DUI generator (El Salvador)
A Salvadoran DUI number is nine digits formatted 00000000-0 — an eight-digit serial and a final check digit whose algorithm is not officially published. These test values are synthetic and format-valid.
Synthetic · not collision-guaranteed Validate a number →
60599267-4
Synthetic DUI (format-valid). The check digit’s algorithm is not officially published.
Format specification
| Identifier | Documento Único de Identidad (DUI) |
|---|---|
| Country | 🇸🇻 El Salvador |
| Format | 00000000-0 |
| Length | 9 characters |
| Checksum | None |
| Example | 72913633-5 |
| Safe strategy | Synthetic |
| Data quality | Best-effort |
Documento Único de Identidad: what each part means
| 00000000 | Eight-digit serial number assigned by the RNPN. |
|---|---|
| 0 | Check digit (algorithm not officially published; test values use a random digit). |
Validation regex
Matches the canonical value — strip separators and uppercase first: value.replace(/[^A-Za-z0-9]/g, '').toUpperCase()
^\d{9}$ References
Common questions
Will these pass my validation?
Yes — they are well-formed Documento Único de Identidad values (00000000-0) and pass standard format checks.
Could one belong to a real person?
These are synthetic values. They are format-valid but not drawn from a guaranteed reserved range, so use them only for testing.
Can I generate many at once?
Increase the count, or use the free API and CSV/JSON export for large datasets.
For software testing only. These numbers are synthetic and must never be used
for real-world identification, applications, or to impersonate anyone.