HKID Validator
A utility for validating and generating Hong Kong Identity Card (HKID) numbers. Built with Flutter as a single-page web application, it helps developers and testers produce valid-format HKID numbers for test data and lets anyone check whether a given number is valid.
Not sure how to add HKID Validator to your home screen? Step-by-step for Chrome, Safari, Firefox and Edge — it takes about ten seconds, and there is no app store involved.
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How to install HKID Validator as a PWA
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