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Open sourceMIT

Open source DuckDB extensions you can use today.

Install them from the DuckDB community repository or build them from source. Read every line, open an issue, send a pull request. The people who wrote the code answer.

DuckDB
INSTALL mssql FROM community;
INSTALL mssql_ducklake FROM community;

-- that is all: no drivers, no setup
3 open source projectsMIT licenceBuilt in Germany
PROJECTS

What you can install now.

PROJECTWHAT IT DOESLICENCESTATUSLINKS
mssqlDuckDB to SQL Server, Azure SQL and Fabric over the native TDS protocol, with query pushdown and bulk loadingMITAvailableDocs · GitHub
mssql_ducklakeDuckLake with its catalog in SQL Server or Azure SQLMITExperimentalDocs · GitHub
hugr classicOne GraphQL API over databases, files and REST services, with an MCP serverMITAvailableDocs · GitHub
MEASURED IN PUBLIC

How it works, and how fast.

ARTICLEFrom 51 seconds to 1 second: DuckDB + SQL Server, 49x fasterARTICLEWhat SQL Server wants from a lakehouse catalog: seven measurementsARTICLEQuerying Azure SQL and Microsoft Fabric from DuckDB with Entra ID
CONTRIBUTE

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