Metabase
Self-hostable business intelligence: questions, dashboards, alerts and embeds on the SQL databases you already own.
Business Intelligence
Free self-hostedOpen source · AGPL-3.0
Also offers paid editions — see the detail.
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Self-hosted alternatives to Looker Studio
Entries in our catalogue that can take over from Looker Studio. Each one states why, and links the vendor's own source for the claim.
Why it can replace Looker Studio: Vendor page asks what makes Metabase a good choice compared with Looker Studio. Source