CURP Generator for Mexican Test Data
Private by design — runs entirely in your browser
A CURP is the Mexico unique 18-character personal identifier. Toova generates syntactically valid CURPs in your browser — perfect for testing, fixtures, and demo data. The generated values pass front-end validators but are not registered with any official authority.
What it is
A CURP (Clave Única de Registro de Población) is the unique 18-character identifier issued by the Mexican government to every resident. Its 18 characters encode initials from the person's name, date of birth, sex, state of birth, and a check digit. Toova generates syntactically valid CURPs with the correct check digit.
How the algorithm works
The check digit is computed across positions 1-17: each character's value (digits 0-9 → 0-9, letters A-Z → 10-35) is multiplied by a weight from 18 down to 2, summed, and the check digit is (10 - sum mod 10) mod 10. Random initials, state codes, and date components produce a value that passes form validators but is not assigned in RENAPO.
Frequently Asked Questions
- Are these CURP numbers real?
- No. They satisfy the official algorithm but are not registered in any Mexico authority's database. Front-end validators accept them; an official lookup would reject them.
- Can I use a generated CURP in production?
- Only for testing — fixtures, demo screens, form validators. Using a generated CURP to impersonate someone or evade tax law is fraud.
- Why does my validator accept these?
- Because most CURP validators check the mathematical formula (or format for prefix-based IDs), not the registry. Toova's outputs pass the math.
- Does Toova store or log the CURPs I generate?
- No. All generation runs in your browser via crypto.getRandomValues. There are no outbound requests.