Fun & Demos

• Hydra ETL - Declarative YAML ETL engine that can run each transformation step on DuckDB or pandas.

• DuckDB API - a TypeScript-based Docker image containing DuckDB, and a Hono framework REST API with JSON or streaming Arrow responses.
• Mosaic DuckDB Server - A Python-based server that runs a local DuckDB instance and supports queries over Web Sockets or HTTP, returning data in either Apache Arrow or JSON format.
• duckdb-server - A Rust-based server that runs a local DuckDB instance and supports queries over Web Sockets or HTTP/HTTPS, returning data in either Apache Arrow or JSON format.

Web Clients (WebAssembly)

• MyDuck Server - A server wrapping DuckDB with MySQL and PostgreSQL wire protocol support.
• pg_analytics - PostgreSQL extension embedding DuckDB-in-PostgreSQL for fast on-disk and remote object storage analytics from Postgres. Built as a Foreign Data Wrapper with full query pushdown to DuckDB. Integrates easily with ParadeDB.
• pg_duckdb - DuckDB-powered PostgreSQL for high-performance apps & analytics.
• pg_mooncake - A PostgreSQL extension that adds native column store tables with DuckDB.
• GizmoSQL - Arrow Flight SQL Server - A C++ implementation of the [Arrow Flight SQL protocol](https://arrow.apache.org/docs/format/FlightSql.html) that runs in a client-server setup with DuckDB or SQLite as backends.
• Hatch - A Go-based implementation of a DuckDB Arrow Flight SQL Server.
• Termux DuckDB package - DuckDB CLI client for the Termux Android terminal emulator.
• pg_lake - `pg_lake` integrates Iceberg and data lake files into Postgres. Uses DuckDB to execute queries.
• Hatch - A Go-based implementation of a DuckDB Arrow Flight SQL Server.
• AliSQL - A MySQL branch originated from Alibaba Group. Integrates DuckDB as a native storage engine.
• rawquery - Managed analytical platform pairing DuckDB compute with Iceberg storage on S3. Postgres wire protocol, CLI, and Python API.
• VillageSQL - Aggregate Parquet, CSV and JSON in object storage from SQL, with DuckDB embedded in MySQL.
• Layerbase - Managed DuckDB hosting with a browser query console, REST API and CLI, alongside 17 other database engines under one account. Databases scale to zero when idle and wake on connect.

Web Clients (WebAssembly)

• SQL Workbench Embedded - A lightweight JavaScript library that turns SQL code blocks into interactive, browser-based database environments. Powered by DuckDB WASM.
• PondPilot - Open-source, 100% client-side data exploration tool that enables users to analyze local and remote data using SQL. Zero-copy direct access to local datasets sets PondPilot apart from similar tools. It runs entirely in the browser—no servers, no cloud uploads, and no setup required.
• Preswald - WASM packager for Python-based interactive data apps.
• Medama - Self-hostable, privacy-focused website analytics.
• TabulaStudio - Browser-only enterprise data analytics platform with Jupyter-style notebooks, AI-powered visualizations, and enterprise performance (10M+ rows/second). Direct access to files and live databases like (Neon and Supabase ) without servers, cloud uploads, or setup—your data never leaves your browser.
• DuckDB Terminal - Online DuckDB shell powered by DuckDB WASM and Ghostty.
• dbxlite - DuckDB workbench for native & browser.
• Joinery - Privacy-first local data analytics with a modern SQL editor, multi-format support (CSV, Excel, JSON, Parquet), and parameterized saved queries. Available as browser app and Tauri desktop client.
• DuckQuery - Open-source visual SQL workbench to query local files (CSV/Excel/Parquet/JSON) and remote databases (MySQL/PostgreSQL) in one cross-source JOIN, plus AI text-to-SQL. Browser demo runs on DuckDB-Wasm; the full version self-hosts via Docker.
• csvtodashboard - Free SQL-on-CSV in the browser via DuckDB-Wasm — no signup, no upload, files stay on-device.
• TabulaStudio - Browser-only enterprise data analytics platform with Jupyter-style notebooks, AI-powered visualizations, and enterprise performance (10M+ rows/second). Direct access to files and live databases like (Neon and Supabase ) without servers, cloud uploads, or setup—your data never leaves your browser.
• Bedevere - Tabular data visualizer and DuckDB SQL editor on DuckDB-Wasm: open CSV/Parquet/JSON/Arrow locally, chart results with a grammar-of-graphics `VISUALIZE` syntax, and embed it anywhere via npm component or a one-line iframe.
• ParquetKit - Browser-based Parquet viewer, SQL workbench and converter powered by DuckDB-Wasm. Fully client-side — files never leave your device.
• QuackDB - Open-source in-browser DuckDB SQL playground and editor.
• Duck-UI - Duck-UI is a web-based interface for interacting with DuckDB with a SQL editor, data import/export, data explorer, query history, theme toggle and keyboard shortcuts.
• Telemetry SQL Playground - Browser-based, read-only SQL playground powered by DuckDB-Wasm, with synthetic structured-event datasets.
• ExploreMyData - Browser-based data explorer on DuckDB-Wasm: open CSV, Excel, JSON, Parquet, Arrow, Avro, SQLite and DuckDB files up to 1GB, chain filter/join/pivot/aggregate steps that each emit DuckDB SQL, write SQL directly, chart, and export. Files never leave the device.
• DBConvert Parquet Viewer - Browser-based Parquet viewer on DuckDB-Wasm. Reads the schema, row groups, compression codecs and column statistics, runs read-only SQL over the file and exports results as CSV. A [JSONL/NDJSON viewer](https://streams.dbconvert.com/jsonl-viewer) uses the same engine. Files are opened through a browser file handle and are not uploaded.
• Parquetly - Browser-based Parquet viewer on DuckDB-Wasm. Shows the schema, row groups and column chunk statistics, runs SQL over the file, and exports to CSV or JSON. Files are read locally and are not uploaded.
• ParquetKit - Browser-based Parquet viewer, SQL workbench and converter powered by DuckDB-Wasm. Fully client-side — files never leave your device.
• Parquetly - Browser-based Parquet viewer on DuckDB-Wasm. Shows the schema, row groups and column chunk statistics, runs SQL over the file, and exports to CSV or JSON. Files are read locally and are not uploaded.

