This paper presents Educational Hangman, a web platform to generate customized hangman games for supporting or reinforcing the learning of vocabulary in primary school children. The aim of the hangman game is to guess a word in as few attempts as possible, which at the same time helps children to familiarize with the correct spelling of words. The Educational Hangman web platform was created for both teachers and students. Teachers can set up custom word categories based on the topic or subject of their choice, and add words along with clues, images, and audio files. Students then play hangman games generated by the web platform, using the word categories created by their teachers, according to the topic or subject area desired. The paper also discusses some existing hangman game tools that do not offer options for creating custom categories or adding specific words.