The aim of this master's thesis was to develop a functional web store for selling auto parts on a local computer, using technologies such as HTML, CSS, Bootstrap, PHP, and JavaScript. To manage the database and support the store's operations, the phpMyAdmin SQL interface was used. The development process included creating both the user interface and administrative interface, as well as setting up the database. Key functionalities such as product overview, searching, and order management were implemented. Additionally, a test payment functionality was integrated, simulating credit card payments through the Stripe platform. Through this master's thesis, successful development of the web store was achieved, providing a foundation for real online business. The implemented technologies and functionalities enable users to browse and purchase auto parts, while the administrative interface makes it possible to manage content effectively. The test payment functionality adds an extra layer of security and reliability to the system, ensuring its readiness before the store goes live.