Grafana

Grafana is the leading open-source platform for monitoring and observability visualization, providing beautiful, flexible dashboards that connect to virtually any data source. The platform supports Prometheus, InfluxDB, Elasticsearch, CloudWatch, Azure Monitor, and dozens of other data sources. Grafana Labs has expanded beyond visualization to provide a complete observability stack: Grafana Loki for log aggregation, Grafana Tempo for distributed tracing, Grafana Mimir for long-term metrics storage, and Grafana OnCall for incident response. Together, these form the LGTM stack (Loki, Grafana, Tempo, Mimir). Grafana Cloud provides a fully managed observability platform, while Grafana OSS remains free and open source for self-hosted deployments. The platform's plugin ecosystem enables custom data sources, panels, and applications.