https://www.red-gate.com/products/sql-data-generator/
SQL Data Generator: Generate realistic test data fast
SQL Data Generator is a fast, simple tool for generating realistic test data.
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https://www.mockaroo.com/
Mockaroo - Random Data Generator and API Mocking Tool | JSON / CSV / SQL / Excel
A free test data generator and API mocking tool - Mockaroo lets you create custom CSV, JSON, SQL, and Excel datasets to test and demo your software.
random dataapi mocking