The EuLíder application was developed to collaborate in the self-development of nurses' leadership. For this, it was built based on the self-knowledge process, in which it is possible to carry out self-assessment questionnaires and on the self-development process, in which it has indications of articles, podcast, videos and general internet content that aim to contribute to this process of self-development of the leadership. The Eulíder application also has a space for recording professional practice, as well as a leadership thermometer that allows pointing out how the nurse feels as a leader at that moment. With all these tools, the Eulíder application seeks to guide nurses in the process of self-development of leadership, considering the indispensable relevance of this competence for the professional practice of nurses in health care management.