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Examples

Each link opens Duck-UI with a public dataset and a query. You see what will load and what will run, and confirm once. The data goes straight from its host to your browser; nothing passes through a server of ours.

Analysis Link
Seattle weather: average high by month open
Dutch train services: busiest stations open
Train stations per country open
Column profile of the stations table open

Add ?load= with the URL of a Parquet, CSV or JSON file (or a .duckdb database) to https://duckui.com/, and optionally &sql= with a query. The file becomes a view named after it: stations.parquet is stations. In the app, Share, then the Badge tab, builds the link and a README badge for you.

The host of the data has to allow cross-origin requests (CORS). Parquet on Cloudflare R2, GitHub Pages or a CORS-enabled bucket works.