Chinese ID Number Validator
Check digit, birth date and regionRuns locally · nothing uploaded
The number is checked only in your browser and never uploaded or stored. Passing the check only means the format follows the national standard (GB 11643), not that the ID exists.
Only check your own number or one you're authorized to handle. A valid format does not prove the ID exists or belongs to anyone.
Also works as:china id card number checkresident identity card validatorgb 11643 check digit
How to use
- 1Enter an 18-digit or 15-digit ID number.
- 2See whether it's valid and why not.
- 3Review the decoded region, birth date and sex.
FAQ
What does the final X mean?
The last character is a check digit computed from the first 17 digits with weights modulo 11; a value of 10 is written as X.
Is the number stored?
No. Everything runs in your browser; nothing is uploaded or logged.