[Community Extensions](https://duckdb.org/community_extensions/)

• `bigquery` - Integrates DuckDB with Google BigQuery, allowing direct querying and management of BigQuery datasets.
• `chsql` - ClickHouse SQL Dialect macros for DuckDB.
• `duckherder` - Distributed execution for DuckDB queries.
• `duckpgq` - Add supports for SQL/PGQ (Property Graph Queries) introduced in the SQL:2023 standard.
• `evalexpr_rhai` - Evaluates the [Rhai](https://rhai.rs) scripting language as part of SQL.
• `fuzzycomplete` - Performs fuzzy string matching for autocompletion.
• `gsheets` - Read and write Google Sheets using SQL.
• `h3` - Adds support for the H3 discrete global grid system.
• `httpserver` - DuckDB HTTP API Server and Query Interface.
• `lindel` - Linearization/Delinearization, Z-Order, Hilbert and Morton Curves.
• `netquack` - Parsing, extracting, and analyzing domains, URIs, and paths with ease.
• `prql` - Run PRQL commands directly within DuckDB.
• `scrooge` - A set of aggregation functions and data scanners on financial data.
• `shellfs` - Allows shell commands to be used for input and output.
• `ulid` - ULID data type for DuckDB. A ULID is similar to a UUID except that it also contains a timestamp component.
• `cache_httpfs` - Adds a read caching layer to duckdb filesystem to improve query performance and reduce egress cost.
• `3fs` - Integrates DuckDB with DeepSeek 3FS distributed file system.
• `acp` - Embeds AI agents such as Claude Code inside of DuckDB via Agent Client Protocol.
• `yardstick` - Implements Measures in SQL paper as a DuckDB extension for centralized metric definitions / en embedded semantic layer.
• `curl_httpfs` - Enhanced HTTP file system with connection pooling, HTTP/2 support, and asynchronous I/O operations.
• `observefs` - I/O observability for DuckDB filesystems with latency statistics and external file cache access insights.
• `infera` - A DuckDB extension for in-database inference.
• `gaggle` - A DuckDB extension for working with Kaggle datasets.
• `onager` - A DuckDB extension for graph data analytics.
• `elasticsearch` - Query Elasticsearch indices directly using SQL.
• `cache_prewarm` - A Preloads table data blocks into the buffer pool or OS page cache, inspired by PostgreSQL's pg_prewarm extension.
• `dash` - Fully local data canvas and dashboarding app within DuckDB.
• `hostfs` - Navigate and explore the local filesystem using SQL.
• `pfc` - Read block-indexed PFC-compressed JSONL logs with timestamp filtering — 25% smaller than gzip with minimal S3 egress.
• `pst` - Read Microsoft PST files in-place with rich schemas for emails, contacts, appointments, tasks, and more.
• `stats_duck` - Statistics for tabular and clinical data: descriptive tables (`table_one`), linear models with robust/clustered standard errors, meta-analysis, bootstrap, and a grammar-of-graphics `VISUALIZE` clause that turns queries into Vega-Lite charts.
• `gpudb` - GPU-accelerated plain DuckDB SQL on Apple Silicon Metal and NVIDIA CUDA: GROUP BY, joins, filters and top-k run on the GPU when measured faster, with the same answers.
• `query_condition_cache` - Caches query conditions to improve performance for repeated-query workloads.

