The main objective of the Equal-Life Toolbox is to provide a digital platform that enables the exploration of exposome factors and their impact on children’s cognitive development and mental health. It aims to translate complex scientific findings into actionable insights for various stakeholders, including policymakers, researchers, and practitioners. The toolbox serves as a central resource consolidating knowledge, methodologies, and tools developed within the Equal-Life project to inform interventions aimed at improving children's mental health and cognitive development. Ultimately, it fosters supportive environments that prioritise children's mental health and cognitive development, contributing to a healthier future for all children. The toolbox comprises a Web-based data and knowledge exploration application, as well as a guidance document suitable for broad use and adaptable for new data and methods, and for disseminations of results (Deliverables:9.3 – D9.5).