Welcome to Seedfast

Seedfast generates realistic synthetic data at any volume — directly into your database.

You need data to develop and test against. Production data is off-limits — it contains real user information, and using it creates compliance risk. Writing fixtures by hand is slow and breaks every time the schema changes.

Seedfast reads your schema and generates realistic data from scratch — no production records involved. Connect your database, describe what you need, and data lands in your tables.

macOS / Linux:

seedfast seed --scope "50 users with orders and invoices"

Windows:

npx seedfast seed --scope "50 users with orders and invoices"

Seedfast resolves table dependencies, satisfies foreign key constraints, and generates domain-aware values automatically. No configuration files, no exports, no dashboards.

• Realistic data — values inferred from your schema, not random placeholders
• Direct DB writes — data goes straight into your tables, local or remote
• Any volume — from a handful of rows to millions, described in plain English
• Secure by design — production data is never used, never at risk

• CLI — seedfast seed (macOS/Linux) or npx seedfast seed (Windows) from any terminal or script
• MCP — seed directly from Claude, Cursor, or VS Code in plain English
• CI/CD — one line in GitHub Actions or GitLab CI, authenticated via API key