This document describes a smart anti-theft system for vehicle security using GPS and GSM technologies. The system tracks the real-time location of a vehicle using a GPS module and sends alerts via GSM if unauthorized movement or accidents are detected. It consists of a GPS receiver, GSM module, microcontroller, webcam, vibration sensor and can send the vehicle's location, photos or videos to the owner. The system provides benefits like vehicle tracking, accident alerts, and theft prevention at a low cost. It has various applications in fleet management, transportation, security and more.