# Worldwide IDs

> Worldwide IDs generates fake, format- and checksum-valid national and tax ID numbers for software testing. Where a country reserves never-issued ranges, those are used so a value cannot belong to a real person; everything else is clearly labelled synthetic. Generation runs client-side and via a free API. The numbers are for testing only — never for real identification.

Coverage: 47 countries.

## Machine-readable data
- [All identifiers (JSON)](https://worldids.dev/index.json): every country and ID type with format, mask, checksum, and reserved-range info.
- [OpenAPI spec](https://worldids.dev/openapi.yaml): the generate/validate API.
- Per-ID JSON: `https://worldids.dev/{country}/{idType}.json` (e.g. https://worldids.dev/us/ssn.json).

## Key pages
- [Home](https://worldids.dev/): overview and generator.
- [All countries](https://worldids.dev/countries/): browse every country.
- [Validate](https://worldids.dev/validate/): check format and checksum of a number.

## Identifiers by country
- Argentina — Clave Única de Identificación Tributaria: https://worldids.dev/ar/cuit/ (synthetic)
- Australia — Tax File Number: https://worldids.dev/au/tfn/ (synthetic)
- Australia — Passport number: https://worldids.dev/au/passport/ (synthetic)
- Belgium — Rijksregisternummer: https://worldids.dev/be/rrn/ (synthetic)
- Bosnia and Herzegovina — Unique Master Citizen Number (JMBG): https://worldids.dev/ba/jmbg/ (synthetic)
- Brazil — Cadastro de Pessoas Físicas: https://worldids.dev/br/cpf/ (synthetic)
- Brazil — Cadastro Nacional da Pessoa Jurídica: https://worldids.dev/br/cnpj/ (synthetic)
- Brazil — Passport number: https://worldids.dev/br/passport/ (synthetic)
- Bulgaria — Единен граждански номер: https://worldids.dev/bg/egn/ (synthetic)
- Canada — Social Insurance Number: https://worldids.dev/ca/sin/ (reserved)
- Canada — Passport number: https://worldids.dev/ca/passport/ (synthetic)
- Chile — Rol Único Tributario: https://worldids.dev/cl/rut/ (synthetic)
- China — Resident Identity Card number: https://worldids.dev/cn/ric/ (synthetic)
- China — Passport number: https://worldids.dev/cn/passport/ (synthetic)
- Croatia — Osobni identifikacijski broj: https://worldids.dev/hr/oib/ (synthetic)
- Czechia — Rodné číslo: https://worldids.dev/cz/rodne-cislo/ (synthetic)
- Estonia — Isikukood: https://worldids.dev/ee/isikukood/ (synthetic)
- Finland — Henkilötunnus: https://worldids.dev/fi/hetu/ (synthetic)
- France — Numéro de sécurité sociale (NIR): https://worldids.dev/fr/nir/ (synthetic)
- France — Passport number: https://worldids.dev/fr/passport/ (synthetic)
- Germany — Steuerliche Identifikationsnummer: https://worldids.dev/de/steuer-id/ (synthetic)
- Greece — Social Security Number (AMKA): https://worldids.dev/gr/amka/ (synthetic)
- Hong Kong — HKID: https://worldids.dev/hk/hkid/ (synthetic)
- Hungary — Adóazonosító jel: https://worldids.dev/hu/tax-id/ (synthetic)
- Iceland — Kennitala: https://worldids.dev/is/kennitala/ (synthetic)
- India — Aadhaar Number: https://worldids.dev/in/aadhaar/ (synthetic)
- India — Permanent Account Number: https://worldids.dev/in/pan/ (synthetic)
- India — Passport number: https://worldids.dev/in/passport/ (synthetic)
- Israel — Teudat Zehut: https://worldids.dev/il/teudat-zehut/ (synthetic)
- Italy — Codice Fiscale: https://worldids.dev/it/codice-fiscale/ (synthetic)
- Italy — Passport number: https://worldids.dev/it/passport/ (synthetic)
- Japan — My Number (Individual Number): https://worldids.dev/jp/my-number/ (synthetic)
- Japan — Passport number: https://worldids.dev/jp/passport/ (synthetic)
- Latvia — Personas kods: https://worldids.dev/lv/personal-code/ (synthetic)
- Lithuania — Asmens kodas: https://worldids.dev/lt/asmens-kodas/ (synthetic)
- Montenegro — Unique Master Citizen Number (JMBG): https://worldids.dev/me/jmbg/ (synthetic)
- Netherlands — Burgerservicenummer: https://worldids.dev/nl/bsn/ (synthetic)
- North Macedonia — Unique Master Citizen Number (JMBG): https://worldids.dev/mk/jmbg/ (synthetic)
- Norway — Fødselsnummer: https://worldids.dev/no/fodselsnummer/ (synthetic)
- Poland — PESEL: https://worldids.dev/pl/pesel/ (synthetic)
- Portugal — Número de Identificação Fiscal: https://worldids.dev/pt/nif/ (synthetic)
- Romania — Cod Numeric Personal: https://worldids.dev/ro/cnp/ (synthetic)
- Russia — Individual Taxpayer Number (INN): https://worldids.dev/ru/inn/ (synthetic)
- Serbia — Unique Master Citizen Number (JMBG): https://worldids.dev/rs/jmbg/ (synthetic)
- Singapore — NRIC / FIN: https://worldids.dev/sg/nric/ (synthetic)
- Slovakia — Rodné číslo: https://worldids.dev/sk/rodne-cislo/ (synthetic)
- Slovenia — Enotna matična številka občana: https://worldids.dev/si/emso/ (synthetic)
- South Africa — National Identity Number: https://worldids.dev/za/id/ (synthetic)
- South Korea — Resident Registration Number: https://worldids.dev/kr/rrn/ (synthetic)
- Spain — Documento Nacional de Identidad: https://worldids.dev/es/dni/ (synthetic)
- Spain — Número de Identidad de Extranjero: https://worldids.dev/es/nie/ (synthetic)
- Sweden — Personnummer: https://worldids.dev/se/personnummer/ (synthetic)
- Switzerland — AHV/AVS social security number: https://worldids.dev/ch/ahv/ (synthetic)
- Thailand — Thai National ID: https://worldids.dev/th/national-id/ (synthetic)
- Turkey — Türkiye Cumhuriyeti Kimlik Numarası: https://worldids.dev/tr/tckn/ (synthetic)
- Ukraine — Individual Tax Number (RNOKPP): https://worldids.dev/ua/rnokpp/ (synthetic)
- United Kingdom — National Insurance Number: https://worldids.dev/gb/nino/ (synthetic)
- United Kingdom — Passport number: https://worldids.dev/gb/passport/ (synthetic)
- United States — Social Security Number: https://worldids.dev/us/ssn/ (reserved)
- United States — Individual Taxpayer Identification Number: https://worldids.dev/us/itin/ (synthetic)
- United States — Employer Identification Number: https://worldids.dev/us/ein/ (synthetic)
- United States — Passport number: https://worldids.dev/us/passport/ (synthetic)