Who developed the first version of HTML?

Tim Berners-Lee developed the first version of HTML. He created it around 1990 at CERN as part of the technical foundation for the World Wide Web, using markup to structure documents and connect them with hypertext links.

HTML was initially small and practical rather than the large, feature-rich language familiar today. Berners-Lee also created the first web browser and web server, allowing HTML documents to be written, stored, and viewed as part of one working system.

The first publicly available description, “HTML Tags,” appeared in 1991. Early HTML used elements for headings, paragraphs, lists, and links; later versions added richer layout, forms, tables, multimedia, and scripting support.

Marc Andreessen helped popularize the Web through Mosaic, while Brendan Eich created JavaScript and Håkon Wium Lie proposed CSS. Those contributions came later and should not be confused with HTML’s original development by Berners-Lee.