Xapian Users

The following organisations are known to use Xapian. Please let us know if you know of any more!

Search Websites

Citebase
Application: Searching academic papers
Languages: Mostly English
Database size: around 300,000 papers
Srpko
Application: Searching documents related to Serbia and Montenegro
Document types: Web pages, News articles, Wikipedia pages, Dictionary entries
Database size: over 8.4 million pages
Library of the University of Cologne
Application: Searching the library's OPAC (Online Public Access Catalogue) with OpenBib
Languages: German
Database size: over 5.2 million title entries split across 133 separate databases

Die Zeit - German Newspaper
Application: Searching newspaper articles; also powers internal search facilities for newspaper staff.
Languages: German
ABC Startsiden
Application: Search through 3 years worth of Norwegian news
Location: ABCSok
Languages: Norwegian
Document types: News stories
Ananova - a News website
Application: Used internally to allow journalists to search archives of news stories
Languages: English
Document types: news stories
Note: The archive search was available to the public, but Ananova have now removed it from their public site.
Osservatorio Balcani (The Observatory on the Balkans)
Application: Searching articles about the Balkans
Languages: Italian, English, and others

Tweakers.net - the largest Dutch ICT-website
Application: Forum search engine
Languages: Dutch
Document types: Complete forum discussions
Database size: Over 850000 documents, about 15GB of uncompressed, 10GB compressed database size.
TheyWorkForYou.com
Application: Searching Hansard, the UK House of Commons Official Report; also email alerts
Languages: English
Database size: around 500,000 documents; 0.5G of source data.
React - Supplier of Forum Software
Application: Searching discussion forums - sites include the city of Amsterdam, the dutch broadcasting organization VPRO, Webpiraat, and GKV (a dutch interchurch organization)
Languages: Dutch
Document types: forum topics
Database size: around 900,000 topics
Davis Wiki
Application: Searching a wiki for Davis, California, USA
Document types: wiki pages
Database size: over 10,000 pages
RocWiki
Application: search for wiki about Rochester, NY, USA
Document types: wiki pages
Database size: around 3,000 pages
mysociety.org
Application: web api to gazeteer service, built using Search::Xapian
spin.de
Application: Free online community with profiles, chat, boards, blogs, games, and more
Languages: German
Document types: User profiles, forums, mails, and help documents
Database size: 1.89 million documents to date
wiki spot
Application: Searching across hundreds of wikis
Document types: Wiki pages
Database size: around 25,000 pages

Gmane
Application: Searching archives of mailing lists (Gmane allows these to be viewed as newsgroups, or on the web)
Location: search.gmane.org
Database size: 52 million messages and counting!
Debian Mailing List Search
Application: Searching mailing list archives
Languages: Danish, Dutch, English, Finnish, French, German, Hungarian, Italian, Portuguese, Romanian, Russian, Spanish, Swedish, and Turkish
Database size: 3.5 million messages
Qoop - Online Auction Site
Application: Searching online auctions
Languages: Dutch
Database size: around 850,000 documents
Cambridge City Council
Application: Providing an FAQ search
Languages: English
Database size: designed to support at least 30,000 questions/answers
Orange - mobile phone company
Application: WAP search for users of Orange mobile phones
Divmod - Webmail and VOIP provider
Application: Searching email
ProCare Stores
Application: Product Search for on-line store
Database size: 9000 products
grokbase
Application: Searching mailing list archive
Debian GNU/Linux
Application: Searching Debian's archive of software packages
ClickChronicle
Application: Searching web-browsing history
i use this
Application: Providing a way to organise your Mac OS X applications and discover new ones
mydeco
Application: Home decoration website

Recoll
Application: Recoll is a personal full text indexing system
Pinot
Application: Pinot is a metasearch tool for the Free Desktop
one laptop per child
Application: The One Laptop Per Child (OLPC) project is building a low-cost laptop for use by children in developing countries. The datastore search is implemented using Xapian.

Roundup
Application: Roundup is an Issue Tracker which can use Xapian for searching
Sycamore Wiki Engine
Application: Wiki Engine with built in Xapian-powered search
MailManager
Application: Open source web application providing email management for customer service, help desk, etc.
MoinMoin
Application: Wiki software with Xapian search (as of version 1.6)
LXR
Application: Experimental version of LXR, the Linux Cross Referencer

Catalyst
Catalyst is a Web Development Framework which includes support for using Xapian as a search engine.
Synd
Synd is a software framework written in PHP, used primarily for building dynamic websites. It allows Xapian to be used to provide an integrated search engine.
Djapian
Djapian provides integration between Xapian and Django (a high-level Python Web framework that encourages rapid development and clean, pragmatic design).
Flax
Flax is an enterprise search platform based on Xapian, with a web-based administration system, scheduled indexing, and more. It's written in Python.
Venda Ltd
Application: Searching products on numerous ecommerce sites including The BBC Shop, British Telecom's Shop, and Mothercare.
Document types: SQL database records