Summary This article analyses the functioning of digital public diplomacy in Mexico and Chile. The methodology used was qualitative and comparative. Both countries have a presence in cyberspace, both on websites and social media. The Mexican Foreign Secretariat is very active on social media, while the Chilean Ministry of Foreign Affairs has had a more late presence in cyberspace, but is gradually taking a position with an agenda that emphasises its major foreign policy issues. Interaction is the least developed aspect in both cases.