Built for High-Fidelity Development
Kopi isn't just a seeder. It's a replication engine designed to give you a database that looks, feels, and behaves like Production—without the liability.
Decaf Mode (Anonymization)
The biggest problem with test data is that it doesn't look real. Apps break because generated names are too long, addresses are invalid, or business logic fails.
Decaf Mode solves this by mirroring your production data while surgically removing PII. It reads real rows, detects sensitive columns, and transforms them deterministically.
- Zero Config: Auto-detects names, emails, phones.
- Consistent: "Mick" always becomes "Arthur".
- Safe: PII is scrubbed in-memory, never written to disk.
Stop Flaky Tests
Random data is great for exploration, but terrible for automated testing.
With Deterministic Seeding, Kopi freezes time. By passing a seed, you guarantee that the exact same data (e.g. names, dates, amounts, and UUIDs) is generated every single time, on every machine.
If a test fails on Tuesday, you can reproduce it perfectly on Wednesday.
Precision Control
Sometimes "Random" isn't enough. Your application logic depends on specific data formats or exact reference tables.
1. Reverse Regex
Need an SKU that matches ^SKU-[A-Z]{3}-\d{3}$? Just put that regex in your config, and Kopi will generate data that passes your strict validation rules.
2. Passthrough Tables
Don't generate fake Countries or Currencies. Tell Kopi to treat them as Reference Data, and it will copy them row-for-row from production.
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