Technology has become ubiquitous in people’s everyday life. The number of websites and mobile applications available is growing, but so are various persuasive approaches to influence human behavior and decision-making in online environments. While designing for persuasion has many potential benefits, recent years have revealed different deceptive design techniques that utilize the understanding of psychological principles to nudge people in a desired direction. This thesis outlines and explores this phenomenon known as dark patterns, which favors business goals over user values. Practitioners have laid out many deceiving design strategies in the past, but it remains unclear how the end user perceives and experiences them. Therefore, a qualitative method approach was chosen to study the end users’ perspectives on the subject. The analysis of the data shows that even though there was some awareness, many manipulative techniques were unknown. Participants blame the businesses, remark however to be partly responsible for their own fate. In addition, the acceptability of such techniques shifts depending on the respective dark pattern.