Feel free to add your software/website here if it makes use of Lucene. Please do not add your website if it uses Lucene merely indirectly, e.g. if you make use of a blog publishing system which in turn uses Lucene. We reserve the right to remove links where it isn't visible that Lucene is used, so consider adding a text like "powered by Lucene" to your search result page.

Note to spammers: don't bother adding your site here, we're using the appropriate meta tags so search engines will ignore the links anyway. Also note, if you don't at least provide some hint at how you use Lucene (i.e. by mentioning the word for instance), your link will be treated as spam. For example: Site Foo uses Lucene to provide search and highlighting.

Applications and web applications using Lucene include (alphabetically), see below for usage of Lucene on web sites:

  • 30 Digits Information Discovery Suite - A search application with ready to use front-end, graphical web administration, security, statistics, taxonomy navigation, faceting, topic alerts, user profiles, data extraction for multiple sources, and more. It is also avaialbe for multiple languages i.e. English, German (Deutsch), Spanish (Español).
  • 7digital - digital media delivery company
  • AOL
  • Ausmalbilder, Malvorlagen, Mandalas und Stundenplan Vorlagen - German platform using Lucene-Java
  • ActiveMath - a user adaptive, interactive and web-based learning environment for mathematics
  • Ad Dynamo - a contextual advertising delivery platform, using Lucene to match each page of web content to best fit ads
  • AdServing - open source adserver, ads are stored in a lucene index and selection is done with lucene queries
  • Aduna AutoFocus - a visual desktop search tool
  • Aduna Metadata Server - RDF-based indexing server for metadata and full text
  • Affidata - a real estate search engine that uses lucene for Advanced Search Functionality
  • Affiliate Ranker - an affiliate program search engine
  • Kostenlose Referate und Hausarbeiten
  • agorum core DMS - Open Source DMS (Document Management System). Uses lucene for full-text and metadata search. Index is completely stored withing Database (for transaction issue)
  • AideRSS - PostRank - Blog filtering and ranking based on social media metrics
  • alike - alike is an open source image search framework. demo is available
  • Alisveris Robotu - Product and price comparision site in Turkey
  • AIMstor Backup - Backup and Recovery application that uses Lucene to index backed up files and their metadata. Also uses Lucene to store its logs.

  • Antya - Website discovery engine powered by Lucene [displays Websites, logos, address]

  • Apache Jackrabbit - JCR content repository, with full text search powered by Lucene Java
  • Apple
  • Australia Unclassified - Australia's 100% FREE online classifieds service
  • baydragon - a trading card online shop that uses lucene to search products, comments and single cards.
  • Benipal Technologies - We are heavy Lucene users and have forked the Lucene / SOLR source code to create a high volume, high performance search cluster with MapReduce, HBase and katta integration, achieving indexing speeds as high as 3000 Documents per second with sub 20 ms response times on 100 Million + indexed documents.
  • BNCF Opac - Online Public Access Catalog, indexing data in unimarcslim format
  • Best Rates Call - Prepaid phone card price comparison site compares pre-paid phone cards and international calling cards online between phone card service providers, helping consumers find cheap phone card that offers best calling rates to selected destinations. Best Rates search uses lucene.
  • BibleDesktop - A Bible study program using lucene to search Bibles
  • Bigsearch.ca - uses nutch, based on lucene open source software to deliver its search results.
  • Bixee - Search Engine for Jobs in India.
  • Bridge Loan - Java based financial site. It replies on Lucene for main operation.
  • Care.com - A site that connects families with caregivers (ie babysitters, nannies, etc). Uses Lucene to drive location-based search results, refine search, and full-text search.
  • Celoxis - web based project management tool
  • CiteSeerX - academic document search engine.
  • ClicketyView - shopping site using Lucene for product search and categorisation
  • Cloudspace - consulting company using Lucene on client projects for search and more general text-information retrieval
  • CodeCrawler - is a smart, web-based search engine specifically built for use by developers for searching source code.
  • Comcast
  • Coolposting - a search engine for discussion forums. Coolposting helps you find the real solutions, experiences and opinions people have posted in different discussion forums.
  • Corinis CCM - a web content management and community system
  • CvMail - web based tool for recruiters (to manage job-applications by mail)
  • DBSight - search engine RAD tool on any database, without changing existing schema, highly scalable and customizable. Web based, no Java/Lucene experience required, good for learning Lucene. Unlimited Index Size.
