There is no simple public checksum to validate issuance from the number alone.
Generate synthetic U.S. passport numbers in numeric format for travel-form tests, simulated KYC and fixtures.
A U.S. passport number is the identifier printed on the travel document issued by the Department of State; current books use nine characters. Unlike Brazil's CPF, CNPJ or CNH, it has no public check digit that would let you recompute it or prove issuance from the number alone. As a result, what most systems validate is length, accepted characters and whether the field is present. A "valid" value here only means it has the expected numeric format, not that a passport, a holder or a trip exists. This tool generates synthetic 9-digit numeric values in the browser as test data for forms, without claiming real issuance.
A U.S. passport number has nine characters. Unlike documents with a modulo-11 rule, there is no simple public check-digit formula that lets you state, from the number alone, whether it was issued. Typical software validation is format and context based.
That is why the tool assumes a synthetic 9-digit numeric format and only discards sequences with all-identical digits. It does not try to imitate a nonexistent checksum or promise that the number will be accepted by official systems.
First case: travel and sign-up forms. Screens that ask for a passport number usually validate length and characters. A synthetic 9-digit value exercises the input and mask without using a real person's passport.
Second case: simulated KYC and fixtures. Sandbox environments and automated tests that involve identity verification need several fictitious documents. Generating plausible numbers in volume keeps tests decoupled from real, sensitive data.
The generated number is fictitious. It must not be used to book travel, cross borders, impersonate anyone or defraud identity processes, using a travel document deceptively is a crime.
Technical limit: with no public checksum and no official lookup, passing a format check says nothing about issuance. Systems tied to the Department of State or verification services reject the number if it does not match a real passport.
Paste the code into your HTML and the tool shows up on your page, without J-Kit's navigation and ads. It still runs in the browser of whoever visits your site.
<iframe
src="https://jkit.tools/embed/en-US/us-passport-number-generator"
width="100%"
height="600"
style="border:0"
loading="lazy"
title="U.S. Passport Number Generator"
></iframe>These references help contextualize formulas, standards, APIs and limitations used on this page. They do not replace professional validation when a result has legal, financial, medical or operational impact.
There is no simple public checksum to validate issuance from the number alone.
Generation happens locally in the browser. Analytics receives only action, status, type and format, never the generated passport number.