SuperFLOW is a free Chrome add-on designed to enhance the experience of web-based SQL editors, particularly in Apache Superset SQL Lab. This tool allows users to visualize complex SQL queries as logical graphs, making it easier to understand the structure and flow of SQL code. It effectively highlights sources, Common Table Expressions (CTEs), joins, filters, subqueries, outputs, write targets, and column lineage, providing a comprehensive view of SQL dependencies.

The add-on supports features like Script View for inspecting multi-statement worksheets and tracing upstream and downstream dependencies. Users can seamlessly switch between SQL text and the graphical representation. While optimized for Superset, SuperFLOW also accommodates other SQL editors under a read-first approach, enabling analysis through Clipboard or Paste SQL mode when direct access is restricted.