Tutelia is an online application designed for creating precise 2D floor plans and visualizing them in a 3D environment. Users have the ability to construct walls by inputting measurements or by tracing plans from JPG, PNG, or SVG files, and can further enhance their designs by incorporating rooms, doors, windows, furniture, lighting, flooring, wall finishes, balconies, gardens, pools, staircases, multiple floors, and basements. The layout can be examined from various perspectives, including top-down views, sectional views, or immersive first-person walkthroughs, with options to simulate both daytime and nighttime lighting. Additionally, users can easily share their projects via a browser link, allowing others to view the plan and experience the 3D walkthrough without needing to download an application or create an account. There is also functionality for exporting a scaled A4 PDF or image along with a detailed floor-area report. Tutelia is particularly useful for property professionals, interior designers, renovation companies, retail and office space planners, as well as homeowners who require a clear visualization of a space or wish to effectively communicate a proposed layout to others. Overall, it serves as a versatile tool for anyone looking to design and share impactful spaces.