Apache Superset
Business Intelligence
Data exploration and BI platform from the Apache Software Foundation: 40+ chart types, SQL Lab and dashboards you host.

Self-hosted means you run the software on infrastructure you control. Some of it is free, some of it is paid — both belong here, and every entry states which one it is.
Every entry shows the price model and the licence of its self-hosted edition.
Business Intelligence
Data exploration and BI platform from the Apache Software Foundation: 40+ chart types, SQL Lab and dashboards you host.
Business Intelligence
Self-hostable business intelligence: questions, dashboards, alerts and embeds on the SQL databases you already own.
Also offers paid editions — see the detail.
Business Intelligence
Self-hosted SQL and NoSQL query editor, visualizations and dashboards, with 35+ data source connectors.
Free and paid, clearly splitEvery entry states the price model of its self-hosted edition. A paid cloud plan never implies the self-hosted edition is paid.
Licence is not priceOpen source, source-available and proprietary are separate facts from what an edition costs, and both are shown.
Unknown stays unknownIf we could not read a price from a vendor source, the entry says so instead of showing a guess.