Psychologists, social scientists, and researchers have always been in need of effective mechanisms to compare diverse questionnaires and gauge correlations. We’re focusing particularly on the comparison of the General Health Questionnaire (GHQ 12) and the Drug Use Disorders Identification Test (DUDIT), which is often referred to as GHQ 12 vs DUDIT. Understanding how these questionnaires correlate can provide valuable insights into research on psychological distress and drug-use disorders. But the process of such comparisons or harmonisation can still be a mundane and prolonged process. Harmony is an innovative tool designed to ease exactly this process. By employing advanced AI models and natural language processing, Harmony can assist in harmonising items in different questionnaires like comparing GHQ 12 vs DUDIT. Harmony can present a percentage match between each item in the GHQ 12 and DUDIT, aiding researchers to draw better conclusions in a comprehensive and time-efficient manner. It even supports multiple languages, broadening the research landscape for developmental, comparative, and constructive analysis. Harmony’s intuitive interface allows you to directly upload your instruments, and the underlying AI does the rest. Whether you are comparing the GHQ 12 vs DUDIT or other types of psychological or social questionnaires, Harmony makes the process smoother, faster, and more reliable. Utilizing Harmony can save time and improve the accuracy of cross-cohort analyses, making it a valuable resource for any psychology research toolkit.