Background: Emotional health plays a fundamental role in quality of life, particularly after the COVID-19 pandemic, which has increased stress and anxiety, especially among children and young people Objective: This study focuses on the early identification of emotional processes that affect individuals' well-being and their effective management Methods: The open-source web application HealthTest was developed to help users understand and manage their emotions through tests focused on aspects such as stress, anxiety, and depression. The OSCRUM framework was utilized to optimize collaboration and effectively achieve the objectives Results: HealthTest has positioned itself as a valuable tool for mental health professionals by collecting information on patients' emotional well-being. Additionally, it offers various resources, ranging from meditation techniques to relaxation methods, to support users in regulating and managing their emotions. Conclusions: This study promotes accessibility to self-care and healthcare tools. HealthTest reaffirms its commitment to benefiting both mental health professionals and patients, providing an effective avenue for controlling and improving emotional well-being