#1
Grafana

Grafana

★★★★★ 4.6 Free / $29+ Free plan

Open-source observability and data visualization platform for creating dashboards from multiple data sources including Prometheus, InfluxDB, Elasticsearch, and more.

dashboardsdata-sourcesalertingannotations
✓ Connects to virtually any data source✓ Beautiful and highly customizable dashboards✓ Open-source with massive community
#2
Datadog

Datadog

★★★★★ 4.5 Free / $15+ Free plan

Cloud monitoring and analytics platform providing infrastructure monitoring, APM, log management, and security monitoring for modern cloud-scale applications.

infrastructure-monitoringapmlog-managementsynthetics
✓ Unified platform for metrics, traces, logs, and security✓ 750+ integrations with cloud services and tools✓ Powerful dashboards and alerting system
#3
Prometheus

Prometheus

★★★★★ 4.5 Free Free plan

Open-source monitoring and alerting toolkit designed for reliability and scalability.

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✓ Free and open-source✓ Powerful query language✓ Great Kubernetes integration
#4
PagerDuty

PagerDuty

★★★★ 4.4 Free / $21+ Free plan

Digital operations management platform for real-time incident response.

incident-managementon-call-schedulingescalation-policiesevent-intelligence
✓ Reliable alerting✓ Great escalation policies✓ Many integrations
#5
New Relic

New Relic

★★★★ 4.3 Free / $0.3+ Free plan

Full-stack observability platform offering APM, infrastructure monitoring, log management, browser monitoring, and AI-powered insights with usage-based pricing.

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✓ Generous free tier with 100GB/month data ingest✓ Full-stack observability in one platform✓ Usage-based pricing is cost-effective for many teams

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