Open source

I build the extensions that unlock DuckDB.

36 native DuckDB extensions under Query.Farm, plus VGI — a protocol for writing DuckDB functions in any language. Everything here is open source and installable from SQL.

DuckDB extensions

1,770

GitHub stars

2M+

Extension installs

134

VGI workers

Featured

airport

345

Flagship

Query any Arrow Flight server as if it were a DuckDB table.

C++4d ago→

httpserver

284

Turns DuckDB itself into a queryable HTTP API server.

C++2d ago→

shellfs

Pipe shell command output straight into a DuckDB scan.

C++4d ago→

clickhouse-sql

ClickHouse SQL dialect compatibility, inside DuckDB.

C++5mo ago→

httpclient

HTTP GET and POST from SQL, with no external tooling.

C++2d ago→

lindel

Talk subject

Hilbert and Z-order curves for locality-preserving sort keys.

C++4d ago→

openprompt

Prompt an LLM directly from a SQL query.

C++2d ago→

tributary

Read and write Kafka topics from SQL.

C++2d ago→

All DuckDB extensions

airportThe Airport extension for DuckDB, enables the use of Arrow Flight with DuckDB

C++345

httpserverDuckDB HTTP API Server and Query Interface in a Community Extension

C++284

shellfsDuckDB extension allowing shell commands to be used for input and output.

C++95

clickhouse-sqlDuckDB Community Extension implementing ClickHouse SQL Dialect macros and Custom functions for DuckDB

C++91

httpclientDuckDB HTTP GET/POST Client in a Community Extension

C++80

lindelDuckDB Extension Linearization/Delinearization, Z-Order, Hilbert and Morton Curves

C++66

openpromptDuckDB Community Extension to prompt LLMs from SQL

C++60

tributaryA DuckDB Extension for Kafka

C++57

cronjobDuckDB CronJob Extension

C++52

datasketchesIntegrates DuckDB with the high-performance Apache DataSketches library. This extension enables users to perform approximate analytics on large-scale datasets using state-of-the-art streaming algorithms, all from within DuckDB.

C++47

radioRadio is a DuckDB extension by Query.Farm that brings real-time event streams into your SQL workflows. It enables DuckDB to receive and send events over systems like WebSocket and Redis Pub/Sub.

C++43

cryptoDuckDB Extension for cryptographic hash functions and HMAC

C++29

fuzzycompleteDuckDB Extension for fuzzy string matching based autocompletion

C++28

duckdb-cron-extensionDuckDB Cron Expression Extension

Rust28

stochasticA DuckDB extension that add comprehensive statistical distribution functions to DuckDB, enabling advanced statistical analysis, probability calculations, and random sampling directly within SQL queries.

C++26

evalexpr_rhaiA DuckDB extension to evaluate the Rhai scripting language as part of SQL.

C++26

textplotA DuckDB community extension that enables text-based data visualization directly in SQL queries, including ASCII/Unicode bar charts, density plots, and sparklines for lightweight analytics and dashboards.

C++25

geosiloDuckDB extension for compact geometry encoding using delta-encoded coordinates. 3-4x smaller than WKB.

C++25

quackscaleDuckDB WireGuard Extension with Quack & Ducklake over Tailscale, Headscale & Co

Shell22

pyroscopeDuckDB Pyroscope Extension for Continuous Profiling

Rust21

clickhouse-nativeExperimental ClickHouse Native Client and Native file reader Extension for DuckDB chsql

Rust20

rapidfuzzDuckDB Community Extension adding RapidFuzz algorithms for search, deduplication, and record linkage.

C++18

adbc_scannerA DuckDB ADBC Scanner Extension - adds support for using ADBC drivers with DuckDB as a client.

C++18

webmacroDuckDB WebMacro: Share and Load your SQL Macros via gists

C++15

marisaThe Marisa extension by Query.Farm integrates the fast, space-efficient MARISA trie into DuckDB, enabling high-performance string lookups, prefix searches, and autocomplete functionality.

