shuttle-hq/synth

Health v2 · maintenance only

Adoption not part of the score

1484 stars · 111 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Synth is a declarative data generator written in Rust that produces realistic synthetic test data from a version-controllable data model. It can import schemas from existing databases like Postgres, MySQL, and MongoDB and scale to millions of rows.

Use cases

• generate realistic test data for a new app schema
• seed a database with synthetic data instead of production data
• create synthetic data for integration testing and QA
• generate millions of rows to test database scaling
• infer a data model from an existing Postgres or MongoDB database
• version control test data generation as code

When to choose

• you need realistic, constraint-based synthetic data for development or testing
• you want to avoid using production data in QA
• you need to seed SQL or NoSQL databases at scale
• you want data generation defined declaratively in git

When to avoid

• you need production-grade anonymization of real data rather than synthetic generation
• you only need simple static fixtures or mocks
• you need a GUI-based data generation tool

Facets

cli-tool · maturity active

data-generation testing database etl developer-tools databases testing cli rust windows synthetic-data test-data declarative-data-model postgres mysql mongodb fake-data schema-inference data-engineering linux macos

Member repositories

For agents

markdown · JSON · MCP: product_card(name="shuttle-hq/synth")