US ZIP Code and Address Generator

What is this generator?

The ZIP Code and Synthetic US Address Generator creates realistic US address data — street, city, state, and ZIP code — distributed by state. Ideal for testing checkout forms, shipping integrations, registration flows, 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 shipping forms, database seeds, or QA scripts.

Practical example

Fill an address form with Playwright using generated data:

await page.goto('https://4devtool.com/us/zip-code-generator/')
await page.click('button:has-text("Generate")')
const zipCode = await page.locator('tr:has-text("Postal code") td:last-child').innerText()
const city = 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('#zipCode', zipCode)
await page.fill('#city', city)
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 ZIP codes and addresses are synthetic and intended only for software testing. ZIP codes follow the 5-digit format but are not validated against USPS records. The tool runs in-browser without storing any data.

Frequently asked questions