  • dLibra Digital Library Framework - First Polish digital library software platform developed by the Poznan Supercomputing and Networking Center (PSNC).
  • DealsKing - We're using Lucene as backend for our deals
  • Detik.com - Search Engine for www.detik.com, largest news portal in Indonesia
  • dialo.de - yellow and white page directory for Germany. Users review businesses to determine the best restaurants, doctors and so on spatial search on top of lucene.
  • Digital Case - Case Western Reserve University's digital library, repository and archive, stores, disseminates, and preserves the intellectual output of Case faculty, departments and research centers in digital formats.
  • Disney
  • DocJar - search engine of thousand open source Java API document.
  • DocuXplorer Document Management Software - Multi language document management & translations
  • dotCMS - Open source java CMS that uses lucene to drive customized and dynamic content
  • DynaQ - Open Source Desktop Search application. Stable, and state of the art research prototype, implementing information retrieval techniques for the masses (wink) Our goal is to provide innovative functionality, with the focus on usability and 'joy of use'.
  • Dynamicweb CMS - ASP.NET-based content management system that uses Lucene for providing advanced search capabilities for its eCommerce platform.
  • eRez Imaging Server - Dynamic Imaging Server
  • eccenca - eccenca Community Engine is the first information access solution, based on the Eclipse SMILA framework, featuring lucene.
  • Eclipse - the Eclipse IDE uses Lucene for searching its documentation
  • Eclipse SMILA - Eclipse SMILA (SeMantic Information Logistics Architecture) uses lucene as search engine. SMILA is an extensible framework for building search solutions.
  • Egnyte - Web 2.0 content sharing solution that combines sharing, automatic organization and a powerful search capability. Using continuous synchronization, Egnyte seamlessly integrates the desktop with the web.
  • elvis - media content and digital asset management revolution
  • Enormo is a real estate search engine that uses lucene to index it's database of listings.
  • EnterpriseMetasearch - a customizable federated search engine that may use Lucene together with other data sources.
  • eOfficeo, a collaborative platform - eOfficeo, collaborative platform
  • ewmix - Brazilian e-commerce based on Apache Wicket uses Lucene for searching products.
  • Expert Reviews - Expert reviews of digital products and services powered by Lucene.
  • Eyebrowse - a browser for Unix mbox format mail archives
  • Faayda - Job search engine for India powered by Lucene.
  • Familie Gutschein - Solr-powered crawler scanning the web for new coupons and offers
  • FastFind - A Desktop Search that index the names of your files and permit lightning fast retrieval using regular expression queries.
  • Far Cry 3 Review - A video game reviews directory, using Lucene to deliver the content to the user
  • Filestar - A simple but powerful document management and scan-to-archive application.
  • FimsiCobra - A scalable Content Based Routing engine.
  • FindersCheapers.com - A price comparison engine. We use Lucene for intermediate product/price groupings and for our front end search.
  • Finervista - A vertical-search engine for business and IT online seminars and webcasts.
  • Forum Software - Yazd discussion forum software uses Lucene to search through the messages.
  • Frisim - News search engine for Swedish news
  • Furl - Your web page filing cabinet
  • GFX-Sector - German graphics community, using Lucene-java
  • Game Change - Spiele Tauschen - a trading platform for every gamer. Change your games for free and easy (Germany)
  • GenSphere Genealogy Search - Genealogy search engine based on Lucene and Nutch
  • Gutscheindrache.de - German Couponing platform using Lucene-Java
  • Gutschein Rausch - German voucher community
  • Gutscheinfreund.de - A german search-engine for coupons. Based on a mixture of Struts2,Spring and Lucene instead of mysql
  • Gutscheinpony.de - We use a combination of Droids, Nutch, Solr and Tika for our crawler for searching the web for new coupons
  • Gutschein / Code - A german Voucher Forum (german) based on vBulletin and using Apache Lucene-Java SE.
  • Hallo Welt! has developed an enterprise wiki HalloWiki on the basis of the famous MediaWiki engine. Lucene search is a very strong part of this solution and helps finding articles, files and also content in files.
  • Hanajobs.com - a job search engine dedicated to high salary jobs
  • HandyBundle-Finden - German site for mobile phone bundles. Based on a custom developed lucene based nosql database.
