Open Source C++ Search Engines

CLucene is a C++ port of Lucene: the high-performance, full-featured text search engine written in Java. CLucene is faster than lucene as it is written in C++.

Hunspell is a spell checker and morphological analyzer library and program designed for languages with rich morphology and complex compounding or character encoding. Hunspell interfaces: Curses, Ispell compatible pipe interface, OpenOffice.org UNO module

The Lemur Project develops search engines, browser toolbars, text analysis tools, and data resources that support research and development of information retrieval and text mining software, including the Indri search engine in C++, the Galago search engine research framework in Java, the RankLib learning to rank library, ClueWeb09 and ClueWeb12 datasets and the Sifaka data mining application.

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.

Greenstone is a complete digital library creation, management and distribution package created and distributed by the New Zealand Digital Library Project. There are two major versions of the software. Greenstone 3 is under active development, and is recommended for download. We also provide maintenance releases for its forerunner, Greenstone 2. Featured download not what you're looking for? Click "Browse all files" to access binaries and source releases of both versions.

The stuff here has no documentation and some of it may never be completed. This is my playground, use at your own risk.

The ht://Dig system is a complete indexing and searching system for a domain or intranet. This system is not meant to replace the need for powerful internet-wide search systems like Lycos, Infoseek, Google and AltaVista.

Lurker is a mailing list archiver designed for capacity, speed, simplicity, and configurability in that order. Noteworthy features include: google-style searching on all fields, chronology preserving threads, multilingual, and attachment support.

Dave's Quick Search Deskbar is an add-on for the Windows Desktop Taskbar that lets you launch searches quickly. With almost 400 searches, a calculator, clock, calendar, and much more in one little textbox, it's monster functionality in a flea-sized

Amberfish is general purpose text retrieval software. It supports nested queries of semi-structured text in XML format and traditional unstructured searching.

Grub is a distributed internet crawler/indexer designed to run on multi-platform systems, interfacing with a central server/database.

WallPaper (alias crawlpaper) is a desktop changer (NOT a screensaver) which includes a web crawler for picture download, an audio stream ripper, an audio player, a mini mp3 tag editor,etc. Also included support for .zip and .rar files.

Infinispan is an open source, Java based data grid platform. ***IMPORTANT*** Starting with Infinispan 5.0.0.FINAL, Infinispan releases are no longer hosted in Sourceforge. They can now be located in www.jboss.org/infinispan/downloads

A high-speed FTP search engine which use RevertIndex to search.

High-performance software for information retrieval research. Emphasis on semi-structured text retrieval, especially for HTML and XML. The goal is to facilitate information retrieval research by providing an interchangable toolkit of functions.

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.

Websitemirror is a small program to download complete websites into a specific directory for offline viewing. Websitemirror ist ein kleines Programm welches eine komplette Webseite in einer Verzeichnis für offline browsen herunterläd.

The target of this project is to develop a protocol and a server building on top of TCP/IP. I want to manage bookmarks over the network. The protocol will be based on XBel, an XML bookmark exchange language.

FirteX is a high performance,full-featured text indexing and retrieval platform.It provides a flexible and feasible experiment platform for researchers,as well as a scalable platform for Web search development.It is very fast,and well support for Chi

Omseek has been renamed to Xapian. Xapian is a Search Engine Library, written in C++ with bindings for Perl, Python, PHP, Java, Tcl, C# and Ruby. It allows you to easily add advanced indexing and search facilities to your applications.

SWISH++ is a Unix-based file indexing and searching engine (typically used to index and search files on web sites). It's very fast, robust, and can index several file formats including text, HTML, mail, news, LaTeX, and MP3, and apply filters.

ARADO RSS Feed Reader is a URL Database for Websearch and RSS Feed Reading, which saves your added Bookmarks & RSS-Feeds and syncs newest URLs with your connected devices. Store and Search your all your URLs in ARADO. As framework c++ / Qt is used.

ASPseek is a full-featured medium-to-large scale SQL-based Internet search engine. It consists of an indexing robot, search daemon and search frontend (CGI program). These programs are written in C++ using the STL library.

AV Tracker is an IP tracking system.

The Alpine Network is a peer based application and network infrastructure designed for distributed resouce location, including file/data transfer. Alpine attempts to resolve the distributed search/sharing problem using an efficient messaging system.