the metalife viewer visualizes the data of the area of knowledge of life processes accumulated in metalife knowledgebase in order to facilitate the intuitive explication of biological processes. the user can search for network of molecular interactions, pathways, functional network or other ontology. metalife viewer contains a highly effective filter that gives the possibility to obtain reports with the required contents. in combination with additional processing algorithms data can be processed and sorted in appropriate order. this gives the performance to represent data visually, and form the searched knowledge to pass to hypotheses. metalife viewer can communicate and interact with all other modules developed by metalife.