Openstatus

Complete open-source monitoring and observability platform.

Real-time monitoring, slowlog analysis, and audit trails for Valkey and Redis

Nightingale is to monitoring and alerting what Grafana is to visualization.

The Prometheus monitoring system and time series database.

VictoriaMetrics: fast, cost-effective monitoring solution and time series database

Highly available Prometheus setup with long term storage capabilities. A CNCF Incubating project.