LifeCode: QR‑Based Emergency Identification System

LifeCode is a QR‑based identification system designed to provide rapid access to essential personal and medical information during emergency situations. The system stores critical data such as medical conditions, allergies, medications, and emergency contacts, allowing responders to retrieve this information within seconds by scanning a unique QR code. LifeCode aims to improve emergency response efficiency, reduce medical risks, and enhance safety for vulnerable groups including children, elderly individuals, people with disabilities, and non‑verbal persons. This work presents the concept, structure, and potential social impact of the LifeCode system.