Building the web application Online Exams is divided into five chapters. In the introduction, the task which requires performing is presented, along with its functionality, concept and structure. The next chapter defines the meaning of the web application and technologies which may be utilized to build it. Furthermore, there is a list of tools and technologies used during the work. The third part represents an administrative part, i.e. the part intended for professors/students, with a detailed representation of the code and logics of the relevant unit. After the administrative part, the largest part of application creation is reserved for the users. In that chapter, the code is represented and described, accompanied with explained figures. The conclusion encompasses the advantages and disadvantages of the subject application and emphasizes the possibility of its upgrade.