Free Alternatives: Monitoring & Observability

Datadog alternatives: Grafana, Prometheus, SigNoz, Zabbix and 2 more. Prices and licenses checked October 23, 2026.

PagerDuty alternatives: ilert, incident.io, Better Stack, Grafana and 2 more. Prices and licenses checked October 25, 2026.

Sentry alternatives: GlitchTip, SigNoz, Better Stack, New Relic and 1 more. Prices and licenses checked October 22, 2026.

Best free Uptime Monitors compared: UptimeRobot, StatusCake, Better Stack, OneUptime and 2 more, with free-plan limits, platforms and prices from official pages checked October 23, 2026.

Best open-source Status Page Tools compared: Uptime Kuma, OneUptime, Gatus, Upptime and 2 more, with licenses, platforms and prices from official pages checked October 24, 2026.

Splunk alternatives: Grafana, Elasticsearch, OpenSearch, SigNoz and 1 more. Prices and licenses checked October 23, 2026.

New Relic alternatives: Grafana, SigNoz, Netdata, OneUptime and 2 more. Prices and licenses checked October 22, 2026.

Best free Status Pages compared: Atlassian Statuspage, Instatus, Better Stack, OneUptime and 2 more, with free-plan limits, platforms and prices from official pages checked October 23, 2026.

Best open-source Log Management Tools compared: OpenSearch, Elasticsearch, Grafana Loki, SigNoz and 2 more, with licenses, platforms and prices from official pages checked October 24, 2026.

Grafana alternatives: Prometheus, Zabbix, Netdata, Uptime Kuma and 1 more. Prices and licenses checked October 23, 2026.

Self-hosted Sentry alternatives compared on RAM, licence and SDK support: GlitchTip, Bugsink and SigNoz, against Sentry's own 16 GB requirement.