Apache Superset — #2 Alternative to Tableau / Looker
Cloud-native Apache-2.0 enterprise BI and SQL IDE born at Airbnb for petabyte scale
Features 40+ visualization types, a tabbed asynchronous SQL Lab IDE, Jinja templating, granular role-based access, and zero proprietary seat gates.
License: Apache-2.0 · Pricing: Free & Open Source · Compare all Tableau / Looker alternatives · Official Website