Online Spanish ID Generator - Create valid DNIs for testing

The most complete and reliable Spanish ID generator for developers. Generate valid test DNIs, NIFs, CIFs, NIEs and IBAN bank accounts for free.

NEW! NEW! Our REST API for developers is now available. Generate DNIs and other documents directly from your application.

DNI Generator

Generate valid test DNIs instantly. Ideal for:

Application testing
Software development
Form testing
Sample databases

Generate DNI

Bank Account Generator

Create valid IBANs for bank testing:

Spanish and European IBANs
Automatic validation
International format
Multiple countries available

Generate IBAN

API for Developers

Integrate our DNI generator into your application with examples in various languages:

PHP - Generate DNI


// Generate DNI using our API
$api_url = 'https://letradni.info/api/generate.php?type=generador-dni';
$response = file_get_contents($api_url);
$data = json_decode($response, true);
$dni = $data['result'];
echo "Generated DNI: " . $dni;

Python - Generate DNI


import requests

# Generate DNI using our API
url = "https://letradni.info/api/generate.php"
params = {"type": "generador-dni"}
response = requests.get(url, params=params)
dni = response.json()["result"]
print(f"Generated DNI: {dni}")

C# - Generate DNI


// Generate DNI using our API
using (var client = new HttpClient())
{
    var response = await client.GetAsync(
        "https://letradni.info/api/generate.php?type=generador-dni"
    );
    var result = await response.Content.ReadAsStringAsync();
    var dni = JsonDocument.Parse(result).RootElement
        .GetProperty("result").GetString();
    Console.WriteLine($"Generated DNI: {dni}");
}