Virtually all businesses, corporations, and organizations today utilize the internet and websites as means to communicate, broadcast and interact with their broad spectrum of users. As computer and internet resources grow larger and larger, the opportunities and possibilities a website brings can prove invaluable. A courier service provides door to door shipping and delivery of letters, packages and other shipments. Courier service range from one location to another as quickly as possible. This research aims to develop and design a courier service reservation and management system of the Kurdistan Region-Iraq. This research is aimed to solve many of the problems that are in the existing system and also provide a hassle free system that is efficient and easy to use. This system helps users... to send and receive items from different locations in Kurdistan Region-Iraq with a new security technique to maintain the data when transferring over the network. Till now in our country this system is not available. In our proposed system users can register in Courier Service website from their home and they can pay money with the help of payment gateway. To protect privacy and financial information of clients our proposed system has ability to provide a new online technique security. Online courier service system is a user friendly website developed in ASP.NET with C# programming language as front end and SQL Server database as back end. This system is designed to provide users the best method to book for collecting and delivering items through online which will reduce manual work. According to the results, the method we proposed in this paper has ability to reduce cost for management, increase efficiency and provide better service for users with the new security techniques to maintain their detail information on the website.