How do I preview a local HTML file online?

Drop the .html file onto this page and you get an https link immediately. It renders the way a real web page would, which is not what double-clicking gives you.

Why is the styling broken when I double-click it?

Double-clicking uses the file:// protocol, which browsers restrict far more than https. External stylesheets, fonts, and network requests can all be blocked, so it does not look the way you expect.

Can I view a local HTML file on my phone?

Usually not directly — most mobile browsers cannot open local files. Once you have a link it opens on a phone like any other web page.

Does this work for AI-generated HTML?

Yes, and it is one of the most common uses. Single-file HTML from an AI usually carries its own styling, so it renders fully as soon as you drop it in — and it is easy to pass on to someone else.

Is my file uploaded to a server?

The file is processed in your browser; only the published page is served. Links made without an account expire after 7 days. Sign in to keep them indefinitely or delete them at any time.

How large a file can I use?

Single-file HTML is generally fine. If your page depends on separate files in the same folder (standalone CSS, images), inline them into one HTML file first.

Plain.

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Your HTML is hosted exactly as you wrote it — nothing is rewritten or restyled.

Why double-clicking looks wrong

Double-clicking an HTML file opens it over file://, which is not the same thing as a real page on https://. Plenty of things quietly break there: loading external resources runs into cross-origin rules, fetch and some JavaScript fail outright, and fonts or images on relative paths tend to go missing. Phones are worse — most mobile browsers cannot open a local file at all. Publishing a link just puts the page back in the environment it was written for.

Common questions

How do I preview a local HTML file online?: Drop the .html file onto this page and you get an https link immediately. It renders the way a real web page would, which is not what double-clicking gives you.
Why is the styling broken when I double-click it?: Double-clicking uses the file:// protocol, which browsers restrict far more than https. External stylesheets, fonts, and network requests can all be blocked, so it does not look the way you expect.
Can I view a local HTML file on my phone?: Usually not directly — most mobile browsers cannot open local files. Once you have a link it opens on a phone like any other web page.
Does this work for AI-generated HTML?: Yes, and it is one of the most common uses. Single-file HTML from an AI usually carries its own styling, so it renders fully as soon as you drop it in — and it is easy to pass on to someone else.
Is my file uploaded to a server?: The file is processed in your browser; only the published page is served. Links made without an account expire after 7 days. Sign in to keep them indefinitely or delete them at any time.
How large a file can I use?: Single-file HTML is generally fine. If your page depends on separate files in the same folder (standalone CSS, images), inline them into one HTML file first.

Want to send it to someone? Try HTML to URL — same tool, framed around sharing.