Show HN: BigQuery Emulator – run Google BigQuery locally for tests

Category: devtools

Tags: bigquery, emulator, testing, google-cloud, go

Score: 8.3/10 (Innovation: 8, Technical: 9, Documentation: 8, Utility: 8)

An open-source BigQuery emulator that runs locally using SQLite and a custom GoogleSQL implementation, enabling full development and testing without cloud credentials. It is technically impressive due to its custom query engine and broad feature coverage, while filling a long-standing gap in the BigQuery ecosystem.

Target audience: backend devs, data engineers, devops

Repository: https://github.com/goccy/bigquery-emulator · Go · MIT · 1087 stars

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