The paper presents a designed and implemented tool VisDic which implements the functionality of editing and viewing different lexical resources. It was developed in the Natural Language Processing Laboratory at the Faculty of Informatics, Masaryk University. The smart design and the accent on the usage of XML standards enable to manage lexical data from dictionaries to lexical databases, semantic networks, and complex ontologies. It also facilitates the connection to other linguistic tools such as corpus managers or morphological analyzers.