A complete indexing and searching system for a small domain or intranet. Source code provided under the GPL.

Free search engine software for your web site or intranet, with documentation and no advertising or dependency on external sites. PHP or ASP is required for the search front-end.

Search engine for Unix and Windows NT that handles meta tags. Free and open-source under the GNU public license.

Provides SQL-based relational full-text retrieval, dynamic publishing, object management, and web-indexing software.

Finds information in a related web of pages. Collects and indexes pages based on traversal of links or subdirectories. Create a context-sensitive search by category by linking to relevant pages.

Written in Perl. Online-manageable with a web browser.

Free GPL-licensed distributed search system to collect files of many different formats and make the information searchable using a web interface

Develops web-based job and resume search software for career, newspaper and employer sites.

Enterprise search engine with advanced text and metadata capabilities.

Perl script indexes and allows Boolean searching. Suitable for indexing up to approximately 4, 000 pages.