Can I run local HTML and JavaScript on iPhone?

Quick answer

Many self-contained HTML and JavaScript pages can run in a WebKit view. Pages that need a backend, remote APIs, or special browser features may still need hosting.

Why this happens

There is a difference between viewing HTML source, previewing a document, and running a web page in a web engine.

What you can try

If the HTML is self-contained, open it locally. If it fetches server data or relies on a backend route, deploy it or run a server.

When HTML Pocket helps

HTML Pocket is best for local HTML tools, small games, reports, mockups, and AI artifacts that do not require a server.

• Open .html and .htm files
• Import ZIP web projects
• Render with the system WebKit engine
• Keep a local history of opened pages

Limits

• It does not edit HTML source code.
• It does not repair broken HTML, missing files, or server-only code.
• It is not a public hosting service or a full browser.