Founded in March 2006 by Jack Dorsey, Noah Glass, Biz Stone, and Evan Williams as Twitter, it underwent a rebranding in July 2023 after being acquired by Elon Musk in 2022.

In 2000 he first considered using text and instant messaging (based on the principles of dispatch software) as a way of keeping in touch with friends. Six years later he approached Williams and Stone with his idea; together they developed a prototype of what would become the Twitter platform.