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Documentation
/ Core Extensions
Core Extensions
List of Core Extensions
| Name | Description | Maintainer | Status | Aliases |
|---|---|---|---|---|
| autocomplete | Adds support for autocomplete in the shell | Core team | stable | |
| avro | Add support for reading Avro files | Core team | stable | |
| aws | Provides features that depend on the AWS SDK | Core team | stable | |
| azure | Adds a filesystem abstraction for Azure blob storage to DuckDB | Core team | stable | |
| delta | Adds support for Delta Lake | Core team | experimental | |
| ducklake | Adds support for DuckLake | Core team | experimental | |
| encodings | Adds support for encodings available in the ICU data repository | Core team | experimental | |
| excel | Adds support for reading and writing Excel files | Core team | experimental | |
| fts | Adds support for full-text search indexes | Core team | experimental | |
| httpfs | Adds support for reading/writing files over an HTTP(S) or S3 connection | Core team | stable | http, https, s3 |
| iceberg | Adds support for Apache Iceberg | Core team | experimental | |
| icu | Adds support for time zones and collations using the ICU library | Core team | stable | |
| inet | Adds support for IP-related data types and functions | Core team | experimental | |
| jemalloc | Overwrites the system allocator with jemalloc | Core team | stable | |
| json | Adds support for JSON operations | Core team | stable | |
| motherduck | Allows connecting to MotherDuck | Third party | md | |
| mysql | Adds support for reading from and writing to a MySQL database | Core team | stable | mysql_scanner |
| parquet | Adds support for reading and writing Parquet files | Core team | stable | |
| postgres | Adds support for reading from and writing to a PostgreSQL database | Core team | stable | postgres_scanner |
| spatial | Adds support for working with geospatial data and functions | Core team | experimental | |
| sqlite | Adds support for reading from and writing to SQLite database files | Core team | stable | sqlite_scanner, sqlite3 |
| tpcds | Adds TPC-DS data generation and query support | Core team | experimental | |
| tpch | Adds TPC-H data generation and query support | Core team | stable | |
| ui | Adds local UI for DuckDB | Third party | ||
| vortex | Adds support for reading and writing Vortex files | Third party | ||
| vss | Adds support for vector similarity search queries | Core team | experimental |
The Maintainer column denotes whether the extension is maintained by the core DuckDB team or by a third party.
For the extensions maintained by the core DuckDB team, the Status column shows the lifecycle stage (experimental, stable, deprecated, superseded) following the convention of the lifecycle stages used in tidyverse.
Default Extensions
Different DuckDB clients ship a different set of extensions. We summarize the main distributions in the table below.
| Name | CLI | Python | R | Java | Node.js |
|---|---|---|---|---|---|
| autocomplete | yes | ||||
| icu | yes | yes | yes | yes | |
| json | yes | yes | yes | yes | |
| parquet | yes | yes | yes | yes | yes |
The jemalloc extension's availability is based on the operating system. Please check the jemalloc page for details.
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