ID Card Number Validation

• ID card number validation tool that verifies the validity of 18-digit Chinese mainland ID numbers, parses the birth date, determines gender, and identifies the origin
• Automatically checks the ID format and check digit (GB 11643 algorithm), flags invalid IDs in real time, and extracts zodiac, constellation, age, and more

1. Open the tool page — no installation needed
2. In "Single" mode enter an 18-digit ID, or switch to "Batch" mode and paste multiple IDs (one per line)
3. Click "Validate" (it also validates automatically once 18 digits are entered), review the valid/invalid result and detailed breakdown, and use "Reset" to clear

• This tool is completely free and requires no sign-up
• Everything runs locally in your browser — your data never leaves your device

Free online ID card number validation tool, supports 18-digit Chinese ID card validity verification, birth date parsing, gender determination, and origin identification. Real-time validation of ID card format and check digit calculation, quickly identifies invalid ID cards. Suitable for real-name authentication, data entry, data auditing and other scenarios.

Open the tool page — no installation needed In "Single" mode enter an 18-digit ID, or switch to "Batch" mode and paste multiple IDs (one per line) Click "Validate" (it also validates automatically once 18 digits are entered), review the valid/invalid result and detailed breakdown, and use "Reset" to clear

This tool is completely free and requires no sign-up Everything runs locally in your browser — your data never leaves your device

Yes, ID Card Number Validation is completely free. No download or installation required — it runs right in your browser.