[Core Extensions](https://duckdb.org/docs/stable/core_extensions/overview)

• `arrow` - A zero-copy data integration between Apache Arrow and DuckDB.
• `avro` - For reading Avro files.
• `ducklake` - For DuckLake support.
• `aws` - For handling AWS credentials.
• `json` - For reading and writing JSON data.
• `parquet` - For reading and writing Parquet data.

Extension Statistics

• DuckDB Extension Radar - Repository that contains DuckDB extensions on GitHub. Refreshed daily.
• DuckDB extension weekly downloads - Statistics of weekly downloads for core extensions and community extensions. Refreshed daily.

Other Extensions

• duckdb_engine - SQLAlchemy driver for DuckDB.
• duckdb-extension-template-zig - A Zig & Nix toolkit template for building extensions against multiple versions of DuckDB using Zig, C or C++.
• duckdb-jfr-extension - DuckDB extension to read JFR (Java Flight Recorder) files directly.
• duckdb_protobuf - Plugin for querying encoded protobuf messages (both sequences and individual messages per file).
• duckdb-pytables - DuckDB extension to allow running SQL on arbitrary data sources.
• Lance - Integrate Lance (modern columnar data format for ML implemented in Rust) with DuckDB.
• ODBC Scanner DuckDB Extension - DuckDB extension to read data directly from databases supporting the ODBC interface.
• QDuckDB - Plugin for reading DuckDB spatial tables in QGIS software.
• UC Catalog Extension - Proof-of-concept extension combining the `delta` extension with Unity Catalog.
• FlockMTL - Integrate language model (LLM) capabilities directly into your queries and workflows.
• ERPL Web - ERPL Web is a DuckDB extension that connects API-based ecosystems via standard interfaces like OData, GraphQL, and REST.
• quack-zig - The infamous DuckDB quack extension rewritten in C and built with Zig. Proof that you can develop DuckDB extensions without drowning in boilerplate.
• Lance - Integrate Lance (modern columnar data format for ML implemented in Rust) with DuckDB.
• DuckDB.ExtensionKit - Build native DuckDB extensions in C#.
• template-duckdb-extension-zig
• go-duckfs - A Go library that mounts `io/fs` file systems as DuckDB virtual file systems, sandboxing all I/O through the Go runtime.
• Lance - Integrate Lance (modern columnar data format for ML implemented in Rust) with DuckDB.

Web Clients

• Official Extensions - Official DuckDB extensions.
• `postgres_scanner` - Allows DuckDB to directly read data from a running Postgres instance.
• `spatial` - Enables geospatial processing.
• `sqlite_scanner` - To read and write to SQLite databases.
• `mysql` - To read from and write to MySQL databases.
• `postgres` - To read from and write to PostgreSQL databases.
• `sqlite` - To read from and write to SQLite databases.
• ERPL - DuckDB SAP connector using RFC, ODP, or BICS.
• `vss` - Add support for vector similarity search.
• Kùzu - Scan DuckDB tables in Kùzu, an embeddable property graph database management system.
• Official Extensions - Official DuckDB extensions.
• `fts` - To support full text search.

• Lance - Integrate Lance (modern columnar data format for ML implemented in Rust) with DuckDB.

Web Clients

• data load tool - DuckDB destination - Extract and load data from APIs to DuckDB using dlt.
• target-duckdb - Load data to DuckDB based on Singer spec.
• Kestra DuckDB plugin - Run queries with DuckDB to schedule data transformations and process automations, and run event-driven anomaly detection pipelines.
• nodbi - NoSQL Database Connector for R, providing a common API across Elasticsearch, CouchDB, MongoDB, SQLite, PostgreSQL, and DuckDB.

