A Mockaroo alternative when you have a schema
Mockaroo is a random data generator with a large type list, saved schemas, Excel, and an API. SchemaSeed starts from the SQL you already wrote. Paste the CREATE TABLE statements and the column types, nullability, CHECK lists, and foreign keys come from that text.
Choose SchemaSeed when
- The schema already exists and you do not want to recreate each column by hand.
- Child rows must reference parent ids that were generated in the same run.
- The INSERT file must match PostgreSQL, MySQL, SQL Server, SQLite, Oracle, or ClickHouse.
- The data should stay in the browser. There is no account and no upload.
- You want a low price: free for one table and 50 rows, $2 for 24 hours, or $7 for a month.
Stay with Mockaroo when
- You need Excel, an HTTP API, or a schema saved in their cloud.
- You want to design columns from scratch with their full type catalog, formulas, and datasets.
Both tools download JSON, CSV, and SQL. SchemaSeed’s SQL changes with the database: backticks for MySQL, brackets and N'' for SQL Server, INSERT ALL for Oracle.