benerator is a framework for creating realistic and valid high-volume test data, used for testing (unit/integration/load) and showcase setup.
Metadata constraints are imported from systems and/or configuration files. Data can be imported from and exported to files and systems, anonymized or generated from scratch. Domain packages provide reusable generators for creating domain-specific data as names and addresses internationalizable in language and region. It is strongly customizable with plugins and configuration options.