Existing scholarship on developmental idealism demonstrates that ordinary people around the world tend to perceive the level of development and characteristics of different countries similarly. We build on this literature by examining publics' perceptions of nations and development in internet search data, which we argue offers additional insights into publics' perceptions that survey data does not address. Our analysis finds that developmental idealism is prevalent in international internet searches about countries. A consistent mental image of national development emerges from the traits publics ascribe to countries in internet searches. We find a positive relationship between the sentiment expressed in Google searches about a given country and its position in the global developmental hierarchy. Diverse publics consistently associate positive attributes to countries ranked high on global development indices and negative characteristics to countries ranked low. We also find a positive correlation between the number of internet searches about a country and the country's position in indices of global development. These findings illustrate that ordinary people have deeply internalized developmental idealism and that this informs their views about countries worldwide.