OpenSite.run lets you turn HTML, Markdown, folders, or zip archives into a live website in minutes. Just upload your files, pick a subdomain, and publish to get a public link you can share right away. It is built for simple static hosting, so you can host HTML, CSS, JavaScript, images, and fonts without touching servers or DNS. It also includes built-in analytics so you can track page views and visitors without adding extra scripts. The service supports up to 5MB total upload size and focuses on making website publishing fast, easy, and free for HTML sites.