The Individual Inventory Service (IIS) is a fundamental component of guidance programs, but manual record-keeping may limit confidentiality, accessibility, and continuity of student records. This study designed and developed MindCare, a web-based IIS and counseling support system intended to digitalize student records, document counseling activities, and facilitate appointment scheduling. A developmental research design was used through four phases: needs analysis, system design, system development, and expert validation. The system was developed using PHP, JavaScript, HTML/CSS, Bootstrap, and MySQL in a localhost testing environment. MindCare provides secure role-based access, electronic IIS forms, counseling request management, session documentation, record monitoring, and report generation. Two experts, one in guidance and counseling and one in information technology, evaluated the design using a five-point validation instrument. Both experts rated the system as Highly Acceptable across relevance to guidance services, appropriateness of features, data privacy measures, structure and organization, and feasibility of implementation, yielding an overall mean of 5.00. The findings indicate that MindCare is a relevant and feasible design for improving guidance-service record management and access. Pilot implementation and user-based usability evaluation remain necessary before institutional deployment.