Sphinx | Open Source Search Server. Comprehensive list of Search Engines - The Search Engine List. The Xapian Project. Terrier IR Platform - Homepage. Cuil. Lucene. Apache LuceneTM is a high-performance, full-featured text search engine library written entirely in Java.
It is a technology suitable for nearly any application that requires full-text search, especially cross-platform. Apache Lucene is an open source project available for free download. Please use the links on the right to access Lucene. Lucene offers powerful features through a simple API: Scalable, High-Performance Indexing.