What year was Twitter founded?

Twitter was founded in 2006. The service began as an idea at Odeo, a podcasting company, where Jack Dorsey proposed a short-message platform for communicating with small groups. A prototype called “twttr” was developed in March 2006, and Dorsey posted the first message on March 21, 2006. The service launched publicly later that year.

Twitter was created by Jack Dorsey, Noah Glass, Biz Stone, and Evan Williams. The name was later changed from “twttr” to “Twitter,” and the platform grew rapidly after gaining attention at the 2007 South by Southwest festival.

A common mix-up is 2007, because Twitter, Inc. was incorporated as a separate company that year. However, the platform itself was created and launched in 2006, making 2006 the standard answer to this trivia question. Twitter was rebranded as X in 2023, but its founding date remains associated with the original Twitter service.