeb
   7.5 Visit site
5. 5

   Google Cloud Monitoring

   Free plan APILinuxWeb+1
   7.5 Visit site
6. 6

   Amazon CloudWatch Logs

   Free plan APIWeb
   7.4 From $0.50 Visit site
7. 7 C

   collectd

   Free plan LinuxSelf-hostedWindows
   7.4 Open source Visit site
8. 8 G

   Grafana Cloud Application Observability

   Free plan AndroidAPIExtension+5
   7.4 Free plan · paid from $0.03 Visit site
9. 9

   Icinga

   Free plan APILinuxSelf-hosted+2
   7.3 Free plan · 60-day trial Visit site
10. 10

    InfluxDB

    Free plan APILinuxMac+3
    7.3 Free plan · paid from $0.00 · 30-day trial Visit site
11. 11

    groundcover

    by groundcover

    Free plan LinuxSelf-hostedWeb
    7.2 Free plan · paid from $30/mo Visit site
12. 12

    M3

    Free plan APILinuxMac+1
    7.2 Open source Visit site
13. 13

    Nagios XI

    Free plan APILinuxMac+3
    7.2 From $4,995 · 30-day trial Visit site
14. 14 O

    Oracle Log Analytics

    Free plan APILinuxWeb+1
    7.2 Free plan Visit site
15. 15

    Graphite

    Free plan APILinuxSelf-hosted+1
    7.1 Open source Visit site
16. 16

    Prometheus

    Free plan LinuxMacSelf-hosted+2
    7.1 Free plan Visit site
17. 17

    Sematext APM

    Free plan APILinuxSelf-hosted+2
    7.1 From $2.80/mo · 14-day trial Visit site
18. 18 G

    Grafana k6

    by Grafana k6

    Free plan Linux
    7.0 Free plan · 14-day trial Visit site
19. 19

    SigNoz

    Free plan AndroidAPIiPhone+2
    7.0 Free plan · paid from $49/mo · 30-day trial Visit site
20. 20

    VictoriaMetrics

    by VictoriaMetrics

    Free plan APILinuxMac+3
    6.9 Free plan Visit site
21. 21

    Zabbix

    Free plan APILinuxMac+3
    6.9 Free plan · paid from $50/mo · 5-day trial Visit site
22. 22

    PulseBoard

    Free plan LinuxMacSelf-hosted+2
    6.8 Visit site
23. 23 T

    Thanos

    Free plan APILinuxSelf-hosted
    6.8 Open source Visit site
24. 24

    OpenObserve

    Free plan Web
    6.7 Free plan · pricing on request Visit site
25. 25 S

    StatsD

    Free plan LinuxSelf-hosted
    6.7 Open source Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price