Tumblr

Tumblr
	Screenshot Homepage showing a feed
Company type	Subsidiary
Available in	15 languages
	List of languages Chinese (Simplified and Traditional, including Hong Kong and Taiwan), English, Dutch, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Polish, Portuguese (Brazilian and Portugal), Russian, Spanish, Turkish
Founded	February 2007
Headquarters	San Francisco, California, {{{location_country}}}
Country of origin	United States
Founder	David Karp
Key people	Matt Mullenweg (former CEO)
Industry	Microblogging, social networking service
Employees	411 (as of June 2017)
Parent	Tumblr, Inc.
Website	tumblr.com
Registration	Optional (required for blogging and reblogging, commenting, liking and following blogs)

Tumblr (/ˈtʌmblər/ TUM-blər) is a microblogging and social media platform founded by David Karp in 2007 and operated by American company Tumblr, Inc., a subsidiary of Automattic. The service allows users to post multimedia and other content to a short-form blog. It has attracted significant attention and controversy for hosting a wide range of progressive user-generated content.