Web Clients (WebAssembly)

• SQLFlow - Enables SQL-based stream processing, powered by DuckDB.
• nf-sqldb - This plugin provides support for interacting with SQL databases in Nextflow scripts.
• MindsDB - The platform for customizing AI from enterprise data. [MindsDB integrates with DuckDB](https://docs.mindsdb.com/integrations/data-integrations/duckdb), making data from DuckDB accessible to a diverse range of AI/ML models.
• sqlite2duckdb - A CLI tool to convert SQLite database to DuckDB.
• duckplyr - Drop-in replacement for dplyr in R that uses DuckDB for performance.
• kwack - In-Memory Analytics for Kafka using DuckDB.
• xlDuckDb - Excel addin to run DuckDB queries in Excel.
• Hasura DuckDB Connector - Allows connecting to a DuckDB database or a MotherDuck-hosted DuckDB database through a GraphQL API.
• Ontop - Allows to create Virtual Knowledge Graphs directly from DuckDB.
• The Quack is Back: SAS/ACCESS Meets DuckDB - SAS/ACCESS engine support for DuckDB.
• duckdb-teradata - Teradata connector.
• Kotlin DataFrame - Supports reading from DuckDB databases using JDBC.
• Sidemantic - A semantic layer with DuckDB integration.
• duckdb-tableau-connector - DuckDB Tableau connector.
• metabase_duckdb_driver - Metabase DuckDB Driver shipped as 3rd party plugin.
• duckdb-power-query-connector - DuckDB Power Query Custom Connector.
• dbt-duckdb - DuckDB dbt adapter.
• Cloudflare R2 Data Catalog connector - Connect to Cloudflare R2 Data Catalog with DuckDB.
• Enrich.sh - Lightweight event ingestion that stores JSON events as Parquet in R2, queryable directly from DuckDB.
• DuckDB VBA - Excel/VBA integration for DuckDB using the native C API through a lightweight DLL bridge. Supports Range/Array ingestion, dictionary lookups, Parquet/CSV/JSON workflows, SQLite/PostgreSQL connectivity, and Access-to-DuckDB migration.
• OrionBelt Semantic Layer - Open-source semantic sidecar that compiles YAML semantic models to optimized SQL across 8 engines including DuckDB. Ships with an `ob-duckdb` driver, REST + Arrow Flight SQL + Postgres wire surfaces, and a baked-in DuckDB quickstart on Colab.
• Enrich.sh - Lightweight event ingestion that stores JSON events as Parquet in R2, queryable directly from DuckDB.
• DuckDBExcelAddin - Native Excel XLL add-in for DuckDB with parameter binding, async execution and Excel range table functions.
• Bruin - Data pipeline CLI that runs SQL and Python transformations with built-in quality checks, using DuckDB as one of its supported platforms.
• ingestr - CLI tool to copy data between databases and SaaS sources, with DuckDB supported as both a source and a destination.
• omniload - Polyglot data loader for ETL, warehousing and more, based on dlt. Supports 140+ source/destination adapters. Derived from ingestr v0 (MIT).
• Scherlok - Data quality monitoring CLI that profiles tables and detects anomalies (volume, freshness, schema drift, NULL rates, distributions) without configuration; DuckDB is one of its connectors and backs its built-in demo.

• Airbyte DuckDB destination - Load data to DuckDB with Airbyte.

Fun & Demos

• Vane - A multimodal-native engine for AI workloads, built on a DuckDB fork with Python and SQL interfaces.

Web Clients

• PyGWalker - A Pyhon library that turns your dataframe into an interactive UI for data visualization.
• pg_lakehouse - PostgreSQL extension embedding DuckDB-in-Postgres for fast on-disk and remote object storage analytics from Postgres. Built as a Foreign Data Wrapper with full query pushdown to DuckDB.

• Mosaic - An extensible framework for linking databases and interactive views.
• Fugue - A unified interface for distributed computing. Fugue executes SQL, Python, Pandas, and Polars code on Spark, Dask and Ray without any rewrites.
• Simple-data-analysis - Easy-to-use and high-performance JavaScript library for data analysis.
• duckdb_fdw - DuckDB Foreign Data Wrapper for PostgreSQL.
• @jetblack/duckdb-react - A context manager for React and DuckDB-Wasm.
• QuackOSM - A Python library for downloading and transforming raw OpenStreetMap data into GeoParquet files.
• flapi - An API Framework that heavily relies on the power of DuckDB and DuckDB extensions. Ready to build performant and cost-efficient APIs on top of BigQuery or Snowflake for AI Agents and Data Apps.
• smallpond - A distributed data processing framework by DeepSeek built on DuckDB and 3FS.
• BemiDB - PostgreSQL read replica optimized for analytics, using DuckDB.
• jsqltranspiler - Rewrite BigQuery, Redshift, Snowflake and Databricks queries into DuckDB-compatible SQL.
• SQLRooms - An open-source react framework for single-node data analytics powered by DuckDB.
• Omilayers - A Python library for efficient data management that wraps the APIs of SQLite and DuckDB and offers a high-level interface analytical tasks that involve fast storage, processing and retrieval of data.
• Unleasharp.DB.DuckDB - Lightweight DuckDB query-building client for C#.
• Narwhals - Lightweight and extensible compatibility layer between dataframe libraries, supports DuckDB.