Why this HTML workflow breaks on iOS

ChatGPT, Claude, Gemini, and coding agents can hand users a real HTML file instead of a web link. On iPhone, that file may sit in Downloads or Files without a clear rendered preview.

The shortest answer

Install Html Preview, open the file from Files, the Share Sheet, or the source app, and preview it locally. The app has no subscriptions, no in-app purchases, and no ads.

The ChatGPT Claude viewer apps workflow

Open the exported HTML file from the source app, Files, or the iOS Share Sheet, choose Html Preview, and read the rendered AI output locally.

What to check before opening

This is a viewer workflow for files produced by AI tools, not a browser workflow for normal website URLs.

Why local preview fits this job

Html Preview is focused on file preview. It avoids uploads, account setup, ad clutter, and heavy editing features when the user simply needs to read an HTML file now.

If you also receive Markdown files

AI and document workflows often produce both HTML and Markdown. Md Preview is the companion viewer for that file type.