Luke - Lucene Toolbox Project

Lucene is an Open Source, mature and high-performance Java search engine. It is highly flexible, and scalable from hundreds to millions of documents. Luke is a handy development and diagnostic tool, which accesses already existing Lucene indexes and allows you to display and modify their content in several ways: browse by document number, or by term view documents / copy to clipboard retrieve a ranked list of most frequent terms execute a search, and browse the results analyze search results and lot more.