The Explore page lets you run SQL directly against the latest GCD snapshot without installing anything. Queries run entirely in your browser via DuckDB WASM — only the Parquet columns your query touches are downloaded.

The gcd-etl project builds a denormalized Parquet snapshot for each GCD data dump using a Python/pyarrow pipeline. A self-hosted Redash instance backed by DuckDB provides a front-end for authoring queries and dashboards.

To get a sense of the types of analysis possible with this dataset, check out these sample queries.

You can learn more about the dataset and see the schema on the about page.

The gcd-etl project previously produced a dataset in the Flamdex format used by Imhotep, an OSS project from Indeed. You can browse the Imhotep sample queries in the SQL-like Imhotep Query Language (IQL) for historical interest.