"Contextual rule-based text normalization engine written in java, that can be used to implement stemming algorithms or phonetic normalizers. The project includes a french stemmer/phonetic normalizer, and a soundex implementation. Includes a Lucene Analyzer"

Nutch ( is a web search engine that uses Lucene as it's search technology. It adds a scalable crawler, link database, distributed searching, and a web-based search interface.

Luke (, Lucene index browser.

CodeCrawler (, is a smart web-based search engine specifically built for use by developers for searching source code that uses Lucene.

RealtimeSearch ( provides realtime search using Lucene.