Chinese ID Validator
Validate Chinese ID numbers (18-digit and 15-digit formats) and extract information.
Features
- Validate 18-digit ID numbers (with checksum verification)
- Validate 15-digit ID numbers (with birth date check)
- Extract birth date from ID number
- Extract gender from ID number
- Extract region code from ID number
- Pure Python, no external dependencies
ID Number Format
18-digit Format (1999-present)
- 1-6: Region code
- 7-14: Birth date (YYYYMMDD)
- 15-17: Sequential code (odd=male, even=female)
- 18: Check digit (0-10, where 10=X)
15-digit Format (1985-1999)
- 1-6: Region code
- 7-12: Birth date (YYMMDD, assumed 19xx)
- 13-15: Sequential code (odd=male, even=female)
Usage
python3 scripts/id_validator.py --id 110101199003074416
Example Output
{
"valid": true,
"region": "110101",
"birthday": "1990-03-07",
"gender": "男"
}
Validation Rules
- Length must be 15 or 18 digits
- Birth date must be a valid calendar date
- For 18-digit IDs: checksum must be correct
- Region code must be a valid Chinese administrative region
Common Region Codes
| Code | Region |
|---|---|
| 110000 | 北京市 |
| 310000 | 上海市 |
| 440000 | 广东省 |
| 320000 | 江苏省 |
| 330000 | 浙江省 |
Use Cases
- User registration form validation
- Identity verification in business processes
- Age-based access control
- Demographic data analysis
Notes
- This tool validates format and checksum only
- It does not verify against government databases
- Region codes are not fully validated (only format checked)
- Results are for reference only
Technical Details
- Language: Python 3
- Dependencies: None (standard library only)
- License: MIT-0
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