Most of the studies focus on the teaching of foreign languages indicate that little attention is paid to the prosodic features both didactic materials and teaching-learning processes (Martinsen, Avord and Tanner, 2014). In this context and throughout this article, an analysis of the didactical and technical dimensions of OJAD (Japanese Accent Online Dictionary) is performed, linked to a project of the National Institute for Japanese Language and Linguistics led by Minematsu (University of Tokyo). With the collection of data and information through an adaptation of the CEETP "Questionnaire for the Evaluation of Didactical, Technical and Pedagogical aspects of Educational Websites" by Cabello, Martinez-Segura and García Sánchez (2013) and supported by studies and researches of the responsible teams, it is performed an analysis of the web that allows us to highlight its positive and to be reviewed aspects from an educational point of view. OJAD is an accessible and systematic tool linked to the didactic of Japanese language, with a great potential regarding the searching criteria and adaptation to the user tool.