This thesis presents a project for developing a web application to be used for reservation of devices inside Jyväskylä Security Technology. The purpose of the project was to develop the server application and this thesis describes the process of development. The first chapter of the thesis describes the background of the thesis, and lists the objectives and requirements for the application to be developed. The second chapter covers part of the theoretical knowledge required to implement the project. The remaining chapters deal with the actual implementation and testing of the web server, the database and client side implementation. The result of the thesis is a functioning web application that can be utilized to make reservations for the devices. The end result was reviewed and accepted by the supervisors of the thesis and practical training, although there is still room for improvement.