CURP Generator: Free Online Tool for Testing & Development

What is a CURP Generator?

A CURP generator is an essential tool for developers and testers working with Mexican identification systems. The CURP (Clave Única de Registro de Población) is Mexico's unique alphanumeric identification code used for official purposes. Our free CURP generator creates valid, random CURPs that comply with official Mexican format and validation rules, making it perfect for software testing, data privacy protection, and development scenarios.

Important: All generated CURPs are random and not tied to real individuals. Use only for testing and development purposes.

How to Use the CURP Generator

Using our CURP generator tool is simple and instant:

1. Click Generate: Press the generate button to create a random CURP
2. Copy Results: Copy the generated CURP for your testing needs
3. Repeat as Needed: Generate unlimited CURPs for your projects
4. Validate Format: Each CURP follows official Mexican government standards

No registration required - start generating valid CURPs immediately.

CURP Structure and Format

Understanding the CURP format is crucial for validation and testing. A CURP consists of 18 characters in the following format:

1. First letter of the paternal last name
2. First vowel of the paternal last name (excluding the first letter)
3. First letter of the maternal last name
4. First letter of the given name 5-10. Date of birth (YYMMDD format)
5. Gender (H for male, M for female) 12-13. Two-letter code for the state of birth 14-16. First internal consonant of each name component (paternal surname, maternal surname, given name)
6. Differentiation digit (0-9 for people born before 2000, A-Z for those born from 2000 onward)
7. Check digit (0-9)

CURP Generation Algorithm

1. Generate random letters for name components
2. Generate a random date of birth
3. Randomly select gender
4. Randomly select a valid state code
5. Generate random consonants for internal name components
6. Determine the differentiation digit based on the birth year
7. Calculate the check digit
8. Combine all components to form the CURP

CURP Validation Rules and Requirements

• All alphabetic characters must be uppercase
• The date of birth must be a valid date (including leap year consideration)
• The state code must be a valid Mexican state code
• The differentiation digit must correspond to the birth year
• The check digit must be correctly calculated
• Handle special cases for names (e.g., single-letter surnames, names with Ñ)

Why Use a CURP Generator Tool?

Software Development & Testing

• Database Testing: Generate realistic test data for CURP fields in databases
• User Registration Systems: Test Mexican user signup flows with valid CURPs
• API Testing: Validate CURP input handling in REST APIs and web services
• Form Validation: Test CURP validation logic in web applications

Data Privacy & Security

• Demo Presentations: Use fake CURPs instead of real personal data in demos
• Training Materials: Create educational content without exposing real identities
• Development Environments: Populate staging databases with safe test data
• Client Prototypes: Show functionality without privacy concerns

Performance & Load Testing

• Bulk Data Generation: Create thousands of unique CURPs for stress testing
• Database Seeding: Populate test databases with diverse CURP samples
• Automated Testing: Generate CURPs programmatically for CI/CD pipelines
• System Benchmarking: Test CURP processing performance under load

Understanding Mexico's CURP System

History and Background

The CURP system was introduced in 1996 by the Mexican government to modernize personal identification. This Mexican identification system replaced various other ID formats and became essential for government services, from school enrollment to tax filing.

Recent CURP System Updates

• 2011: Differentiation digit introduced to distinguish people born before/after 2000
• 2012: Check digit algorithm modified to improve CURP uniqueness
• Present: CURP remains the primary identification standard in Mexico

CURP Generator Code Examples

Integrate CURP generation into your applications with these code examples:

1import random
2import string
3from datetime import datetime, timedelta
4
5def generate_curp():
6    # Generate name components
7    paternal = random.choice(string.ascii_uppercase) + random.choice('AEIOU')
8    maternal = random.choice(string.ascii_uppercase)
9    given = random.choice(string.ascii_uppercase)
10
11    # Generate date of birth
12    start_date = datetime(1940, 1, 1)
13    end_date = datetime.now()
14    random_date = start_date + timedelta(days=random.randint(0, (end_date - start_date).days))
15    date_str = random_date.strftime("%y%m%d")
16
17    # Generate gender
18    gender = random.choice(['H', 'M'])
19
20    # Generate state code
21    states = ['AS', 'BC', 'BS', 'CC', 'CL', 'CM', 'CS', 'CH', 'DF', 'DG', 'GT', 'GR', 'HG', 'JC', 'MC', 'MN', 'MS', 'NT', 'NL', 'OC', 'PL', 'QT', 'QR', 'SP', 'SL', 'SR', 'TC', 'TS', 'TL', 'VZ', 'YN', 'ZS']
22    state = random.choice(states)
23
24    # Generate consonants
25    consonants = ''.join(random.choices(string.ascii_uppercase.translate(str.maketrans('', '', 'AEIOU')), k=3))
26
27    # Generate differentiation digit
28    diff_digit = random.choice(string.digits) if int(date_str[:2]) < 20 else random.choice(string.ascii_uppercase)
29
30    # Generate check digit (simplified for this example)
31    check_digit = random.choice(string.digits)
32
33    return f"{paternal}{maternal}{given}{date_str}{gender}{state}{consonants}{diff_digit}{check_digit}"
34
35## Generate and print a random CURP
36print(generate_curp())
37