  • Helprace - Customer service software with a help desk and community feedback tools. Lucene is used in search indexing, organization of the knowledge base.
  • Hi5
  • Hitflip - trading plattform for DVDs, books and games (German)
  • homeowner list - Database of homeowner list and residential level
  • Hotels and Accommodation - A hotel & accommodation comparison engine. We use Lucene for product/price groupings and for our front end search.
  • IBM
  • IBM OmniFind Personal e-mail Search - A powerful semantic search engine for your e-mail
  • IBM OmniFind Yahoo! Edition - a no-charge, entry-level enterprise search software solution
  • ICEcore - JSR 168 compliant portlet that allows users to create data definitions and then store and index data for that definition. ACLs associated with the data also get indexed within Lucene allowing searches to only produce data users are allowed access to.
  • iFinder - intranet search and web monitoring (German)
  • Inperspective - geo-search technology
  • InstaSearch - Eclipse plug-in for quick code search
  • IntraCherche - Enterprise search engine that also handles scanned PDF. Indexed documents reside on shared folders and the generated (by Lucene) index is also located on a shared location.
  • Intrallect intraLibrary: Learning Object Repository - web-based system for managing learning content
  • iphonecard.com.au - Australia Online Prepaid Phone Card Store, lucene indexes all phone card data
  • iterend.com - Blog search & discovering engine powered partly by lucene.
  • JAMWiki - A Java-based Wiki whose goal is Mediawiki feature-parity.
  • JIRA - issue tracker
  • JobHits - A search engine for jobs powered by latest Lucence to index jobs from many job boards and company websites. JobHits uses facet, collapse, highlight and spatial component with ~2.1 million queries per day at rate of 34 ms per request on average. JobHits has 3 localized versions in UK, US and Canada
  • jLibrary - Open Source Document Management System
  • JANE - Journal Author Name Estimator
  • Jaeksoft Open Search Server - An OpenSource Search Engine based on Lucene with a web crawler, XML APIs, web interface, faceting, collapsing, etc.
  • JiansNet - A platform for searching and sharing useful information for overseas Chinese
  • jobs in time - company homepage including a job search engine
  • karakoram - spider, indexing, search & reporting
  • Katta - Open Source Distributed Lucene Index Serving.
  • Keeca Coupon Search - a search engine for smart consumers to find online coupons
  • Keljob.com Cv Search Engine - a curiculum vitae search engine
  • Kentriki Stores - the first Social Commerce Site in Latin-America uses SOLR/Lucene to provide users with rich full-text search, facets and filters
  • Kitsite - hosted content management
  • KnowledgeTree Document Management Software - Turnkey, open source document management software that connects people, processes, and ideas.
  • Krugle - search-driven development system for programmers
  • LIUS - is an indexing Java framework for files(XML, HTML, PDF, Word, Excel, PowerPoint, RTF, TXT and OpenOffice Suite), XML nodes and JavaBeans. It also includes search and index update capabilities.
  • Lan-Crawler.Net Lan-Crawler is a crawler and indexer of public network files shared via SMB shares (Windows shares and UNIX systems running Samba). Meta data is downloaded for films and music. A dynamic Web UI is provided for searching files.
  • LiQED - University of Edinburgh's QED Question Answering module for list questions
  • Limax ORM using Lucene as primary persistence.
  • Linguatools - online search in a large translation archive (german <-> english, german <-> czech)
  • Lingway KM multilingual and semantic search solution
  • LinkedIn
  • LogicalDOC DMS - A Web 2.0 Document Management that uses Lucene for full text indexing and search of documents. LogicalDOC retains many Lucene indices: one for each language enabled, also it uses different analyzers to correctly handle the various languages
  • Lookeen Search - Lightning-Fast Search of Files & Emails. Alternative to Windows Desktop and Outlook Search. Works with Outlook, Exchange Servers and on virtual desktop infrastructures - powered by Lucene.
  • LuceneBook.com "search inside" the book, merged with a blog and dynamic Table of Contents
  • Lucignolo Content-Based Image Retrieval System for searching over the CoPhIR dataset consisting of 106 millions images taken from Flickr .
  • MIT DSpace Federation - document archive
  • MMA - Mixed martial arts website with search engine powered by Lucene.
