Grafana

Grafana is an open-source analytics and monitoring platform for visualizing time-series data through configurable dashboards. It connects to dozens of data sources including Prometheus, InfluxDB, Elasticsearch, PostgreSQL, and cloud monitoring services, presenting metrics in a unified interface with charts, graphs, heatmaps, and alerting capabilities.

The platform works as a visualization layer rather than a data store. You point Grafana at existing data sources, build queries using each source's native query language, and compose panels into dashboards that update in real time. The alerting system triggers notifications through Slack, email, PagerDuty, or webhooks when metrics cross defined thresholds, making it practical for on-call monitoring workflows.

For web development teams, Grafana is valuable for monitoring application performance, server health, deployment metrics, and business KPIs in one place. A typical setup pairs Grafana with Prometheus for infrastructure and application metrics. Teams track request latency, error rates, CPU usage, database query performance, and custom business metrics on shared dashboards that keep developers and stakeholders informed about system health.