The study aims to reveal the existing situation, deficiencies, and results of the applications in the online assessment process and to bring suggestions to researchers and practitioners. For this purpose, the studies on the applications carried out in the online assessment process were examined and analyzed and suggestions were made according to the results. The systematic literature review method was used in the study. The results were analyzed by reviewing the research in the literature with the research topic. The studies were brought together by examining the full texts of the studies included in the analysis, the applications used in the assessment process, and their results. The purpose of the study, the assessment process, and the results of the applications made in this process were examined in detail. These studies were then classified according to focus topics using NVivo 12 software. In addition, the research findings were included by using descriptive analysis. As a result, studies on online assessment are generally about the obstacles and experiences encountered in the assessment process. The technical infrastructure problems, accessibility, and technology literacy problems encountered in these studies are the default elements of online learning environments and must be resolved. By overcoming these problems completely, an in-depth examination of exam security and exam quality can be made. In addition, the negativities experienced in the assessment processes in applied fields are another problem encountered and it is a subject open to research.