Grafana is an open-source tool used to visualize data from various data sources. - It presents data in various visual formats such as graphs, charts, tables, and panels. This helps users easily understand and analyze data trends. - It can integrate with various data sources. You can use data from different databases like MySQL, PostgreSQL, Prometheus, InfluxDB, and more. - Users can create their own dashboards and add various chart types to provide a customized visual representation. - Grafana can be used for many purposes, such as monitoring system performance, tracking application health, or analyzing business metrics.