愛着MBTI is a Japanese personality and relationship platform that combines MBTI-style 16 personality types with four attachment styles to create 64 profiles. Its free, 46-question assessment takes about five minutes and explores how people think as well as how they respond to closeness in relationships. The site emphasizes that its results describe tendencies, not medical diagnoses, and that attachment patterns can change with experience.

Beyond the main assessment, visitors can use tools for compatibility, reconciliation prospects, detailed attachment profiles, Big Five traits, and character-based quizzes. The platform also offers guides to 64 types, explanations of the 16 personality types, and a dictionary covering 1,715 characters and public figures, with interpretations identified as editorial estimates. Articles and discussion boards address attachment and relationship concerns, while a free online community brings together games, group conversations, and social activities.

Users can compare relationship, friendship, or work compatibility, and save or revisit results without creating an account. Paid guides are also available, with prices and sample content provided for review