Drag an .html file anywhere on this page, or choose a file.
No signup. No build step. The link works immediately.
Your HTML is hosted exactly as you wrote it — nothing is rewritten or restyled.
The usual options all assume you are running a project. Netlify and Vercel want an account and a build; GitHub Pages wants a repo and a commit; a VPS wants you to be in the business of running a VPS. For one file that somebody needs to look at once, that is a lot of machinery. Dropping the file here gives you an https link straight away. Nothing is installed, nothing is configured, and there is no pipeline left behind to maintain.
Opening it on a phone instead? See open HTML on your phone.