Monitoring & metrics

Grafana

grafana/grafana

Popular

Dashboards and visualization for metrics, logs and traces from virtually any data source.

Prometheus

prometheus/prometheus

Popular

CNCF monitoring system and time-series database with pull-based scraping and PromQL.

Datadog

datadoghq.com

Popular

Leading SaaS observability platform unifying infrastructure metrics, APM, logs, RUM and security.

VictoriaMetrics

VictoriaMetrics/VictoriaMetrics

Rising

Fast, resource-efficient Prometheus-compatible time-series database and monitoring stack.

Grafana Mimir

grafana/mimir

Horizontally scalable, multi-tenant long-term storage for Prometheus metrics on object storage.

Thanos

thanos-io/thanos

Adds global querying, high availability and object-storage retention on top of existing Prometheus servers.

New Relic

newrelic.com

SaaS observability platform with APM, infrastructure and logs, usage-based pricing and a free tier.

Dynatrace

dynatrace.com

Enterprise observability with automatic discovery via OneAgent and AI-driven root-cause analysis.

Zabbix

zabbix/zabbix

Mature open-source monitoring for servers, networks and devices using agents, SNMP and templates.

Netdata

netdata/netdata

Per-second, zero-config infrastructure monitoring with auto-generated dashboards and ML anomaly detection.

Perses

perses/perses

Rising

CNCF dashboard tool with dashboards-as-code, built as an open standard for Prometheus-native visualization.

Nagios

NagiosEnterprises/nagioscore

Legacy

Pioneering host and service-check monitoring; still found in older estates, mostly replaced by Prometheus and Zabbix.

node_exporter

prometheus/node_exporter

Exporter for machine metrics