Wikidata

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Welcome to Wikidata

the free knowledge base with 83,776,441 data items that anyone can edit.

Introduction • Project Chat • Community Portal • Help

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Welcome!

Wikidata is a free and open knowledge base 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, Wiktionary, 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

For a complete starters’ guide, visit the community portal.

Learn about Wikidata

What is Wikidata? Read the Wikidata introduction.
Explore Wikidata by looking at a featured showcase item for author Douglas Adams (Q42).
Get started with Wikidata's SPARQL query service.

Contribute to Wikidata

Learn to edit Wikidata: follow the tutorials.
Work with other volunteers on a subject that interests you: join a WikiProject.
Individuals and organizations can also donate data.

Meet the Wikidata community

Visit the community portal or attend a Wikidata event.
Create a user account.
Talk and ask questions on the Project chat or via live IRC chat^connect.

Use data from Wikidata

Learn how you can retrieve and use data from Wikidata.

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News

2020-04-10: The ninety millionth item, about the galaxy "ZFOURGE UDS 19909", is created.
2020-03-28: Item Q88888888, about the star "PB 1934", is created.
2020-03-21: "electron configuration", property number eight-thousand, is created.
2020-02-17: Lexeme L250000, for the Slovak word riadenie ('management'), is created.
2020-02-13: The eighty-five millionth item, about the article "Determining knowledge and behaviour change after nutrition screening among older adults", published in 2010, is created.
2019-12-27: The eighty millionth item, about the artwork "Medal" is created.

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)
Property: highest point (P610)
custom value: Mount Everest (Q513)

Current highlights

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.

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

Contact

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