In the paper we describe the results in the development of the tools for handling diverse multilingual lexical resources such as monolingual and multilingual dictionaries, terminological dictionaries, complex lexicographic databases or WordNet semantic networks. All the presented tools are based on the Dictionary Editor and Browser (DEB) platform which uses standard XML formats. In this direction we strive to standardization of the lexical resources and also their interoperability. All the presented tools are freely available. We summarize the basic features of the DEB platform as a whole and then concentrate on four applications: DEBDict (a general dictionary browser), DEBTerm (multilingual terminological dictionary editor), PRALED (Czech Lexical Database system) and Visual Browser (graphical semantic network browser).