The main goal of this thesis is to create a generator of scientific web portals which makes the creation of portals much easier. The administrators of the portals will be able to show different information to specific user groups. The generator is based on modular structure that uses Nette framework (PHP), Doctrine ORM and jQuery framework (Javascript, Ajax). The portal presents the results depending on settings of each portal and its basic data is saved in local database. The local database is a stand-alone project (ReReSearch). The portal works in different modes which are classified into three categories: automatic, semi-automatic and manual mode. The priority mode is the semi-automatic. The generator works also as a feedback for the local database, which provides relevant information from specified fields of science.