Main topic of this thesis is use of WordPress platform and comparison with manual programming. CMS systems are used to manage content such as photos, text or video, and thanks to its advanced features and rapid development they have become the most important carriers of development in web industry. The key features of good CMS are usability, simple layout, adaptability for different purposes and excellent control of publishing content process. The best known and most used CMS system is WordPress which enables rapid and free development of websites offering thousands of miscellaneous topics that can be edited to suit any preferences. WordPress is primarily designed as a blog platform, but it has evolved into a complete content management system because of its numerous features, such as adding more administrators, fast installation of various useful plugins and tools, rapid changes of the content. For these reasons, WordPress is much more simpler and more accessible to users than a conventional manual programming, which requires knowledge of programming languages and a lot of time to create and edit content. For pages where content changes often, working with the CMS system is desirable. Manual programming of websites where we have to add or modify existing content on daily bases is not an adequate solution. For those kind of websites the best is to use WordPress or similar open source platform