DuckDB meets graph query language

Query Graph data. Right in your browser.

A zero-install graph playground powered by DuckDB, DuckGQL, and WebAssembly. Your queries and data stay on your device.

No setup Local execution Real DuckGQL

Quick start Your first graph query

MATCH (a:airport)-[r:route]->(b:airport)
WHERE a.code = 'ATL'
RETURN a.code AS origin,
       b.code AS destination,
       r.dist AS miles
LIMIT 10;

↵ Paste into the console and press Enter

DuckGQL Console

In-memory DuckDB 1.5.4 Wasm EH

Guided demo Select a step, then use Copy command when you are ready

1 · Create graph

Ready to copy

DROP GRAPH IF EXISTS air_routes;
CREATE GRAPH air_routes ANY;

Keep exploring

More Air Routes queries to try

Complete Create graph and Load graph first. Then copy any query below, paste it into the console, and press Enter.

01 · FILTER + SORT

Longest routes from Atlanta

Find the ten farthest direct destinations served from ATL.

MATCH (origin:airport)-[route:route]->(destination:airport)
WHERE origin.code = 'ATL'
RETURN destination.code AS destination,
       destination.city AS city,
       route.dist AS miles
ORDER BY miles DESC
LIMIT 10;

02 · PROPERTY FILTERS

Routes from the US to Japan

Compare the longest direct airport pairs between two countries.

MATCH (origin:airport)-[route:route]->(destination:airport)
WHERE origin.country = 'US'
  AND destination.country = 'JP'
RETURN origin.code AS origin,
       destination.code AS destination,
       route.dist AS miles
ORDER BY miles DESC
LIMIT 10;

03 · TWO-HOP PATH

Connect Atlanta to London

Discover airports that connect ATL to LHR with one stop.

MATCH (origin:airport)-[:route]->(connection:airport)-[:route]->(destination:airport)
WHERE origin.code = 'ATL'
  AND destination.code = 'LHR'
RETURN connection.code AS connection,
       connection.city AS city
ORDER BY connection
LIMIT 20;

04 · AGGREGATION

Busiest airports by routes

Group route matches to rank airports by outbound connections.

MATCH (origin:airport)-[:route]->(destination:airport)
RETURN origin.code AS airport,
       COUNT(*) AS outbound_routes
GROUP BY origin
ORDER BY outbound_routes DESC
LIMIT 10;

Air-routes sample

3,749 vertices and 57,645 routes

ATL

Atlantaairport · US-GA

ROUTE

AUS

Austinairport · US-TX

Runs locally

The database engine and graph extension execute in a dedicated Web Worker on your device.

Built for the web

The same DuckGQL C++ extension is cross-compiled into a portable WebAssembly module.

About the developer

Rahul Iyer

Developer of DuckGQL, bringing graph query language support and graph analytics to DuckDB.

Email iyer.rahul100@gmail.com GitHub @rahul-iyer LinkedIn Rahul Iyer Project DuckGQL source