Japanese Wikipedia

You can help expand this article with text translated from the corresponding article in Japanese. (August 2011) Click [show] for important translation instructions. View a machine-translated version of the Japanese article. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Consider adding a topic to this template: there are already 1,291 articles in the main category, and specifying|topic= will aid in categorization. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Japanese Wikipedia article at [[:ja:ウィキペディア日本語版]]; see its history for attribution. You may also add the template {{Translated|ja|ウィキペディア日本語版}} to the talk page. For more guidance, see Wikipedia:Translation.

Japanese Wikipedia

Screenshot Main page of the Japanese Wikipedia in August 2023
Type of site	Online encyclopedia
Available in	Japanese
Owner	Wikimedia Foundation
URL	ja.wikipedia.org
Commercial	No
Registration	Optional
Launched	11 May 2001; 23 years ago (2001-05-11)
Current status	Active

The Japanese Wikipedia (ウィキペディア日本語版, Wikipedia Nihongoban, lit. 'Japanese version of Wikipedia') is the Japanese edition of Wikipedia, a free, open-source online encyclopedia. Started on 11 May 2001,^[1] the edition attained the 200,000 article mark in April 2006 and the 500,000 article mark in June 2008. As of November 2024, it has almost 1,438,000 articles^[2] with 12,480 active contributors, ranking fourth behind the English, French and German editions.

As of September 2024, the Japanese Wikipedia is the world's second most visited Wikipedia language edition after the English Wikipedia;^[3] it has been the second most viewed Wikipedia during most periods since at least 2008.^[4][5][6][7] It has a high proportion of anonymous contributors and one of the lowest admin-to-user ratios of any language Wikipedia.

The Japanese Wikipedia has been accused of historical revisionism by a number of scholars, especially its pages on World War II.^{[8][9][10][11]} Its culture has been described as hostile^{[12][13]: 16:00} and heavily influenced by the right-wing textboard 2channel.^[14][15]