Open Source Search Engines

Elasticsearch is a distributed, RESTful search and analytics engine that lets you store, search and analyze with ease at scale. It lets you perform and combine many types of searches; it scales seamlessly, and offers answers incredibly fast with search results you can rank based on a variety of factors. Elasticsearch can be used for a wide variety of use cases, from maps and metrics to site search and workplace search, and with all data types.

An Award Winning and complete open source seo control panel for managing search engine optimization of your websites. Seo Panel is a seo tool kit includes latest hot seo tools to increase and track the performace of your websites. It is a free software released under GNU GENERAL PUBLIC LICENSE V2. Seo Panel selected as 1st Runner Up in 2011 Open Source Awards as Most Promising Open Source Project. The main feature of seo panel is its extendability by using seo plugins. Any one can easily develop and install required plugins for their seo panel. This open source software was released on January 2010. With in this short period of time thousands of web masters are using this software for optimizing their websites. Use seo panel today itself and enjoy everything related to seo under a single platform. The major feature of seo panel is seo plugins, we can add plugins to our seo panel and extend the features according to our requirement. Home Page: https://www.seopanel.org/

ResCarta Toolkit offers an open source solution to creating, storing, viewing, and searching digital collections. Applications in the toolkit let users create and edit metadata, convert data to open standard ResCarta format, index and host collections.

A PHP/Postgresql based document management system (DMS) with full-text searching, keyword support, file discussions, document workflow, task management, webdav support, and file locking.

ReHash is an easy-to-use console-based hash calculation tool written in C++. It supports many algorithms and output formats and it can be fully configured using some of the many command-line arguments which can be passed to the tool.

Contineo is a Web-based Document Management System (DMS). Features: Folder organization, document Versioning, Bulk import, import from mailbox. NOTE: this project has been DISMISSED in favor of LogicalDOC http://sourceforge.net/projects/logicaldoc

OpenSearchServer is a powerful, enterprise-class, search engine program. Using the web user interface, the crawlers (web, file, database, etc.) and the client libraries (REST/API , Ruby, Rails, Node.js, PHP, Perl) you will be able to integrate quickly and easily advanced full-text search capabilities in your application: Full-text with basic semantic, join queries, boolean queries, facet and filter, document (PDF, Office, etc.) indexation, web scrapping,etc. OpenSearchServer runs on Windows and Linux/Unix/BSD.

DoXFS (pron. docs-eff-ess) Document Managment System

Address Book Express is a super simple, intuitive & responsive web-based address book and contact manager written in PHP with MySQL backend featuring groups, addresses, e-Mails, phone numbers, contact photo, birthdays with admin panel and many more.

Job Advertisements Finder. Searches-crawls web sites offering jobs, creates indexes using the lucene engine and provides search services to find the job you are looking for.. It's just a uni homework.

Aqua Media Database (Aquamdb) is a social media collaboration tool. Right now it only supports collecting media (CDs and DVDs) and tagging them.

PHP based CMS system which is designed to run on any PHP capable web-server Features: - No own templating language - No cryptographic urls (urls will follow menu structure) - XHTML 1.0 Strict, CSS 2.1 compliant - Follow WAI suggestions - I18n

Booletin es un buscador de Boletines oficiales (BOE, BOCM, etc.), que incluye un sistema de alertas por correo electrónico. Utiliza Apache Lucene para indexar el contenido en pdf de los boletines oficiales de España.

Cicerone is a multi-platform, multi-server, multi-database, web-based corporate information system like no other. Completely web-driven and accessible through any 4.x web browser, Cicerone allows your company to create and maintain information on the fly

Common Library is a learning content and document management system that enables dynamic outcome-based learning object alignment through semantic analysis & granular addressability. For implementation questions contact http://www.bluefletch.com.

Web Dictionary System. Extensible by uploading more dictionary files in XDXF format. Written in Grails. Using Compass-Lucene as the search engine. RESTful search. Compatible in Tomcat, Jetty, Weblogic ...

DCTViewer is a robust web based solution, sponsored by Document Conversions Technology, http://docconversions.com , for digital document searching and viewing in an intranet enviroment. Features include document storage, indexing, searching and viewing,

With DoCASU, Alfresco users have a simplified and easy to use solution to access, search and manage documents. DoCASU is a Rich Internet Application (RIA) based on Alfresco Web Scripts and ExtJS. Find all details on: http://code.optaros.com/trac/docasu

DocInfoRetriever is a Web_based document full-text search engine based on lucene. It allows you to search the contents and metadata of documents . Supported document formats, likes doc, xls, pdf, odt, jpg...etc.,and torrent files.

DocLib is a Web-based Document Management System implemented in ASP .NET technology to facilitate documents finding in Full Text Search, Directory Browsering, Search by document summary,by Catagory/Attribute , and by Virtual Directory.

Prototype for a framework and user interface for combining various structured search and document clustering techniques.

Facedex is an online mugbook system written in Ruby on Rails, allowing an organization (school/church/company) to easily set up a directory of all its members. Each personin your directory has their own profile with photo ("mugshot"), contact info, etc

Fire.now is a Firefox plugin that automatically adds your documents to the WhereIsNow latest version discovery service. Everytime you upload a document somewhere, Fire.now integrates the WhereIsNow keys into the file and add it's url to WhereIsNow.

A toolkit for crawling information from web pages by combining different kinds of "actions". Actions are simple operations such as navigation to a specified url or extraction of text from the html. Also available is a graphic user interface.

Gumshoe Desktop Search indexes local files of various formats on a Windows desktop and provides a search GUI. The project is developed in Java. It builds on other opensource projects including Lucene, Luke, SWT, tagsoup, Jakarta POI and others.