Open Source Linux Search Software

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++.

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.

Create search forms for your Ruby on Rails application with Ransack! Ransack is available in two modes: simple and advanced, allowing you to create either simple or advanced search forms. Simple mode works much like MetaSearch and is very easy to set up. The advanced mode makes use of Rails' nested attributes functionality in order to generate complex queries with nested AND/OR groupings, etc. This involves more complexity but does produce some very interesting search interfaces and puts more power in the hands of users. Ransack is compatible with Rails 5.0, 5.1, 5.2 and 6.0, and on Ruby 2.3 and later.

Aperture is a Java framework for extracting and querying full-text content and metadata from various information systems (file systems, web sites, mail boxes, ...) and the file formats (documents, images, ...) occurring in these systems.

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.

QuickFind is a cross platform Java Application for searching files in your Computer. The sole purpose of this application is to save user time by searching the desired file almost instantly. User has all the freedom to schedule or cache manually any time on selected directories. Once the caching is done all you have to do is input the name of the file you want to find.

esearch is an extensible firefox-like searchbar seemless integrated within eclipse.

Search for MediaWiki based on Lucene. This is the daemon only, see mediawiki.org for the the PHP extension.

SCAN (Smart Content Aggregation and Navigation) is a universal semantic content aggregator. It combines search, text analysis, tagging and metadata functions to provide new user experience of desktop navigation and document management.

Web Page Application: https://shemeshg.github.io/desktop-search/ Github: https://github.com/shemeshg/desktop-search-code * Dropbox sync is performed manually (from admin screen) and not on interval.

Combine is an open system for crawling Internet resources. It can be used both as a general and focused crawler. If you want to download Web-pages pertaining to a particular topic (like 'Carnivorous Plants') Then Combine is the system for you!

Document summarization system. By adding document content to system, user queries will generate a summary document containing the available information to the system.

This package contains different tools to add NLP capabilities for Lucene 4.x (it has been tested using Lucene version from 4.6.x to 4.8.1). Although it was originally developed for German, it is, mostly, language independent. It allows the user to lemmatize words to be indexed, to weight termy ba their parts of speech (e.g. weighting nouns mor hevaily than pronouns), and to add synonyms taken from GermaNet or a list you provide to the search index and thereby increase recall of lucene.

This simple application will look for your site in Google's search listing for some keyword in first 10 to 1000 positions, if you are found you will be notified with the position. For more information go to www.whizbase.com

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.

Infofuze is a Java library and server application that can be used to transform and combine data from various sources into a specific XML or other text output format that can be stored or indexed.

Integra desktop search engine - cross-platform, portable, embeddable, extensible search engine and search tools (both console and GUI) for developers and end-users. Full unicode support, easy UI localisation, plugins for document parsers and unpackers.

Jake is a console based app written in python and qt4. Plugins will let you do almost anything, for example, search in google, translate, view images, talk with it (aka AI bot). Also, skining system will let you choose how should jake look.

The Java API search engine will allow users to search for Java classes that may be useful in the development of their current project

Lucino is a C-library with some support for reading and writing Apache Lucene-indices. It currently comes with PHP- and Python bindings.

Nucular Archiving System for creating full text indices for fielded data. Python API, web, and command line interfaces. Fast. Very light weight. Concurrent read/writes with no possible locking issues. No server process. Proximity. Facets. Funny name.

OpenEphyra is an open framework for question answering (QA). It retrieves answers to natural language questions from the Web and other sources. Visit http://www.ephyra.info/ for more details and information on joining this open research initiative.

Pinot is a D-Bus service that crawls, indexes your documents, and monitors them for changes. It is also a GTK-based user interface that enables you to query the index built by the service or your favorite Web engine, and display and analyze the results.

RegExpresso is a "regular expressions" tester, designed to integrate well into modern web browsers. Though it has few features compared to commercial products, it should be usefull to any programmer who uses regular expressions.

a Solr Based Semantic Mediawiki Store