Wikidata:Main Page

Welcome to Wikidata

the free knowledge base with 14,830,480 data items that anyone can edit

Introduction • Project Chat • Community Portal • Help

  Welcome!

Wikidata is a free linked database that can be read and edited by both humans and machines.

Wikidata acts as central storage for the structured data of its Wikimedia sister projects including Wikipedia, Wikivoyage, Wikisource, and others.

Wikidata also provides support to many other sites and services beyond just Wikimedia projects! The content of Wikidata is available under a free license, exported using standard formats, and can be interlinked to other open data sets on the linked data web.

  Get involved

Explore the project:

• Learn all about Wikidata and how it works
• Check out a showcase item for author Douglas Adams
• Browse the Frequently Asked Questions
• Understand how to navigate the site
• Test out the software at the Wikidata sandbox
• Find help and relevant documentation

Start contributing:

• Find out how you can contribute
• Take an interactive tutorial and make your first edits
• Improve a random item
• Organize or attend an event

Go behind the scenes:

• Drop by the Community portal
• Say hello or ask a question on the Project chat
• Join a WikiProject to start working with others on a specific task or topic

Use or contribute data:

• Find out how to use the data in your tools (via API or database dump)
• Find out how you can contribute data

  News

• 2015-07-17: "CPDL ID", property number two-thousand, is created.
• 2015-07-07: Wikibase Quality Extensions have launched. Now we can view the constraint report of an item.
• 2015-06-01: Arbitrary access for Italian Wikipedia and all remaining Wikisource projects has launched.
• 2015-05-28: The twenty-millionth item, about an encyclopedia article of archery, is created.
• 2015-05-11: Arbitrary access for Dutch Wikipedia and French Wikisource has launched.
• 2015-05-06: Arbitrary access for Dutch Wikipedia and French Wikisource is planned to start May 11th.

More news... (edit [in English])

  Learn about data

New to the wonderful world of data? Develop and improve your data literacy through content designed to get you up to speed and feeling comfortable with the fundamentals in no time.

• 

  item: Earth (Q2)

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  property: highest point (P610)

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  custom value: Mount Everest (Q513)

  Discover

Innovative applications and contributions from the Wikidata community

Featured WikiProject:
WikiProject Names.

"What's in a name?" asked Shakespeare's Juliet.

The answer: a lot of rich data in need of structure and new properties. But thanks to growing user contributions and the work of a new WikiProject, Wikidata is getting better at supporting name-related data—and can tell you that Juliet also goes by Julika, and Giulia, and Hülya, and Liana, and Uljana...

More:

• Check out Wikidata:Tools for some of our best tools and gadgets for using and exploring Wikidata.
• Browse our press clippings and collection of published research about Wikidata

Know of an interesting project or research conducted using Wikidata? You can nominate content to be featured on the Main page here!

  Contact

• Wikidata mailing list
• Wikidata technical mailing list
• Discussion requests for specific topics
• Facebook, Google+, identi.ca, Quora, Twitter

• Leave a message at project chat
• Chat on IRC^connect
• Contact the developers
• Wikidata Community User Group
• Keep up-to-date: Weekly summaries

Wikidata is part of the non-profit, multilingual, free-content Wikimedia family.

 Wikipedia – Encyclopedia     Wiktionary – Dictionary and thesaurus     Wikibooks – Textbooks, manuals, and cookbooks     Wikinews – News     Wikiquote – Collection of quotations     Wikisource – Library     Wikiversity – Learning materials and activities     Wikivoyage – Travel guides    Wikispecies – Directory of species     Wikimedia Commons – Media repository     Incubator – New language versions     Meta-Wiki – Wikimedia project coordination     MediaWiki – Software documentation