  • MMBase Lucene Module - A plugin (module) for the MMBase content management system that enables Lucene full text search through it's content.
  • MakeTime for Salesforce Search UI for Salesforce, lots of Ajax, column filtering, range search, as-you-type prefix search, etc.
  • Makrolog Content Management AG - your one stop for E-Publishing solutions
  • McGutschein - German Website using search engine for the search of coupons and vouchers, based on a mixture of Lucene, Struts2 and Spring
  • MindRetrieve - A desktop tool to search and organize the web you have seen
  • Mitula.com - Search Engine Property
  • Mozdex - Search Engine
  • MusicBrainz - user-maintained community music metadatabase. Music metadata is information such as the artist name, the release title, and the list of tracks that appear on a release. MusicBrainz collects this information about recordings and makes it available to the public.
  • Mustang mieten - A german classic mustang rental website. We use Lucene for our front end search.
  • myJaco Coupons - online coupon search
  • MyOffice24x7 ERMS - Small and Medium Enterprise records and document management system, RFID - based document search and tracking.
  • Nabble - search mailing list archive, for example, search Lucene/Nutch archive.
  • NewsArch - open mailing list and newsgroup archive
  • NoDB - A prevalent object repository with indexing capabilities. It is a general purpose in memory repository for use in any Java applications.
  • Nootes.org - Web page used for sharing and saving academic documents, with 13 supported file formats, and support for 6 languages
  • Nordfrim - Postal Stamp Shop - search over 9000 products. (Danish & German)
  • Nutch - open-source web search engine
  • Nuxeo ECM - a full-featured, open source, standards-based Enterprise Content Management platform, with a component-based and service-oriented architecture
  • O3Spaces Document Management and Collaboration - A Web 2.0 Document Management & Collaboration Solution for OpenOffice.org, StarOffice and MS Office users that uses Lucene for o.a. full text indexing of Workplace documents
  • Odin Jobs - Job Match engine built on top of lucene that returns the most relevant jobs based on job seekers qualifications and preferences. The match engine uses lucene to index 3 million IT jobs every 48 hours. The match engine directly uses the IndexSearcher (without query parser) to match a resume with a job description.
  • Omgili - An innovative, advanced search engine for web-based discussion forums.
  • Online Commons - powerful tools for the organizing, searching, and viewing of information
  • OpenGrok - a "wicked fast" source code search engine with cross-referencing various program file formats, including browsing and navigation for version control systems like SCCS, RCS and CVS.
  • OpenMercury - an open-source java-based content management framework, using Lucene for in-site webpage searches, a CRM module, and customer specific searches like a product searches
  • OpenMRS - a community-developed, open source, enterprise electronic medical record system platform, using lucene in the search module.
  • PDFind - A document repository supporting PDF, ODF, MS Office, and plaintext search. Allows fulltext search of contents and lets uses extend the application with their own plugins. Uses lucene for search and indexing.
  • panFMP - PANGAEA Framework for Metadata Portals
  • Pauker - Open Source flashcard learning application using a combination of ultra-shortterm, shortterm, and longterm memory
  • PCRecruiter - Cloud based HR staffing software
  • Perth Web Design - Web development solution using Lucene for internal searches.
  • Property Management Companies - Uses Lucene for search and indexing of vertical markets.
  • PolySpot - Enterprise Search Solution based on Lucene.
  • Portuguese Web Archive Preserves web contents and provides a search service over information that is no longer available online.
  • Puggle - An open-source desktop search engine that uses Lucene for full-text and metadata search
  • pulse - the web application framework uses Lucene for all full-text searches (through Hibernate Search) and supplies a set of custom Lucene filters
  • quelea - An open source church projection program that uses Lucene to search through its database of songs
  • Razuna - An open-source Digital Asset Management (DAM) / Media Asset Management (MAM) with a integrated Web Content Management (CMS) that uses Lucene for full-text and metadata search
  • recht.makrolog.de - Recht für Deutschland - complete Archive of German legislation (more then a million pages!)
  • Red-Piranha Web / Command Line Search and Knowledge Management Tool that can actually 'learn' what you are looking for.
  • regain - Open-source desktop search engine. Supports the common file formats (Word, Excel, Powerpoint, OpenOffice / StarOffice, PDF, RTF, HTML and more). Indexes both file systems and web sites. Also usable as server-side search.
