Utility "Light Web Searcher" allows to seek for textual information in the web-sites. In a departure from the Google-like worldwide searching systems, given software provides only local information searches in concrete sites. The main advantage is that Light Web Searcher searches for a data directly in the pages of site (downloading and keeping them at user's computer), rather than barely in the internal data-base, that probably contains outdated information. However, cache of the stored pages can be used for acceleration of repeated inquiries. User can manipulation complex queries searching for words or phrases and access whole subject of the found pages and whole coincidences with seek query, on completion of seek, without the additional manipulation of Internet. Features : Multithreaded, effective page downloading; Simple interface which suports English, Ukrainian and Russian languages; Reuse of pages downloaded before for the seek; Use of a proxy-servers, including those which require authorizing; Presence of assistance in whole afore-mentioned languages; Use of the Perl even expressions in seek queries; Management of a seek zone by means of the pointing of maximal depth, and limiting the seek by a concrete site or path inside it;