C++14

redisDuckDB Redis Client community extension

C++13

pcapDuckDB PCAP Reader Extension made in Rust

Rust13

hashfuncsA DuckDB extension that supplies non-cryptographic hash functions.

C++12

a5A5 Geospatial Extension for DuckDB

C++12

copilot-extension-duckdbDuckDB Copilot Extension

TypeScript10

inflectorPowerful string case transformation and inflection capabilities directly to your SQL queries.

C++8

bitfiltersA high-performance DuckDB extension providing probabilistic data structures for fast set membership testing and approximate duplicate detection. This extension implements state-of-the-art filter algorithms including Quotient filters, XOR filters, Binary Fuse filters, and soon Bloom filters.

C++8

tsidTSID Extension for DuckDB

C++6

jsonataThe JSONata extension for DuckDB enables expressive, JSON-focused querying and transformation directly within SQL using the powerful JSONata expression language.

C++6

json_schemaA DuckDB extension that bring support for validating JSON data using JSON schemas.

C++3

duckdb-cron-expression-extensionDuckDB Extension for Cron Expressions

Shell

VGI — the Vector Gateway Interface

DuckDB extensions normally have to be written in C++ and compiled for every platform. VGI removes that constraint: implement scalar, table, and aggregate functions in the language you already use, and DuckDB calls them out-of-process over Apache Arrow IPC.

SDKs

PythonGoTypeScriptRustJavaC++

Protocol & SDK repositories

vgi-rpc-python12 vgi-rpc-go2 vgi-rpc-typescript1 vgi-units1 vgi-rpc-rust vgi-rpc-java vgi-rust vgi-java

112 workers

ML, NLP & search25Cloud & connectors23Formats & parsing21Security & forensics19Finance & markets16Utilities4Geospatial4

Browse all 134 VGI repositories →Including the same hello-world function implemented in 5 languages, as a protocol conformance check.

Libraries & other projects

libh3

Uber’s Hexagonal Hierarchical Spatial Index (H3) library in Rust

Rust4y ago→

python-flight-server

A Python framework to build Arrow Flight servers for the DuckDB Airport Extension

Python1y ago→

cloudwatch-log-redirector

CloudWatch Log Redirector

Rust5mo ago→

Archive: 61 more personal projects

quickjs14 tera9 python-airport-test-server5 cloudformation-yasnippet5 libh3-sys4 python-sql-scan-planning3 muid-zero-knowledge-proof3 fair-weather2 python-airport-hello-world2 python-sql-manipulation2 Microprediction2 muid-rust2 query-farm-telemetry-client1 cupola1 python-duckdb-json-serialization1 monteprediction_client_implied_volatility1 arrow-flight-optimized1 muid-node1 deterministic-screenshots-chromium1 microprediction-nyiso-electricity1 MicropredictionHistory1 microprediction-golf-hole-by-hole1 nj511-microprediction1 piedmont-hospital-er-wait-time-microprediction1 airport-ewr-microprediction1 nba-scores-microprediction1 MemorableUniqueIdentifier1 Amazon-DynamoDB1 snacks-report discreture blake3 tomographic-digest memory-passing-speed-benchmark monteprediction-client-v2 microprediction-node emojitracker-microprediction reddit-recorder radio-scanner-analyzer typescript-api-gateway-lambda-base finviz-microprediction nyiso-electricity-models ncep-grib2-definitions microprediction-nyiso-pull microprediction-bots microprediction-stream-logger inbox-queue moore-hilbert moore-hilbert-sys starter-express-typescript typescript-aws-lambda-function rustyconover.github.io aws-rekognition-text-detection-filter vm-ec2-security-credentialcache encode-detective WebService-Intercom amazon-ses vm-ec2-instance-located devel-stacktrace-ashtmlextended Webservice-Amazon-Signature WebService-Validator-HTML-W3C Test-HTML-W3C

Plus 123 forks and upstream contributions — DuckDB, Apache Arrow, and others — on GitHub.