  • Rivièra Online - Consulting company using Lucene on client projects and on its own web site.
  • Roller - open-source Java blogging tool
  • S'lifter Comparison shopping for local products on mobile devices.
  • SCAN - Smart Content Aggregation and Navigation. Desktop content aggregator, search engine, tagging and metadata framework.
  • Scarab - issue tracker
  • Schiel & Denver Book Publishers - provides open-source book publishing services - Self Publishing facility for independent authors
  • Schiel & Denver Book Publishers UK - UK division provides open-source book publishing services
  • Search Venture Capitals - search over 1500 venture capital web sites
  • search-the-quran.com - Quran Search Engine that currently seaches the English translation only. Ability to search the original Arabic Quran will be added soon (God willing)
  • sharehound - Open source file systems index and search application. Currently supported protocols are SMB (file shares in MS Windows-based networks) and FTP. Doesn't consider file contents - only file path and name are indexed. Web UI is used for search and crawl monitoring. Search can be limited to single directory and optionally its subdirs. RSS feed is available for search results.
  • Simpy - social bookmarking and personal search engine
  • SiteSearch - web site indexer/search engine
  • SnipSnap - weblog and wiki Software
  • DocuXplorer Software de Gestión Documental - Multi language document management & translations
  • Speedy Organizer - small business document management - paperless office
  • Spiderline - hosted custom search engine service
  • Stilivo - discovery shopping site focused on clothing, shoes and accessories.
  • Spindle - web indexing/search tool
  • SubEtha - open source java mailing list manager, including searchable archives
  • SysAid Free Help Desk Software - Web Based Help Desk Software – Help Desk, Inventory and Project Management
  • TheCarePost.com - An online marketplace that connects families with nannies, babysitters, and more. Our search engine is powered by Lucene.net
  • Theodore Champion boutique timbres - Postal Stamp Shop - search over 9000 products. (French)
  • Tokenizer - domain specific Internet Search Engine. Constant crawl of over 10000 online stores in America & Europe; data mining; price engine; heuristic categorization.
  • TopGutscheinCode - German Voucher website uses Apacha to to save voucher codes in a central place
  • TrackStudio - issue tracker
  • TrailBlazer - Web browser history prototype implemented in Obj-C/Cocoa
  • TV Feeds - Interactive searchable database of television programming powered by Lucene.
  • Twitter Trends - Twitter analyzing Tool
  • USAjobs Inc. Job Search - job search engine
  • Ufnasoft-DMS - Java based Document Management System
  • VFinity - Browser-based enterprise media asset management system, offering web-integrated production through its 1-Click Launch feature into desktop applications. Uses Lucene.net to perform indexing on millions of assets and to enforce metadata-driven security.
  • VYRE - Content management system
  • VYRE Unify content management platform - JEE content management system uses Lucene as a core module
  • vd-bw.de Vorschriftendienst Baden-Württemberg - german state law web site
  • Veoh Networks - A leading online video system
  • Visual Analytics Inc. - VisuaLinks® - The Pattern Discovery Software
  • VoilàSVN by Arcetis - Subversion search engine
  • WebLab-project - the WebLab platform offer a simple integration of Lucene/SolR as basic text index/search service for demonstration. More advanced integration are proposed including the integration of SolR search support options.
  • Wohnmobil mieten - German rental marketplace for motorhomes, using Lucene to match each page of web content against the search results.
  • Wolfram Research, Inc. - Wolfram Research uses Lucene for internal tools, the Demonstrations project, the Mathematica documentation search and site searching.
  • WikiDo - Search engine for local events search-able by city and updated daily in USA. Search over 600.000 concerts, sports, theater shows, nightlife, kids activities and arts events (Current Beta is limited to the USA).
  • XWiki - A second generation wiki engine, uses Lucene as one of its search implementations.
  • Xoopit - Find and share the pictures, videos, and files buried in your inbox. Currently for Gmail.
  • zefaimages - stock images search engine
  • Zilverline - personal/intranet search engine as a complete web application with support for Word, PDF, HTML, Excel, Powerpoint, Text, Java, ZIP, CHM, RAR and more.
  • Homeowners Marketing Services Inc. - A leading compiler of US address, real estate deeds and new homeowners data into a unique list with powerful online query tools and unix based backend

Web sites using Lucene include (alphabetically):

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