MetKids is a kid-friendly gateway to New York's Metropolitan Museum of Art. The site features three major sections: "Map" lets users explore an interactive cartoon map of the Met, clicking red dots to learn more about the artwork and yellow dots to learn about visitor spaces in the museum. Each red dot lets users view a work of art in detail, and they can click "Listen" (to learn more about the work in a child narrator's voice), "Discover" (to read more background information), "Imagine" (to imagine what the artwork might mean more broadly in its original context and today), and "Create" (where kids can create their own art related to the work they've just explored). There's also an "even more information" link that kids can tap to enter the Met's website for grown-ups and explore the work in even greater detail.

Kids can use the Time Machine feature to explore Met holdings by time period (such as 500–1,000 A.D.), geography (such as Latin America and the Caribbean), and concept (such as "Inventions" or "Mythology"). "Videos" features brief clips sorted into four categories: "Create," "Q&A," "Made by Kids," and "Celebrate." "Create" and "Made by Kids" showcase kids' creations, while Q&A videos feature kids asking questions about the museum (from how they preserve suits of armor to how they put together exhibits) and interviewing its curatorial and education staff. Finally, users can also tap a drop-down menu to learn more about the MetKids project, link to the site's blog, find out about visiting the museum, and explore programs for kids and families.