mnoGoSearch is a full-featured Web search engine that you can use to build search engines over HTTP, HTTPS, FTP, and NTTP servers, local files, and database text fields. It has built-in support for XML, HTML, eml, and text files. External converters can be used to support other document types. An automatic language/charset guesser for more 70 language/charset combinations is included, along with cluster support, making it possible to distribute data over multiple computers and index huge collections with up to several hundred million documents.