This project investigates how online chat services can support young people experiencing youth intimate partner violence. Although such violence is common and linked to long-term emotional, psychological, and social harm, many young people do not disclose their experiences or seek help. Online chat platforms may lower barriers by offering anonymity, immediacy, and flexibility, yet they also introduce challenges, such as difficulties in conveying empathy or building trust without face-to-face interaction. Little is known about how these chats actually facilitate or hinder support and well-being, especially across repeated interactions. The project aims to deepen understanding of how chat communication influences help-seekers’ immediate experiences and longer-term sense of well-being. Through four complementary studies, the project examines experiences, outcomes, language, and narrative development within chat interactions. Study 1 explores how help-seekers and support providers perceive the strengths and limitations of chat-based support through qualitative interviews. Study 2 investigates which factors that are associated with changes in self-reported aspects related to well-being after a single chat session and one month later, using survey data. Study 3 analyzes how linguistic features, such as emotional tone or specificity, relate to perceived helpfulness by analyzing chat transcripts and survey data. Study 4 examines how young people construct and develop their personal narratives across repeated chats with the same provider by analyzing chat transcripts. Drawing on qualitative, quantitative, and computational methods, the project combines depth with breadth to produce a comprehensive understanding of chat-based support. Findings are expected to inform best practices for support organizations, guide training for volunteers and professionals, and contribute to improved services tailored to the needs and communication preferences of young people affected by intimate partner violence.