SSN, EIN, and ITIN Generator for Testing

Generate SSN, EIN, and ITIN-style synthetic test values with format-compliant structure for software testing, prototypes, and sample datasets. Runs locally in the browser.

What is this generator?

Generate SSN, EIN, and ITIN values with format-compliant structure for software testing. All values are synthetic and computed locally in the browser.

How to use

Click Generate to get a set of synthetic US tax identifiers.
Click a row or use Copy to bring the values into your test.
Use the data in forms, database seeds, or prototypes.

Synthetic documents

Click Generate to create test values.

Generated values are for software testing, QA, demos, and mock data only.

Practical example

Use the generated values in an automated Playwright test:

// Playwright test
await page.fill('[name="ssn"]', '123-45-6789')
await page.fill('[name="ein"]', '12-3456789')
await page.fill('[name="itin"]', '900-70-0000')

Replace with the values generated by the tool.

API

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

📘 View API Docs

What it's for

🧪

Form testing

Check input masks, validation states, and onboarding flows

🗄️

Sample data

Populate dev databases without using real personal information

✅

Validation checks

Exercise client-side and server-side document rules

🎨

Product demos

Use realistic examples in mockups and stakeholder reviews

Privacy and synthetic data

Generated values are synthetic and intended only for software testing. The tool runs in the browser and must not be used to create real identities, fill official documents, or represent existing people.

Frequently asked questions

Are the generated SSNs real?

No. The values are synthetic, format-compliant for testing purposes but not associated with any real person registered with the SSA.

Can I use these in production?

No. These values are intended exclusively for software development and testing. They do not represent real individuals.

Is the EIN format correct?

Yes, the generated EIN follows the XX-XXXXXXX format used by the IRS and passes standard format validation checks.

When to use

🧪

Testing and QA

Validate inputs, outputs, and UI rules in controlled scenarios.

💻

Development

Use fast browser output while debugging, prototyping, and integrating systems.

📋

Documentation

Create reproducible examples for tickets, specs, and technical reviews.

⚡

Local workflows

Most operations run in the browser with no sign-up and no installation.

Responsible use

Responsible use: generated data is synthetic and intended only for testing, QA, demos, development and documentation. Do not use it to impersonate real people, access third-party services, create real accounts, perform transactions or replace official validations.

Limitations / when not to use

Use this tool for development, QA, documentation, and demos. Do not paste production secrets, private credentials, customer data, or information that should stay inside your controlled environment.