UK Test Data Generator

Generate bulk synthetic UK address data and export it straight into a staging database, a CI fixture or a spreadsheet. Real postcode districts, post towns and counties; fictional buildings and postcodes; no personal data.

Why synthetic data

Copying live customer records into a test environment is processing personal data under the UK GDPR and the Data Protection Act 2018, and a breach in staging is as reportable as one in production. Synthetic data removes the exposure while exercising the same code paths.

Export formats

• JSON — API mocks and fixtures
• CSV and TSV — spreadsheets and bulk import
• SQL — CREATE TABLE and INSERT statements for PostgreSQL, MySQL and SQLite
• XML — legacy integrations
• Envelope text — Royal Mail label layout

Reproducible datasets

Pass a seed parameter and the same request returns byte-identical records on every run, which keeps snapshot tests stable.

Read the REST API documentation or open the address generator.