UK Postcode and Address Generator

What is this generator?

The UK Postcode and Synthetic Address Generator creates realistic UK address data — street, town, county, and postcode — distributed by region. Ideal for testing checkout forms, delivery flows, registration screens, and database seeds.

How to use

1. Click Generate to create a synthetic address.
2. Click a row or use Copy to carry the values into your test.
3. Use the data in address forms, database seeds, or QA scripts.

Practical example

Fill an address form with Playwright using generated data:

await page.goto('https://4devtool.com/uk/postcode-generator/')
await page.click('button:has-text("Generate")')
const postcode = await page.locator('tr:has-text("Postal code") td:last-child').innerText()
const town = await page.locator('tr:has-text("City") td:last-child').innerText()
const address = await page.locator('tr:has-text("Street") td:last-child').innerText()
await page.fill('#postcode', postcode)
await page.fill('#town', town)
await page.fill('#address', address)

Replace selectors with the real IDs or attributes of your form.

API

For automations, integrations, and pipelines, see the API documentation.

Use cases

Related tools

Privacy and synthetic data

Generated postcodes and addresses are synthetic and intended only for software testing. Postcodes follow standard UK format but are not validated against Royal Mail records. The tool runs in-browser without storing any data.

Frequently asked questions