Abstract
to the application, preparing test scenarios, looking for respondents or testing subjects, making questionnaires with the System Usability Scale (SUS) standard, and conducting usability analysis on the results of respondents and questionnaires. Then the final output is in the form of reports and conclusions regarding the results of the analysis. LINE Messenger itself is a popular social media application, an application that has many features such as LINE Today, Share screen and also has a LINE Shop. LINE itself is an easy-to-use application, with the results of the questionnaire showing positive Usability Testing results for LINE Messenger.