“HTML 5” or “HTML5”?

Published on Sep 11, 2009 (updated Apr 22, 2024), filed under development, html. (Share this post, e.g., on Mastodon.)

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It’s “HTML5,” not “HTML 5,” declares the most recent post on the WHATWG blog. A seemingly trivial matter, yet compare that to names of other HTML specifications: HTML 2.0, HTML 3.2, HTML 4.01, XHTML 1.0, XHTML 1.1, XHTML 2.0.

Calling HTML 5 “HTML5” is inconsistent and grammatically wrong. I don’t understand the decision. Personally, I’ll continue to reference this version of HTML as… HTML 5.

About Me

I’m Jens (long: Jens Oliver Meiert), and I’m an engineering lead, guerrilla philosopher, and indie publisher. I’ve worked as a technical lead and manager at various companies (e.g., Google); I’m an active web and tool developer (code optimization, digital defense), a contributor to web standards (like HTML, CSS, WCAG), and a book author (O’Reilly, Frontend Dogma). Stay in touch.