Redash

Redash is an open-source dashboard and query tool that connects to various databases, from Postgres to big data engines. It features a simple SQL editor with live autocomplete, plus many built-in visualizations. Users can collaborate on queries, annotate charts, and build dashboards with drag-and-drop tiles. Alerting functions notify teams when queries exceed thresholds. Because it’s open-source, Redash can be self-hosted for full control or used via a cloud subscription. Lightweight and developer-friendly, Redash is favored by data-savvy teams wanting flexible SQL-based reporting.