SheetCraft Client-side Excel Toolbox 中文
Tool 06 Files are processed locally in your browser

ID Card Parser

Batch-validate 18-digit Chinese ID numbers with the MOD 11-2 algorithm, and extract age and gender from valid numbers. Three new columns are added on export.

1. Upload file

Drag Excel files here, or click to browse

Supports .xlsx / .xls, multiple files; processed locally in your browser

FAQ

How are ID numbers validated?

With the national standard ISO 7064 MOD 11-2 check-digit algorithm for 18-digit numbers, plus a birth-date sanity check.

What information can be extracted?

For valid numbers: date of birth, current age, and gender inferred from the 17th digit (odd = male, even = female).

Is ID data safe here?

Yes. All validation and parsing run locally in your browser — ID numbers are never uploaded to any server.