1function generateCURP() {
2    const vowels = 'AEIOU';
3    const consonants = 'BCDFGHJKLMNPQRSTVWXYZ';
4    const states = ['AS', 'BC', 'BS', 'CC', 'CL', 'CM', 'CS', 'CH', 'DF', 'DG', 'GT', 'GR', 'HG', 'JC', 'MC', 'MN', 'MS', 'NT', 'NL', 'OC', 'PL', 'QT', 'QR', 'SP', 'SL', 'SR', 'TC', 'TS', 'TL', 'VZ', 'YN', 'ZS'];
5
6    const randomLetter = () => String.fromCharCode(65 + Math.floor(Math.random() * 26));
7    const randomVowel = () => vowels[Math.floor(Math.random() * vowels.length)];
8    const randomConsonant = () => consonants[Math.floor(Math.random() * consonants.length)];
9
10    const paternal = randomLetter() + randomVowel();
11    const maternal = randomLetter();
12    const given = randomLetter();
13
14    const now = new Date();
15    const start = new Date(1940, 0, 1);
16    const randomDate = new Date(start.getTime() + Math.random() * (now.getTime() - start.getTime()));
17    const dateStr = randomDate.toISOString().slice(2, 10).replace(/-/g, '');
18
19    const gender = Math.random() < 0.5 ? 'H' : 'M';
20    const state = states[Math.floor(Math.random() * states.length)];
21
22    const internalConsonants = randomConsonant() + randomConsonant() + randomConsonant();
23
24    const diffDigit = parseInt(dateStr.slice(0, 2)) < 20 ? 
25        Math.floor(Math.random() * 10).toString() :
26        String.fromCharCode(65 + Math.floor(Math.random() * 26));
27
28    const checkDigit = Math.floor(Math.random() * 10).toString();
29
30    return `${paternal}${maternal}${given}${dateStr}${gender}${state}${internalConsonants}${diffDigit}${checkDigit}`;
31}
32
33// Generate and log a random CURP
34console.log(generateCURP());
35

International ID System Alternatives

While CURP is unique to Mexico, other countries use similar identification systems:

Each system has unique structure and validation rules for their respective countries.

Frequently Asked Questions (FAQ)

What is a CURP generator used for?

A CURP generator creates random, valid Mexican identification codes for software testing, database development, and educational purposes. It's essential for developers working with Mexican user systems.

Are generated CURPs real or fake?

All generated CURPs are fake and random. They follow the official format but don't belong to real people. Use them only for testing and development purposes.

How many CURPs can I generate?

You can generate unlimited CURPs with our free tool. There are no daily limits or restrictions for testing and development use.

Is the CURP generator free to use?

Yes, our CURP generator is completely free. No registration, payment, or download required - just generate CURPs instantly online.

What format do generated CURPs follow?

Generated CURPs follow the official Mexican government format: 18 characters including name letters, birth date, gender, state code, and validation digits.

Can I use generated CURPs for production systems?

No, generated CURPs are for testing only. Never use fake CURPs in production systems or official applications requiring real identification.

How accurate is the CURP validation?

Our generator follows official CURP validation rules including proper state codes, date formats, gender indicators, and check digit calculations.

Do you store generated CURPs?

No data is stored. All CURPs are generated client-side and disappear when you close the browser. Complete privacy guaranteed.

Start Generating CURPs Now

Ready to test your Mexican application systems? Use our free CURP generator to create valid test data instantly. Perfect for developers, testers, and educators working with Mexican identification systems.

References

1. SEGOB (Secretaría de Gobernación). "CURP - Trámites." Gobierno de México, https://www.gob.mx/curp/. Accessed 4 Aug. 2024.
2. RENAPO (Registro Nacional de Población e Identidad). "Instructivo Normativo para la Asignación de la Clave Única de Registro de Población." Gobierno de México, https://www.gob.mx/cms/uploads/attachment/file/79053/InstructivoNormativoCURP.pdf. Accessed 4 Aug. 2024.