Chilean RUT Generator with Verifier
Private by design — runs entirely in your browser
A RUT is the Chile tax and identity number used for individuals and businesses. Toova generates syntactically valid RUTs 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
RUT (Rol Único Tributario) is Chile's universal tax and identity number, used for both individuals and businesses. It is a 7-8 digit serial followed by a check digit which may be 0-9 or the letter K. Toova generates RUTs with the correct verifier per the official mod-11 cyclic-weight rule.
How the algorithm works
Walk the serial digits from right to left, multiplying each by a weight that cycles 2, 3, 4, 5, 6, 7, 2, 3, 4 … and sum. Compute r = 11 - (sum mod 11). If r == 11 the check is 0; if r == 10 the check is K; otherwise the check is r. The output is displayed as 12.345.678-K with optional dot-separated thousands.
Frequently Asked Questions
- Are these RUT numbers real?
- No. They satisfy the official algorithm but are not registered in any Chile authority's database. Front-end validators accept them; an official lookup would reject them.
- Can I use a generated RUT in production?
- Only for testing — fixtures, demo screens, form validators. Using a generated RUT to impersonate someone or evade tax law is fraud.
- Why does my validator accept these?
- Because most RUT 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 RUTs I generate?
- No. All generation runs in your browser via crypto.getRandomValues. There are no outbound requests.