Free online MHT to HTM converter

A CMS, browser, or web editor may require a normal HTML document instead of an archived MHTML file. Converting an MHT file creates an .htm document that can be edited, published, or inspected, although images and other resources may be extracted separately.

What the MHT format is

MHT, also called MHTML or MIME HTML, is a multipart/related archive containing an HTML page and related resources such as images, CSS, scripts, and sometimes fonts. MIME headers, boundaries, and encoded resource parts allow the complete page to be stored in one file.

Internet Explorer and older Microsoft Office applications commonly created MHT files with Save As → Web Archive, single file (*.mht). Legacy Windows applications, exported reports, archived web pages, and email attachments can also contain MHT files. An MHT file is not an ordinary HTML document with a different extension, so a code editor may display MIME headers instead of usable page markup.

What the HTM format is

HTM is an alternative extension for HTML and is equivalent to .html. It contains page markup that browsers, code editors, CMS platforms, and web publishing tools can read directly. Images, stylesheets, scripts, and fonts are normally stored in separate files or referenced by URLs, although HTML can also contain inline data.

HTM is preferable when a target system accepts HTML but not MHTML, or when the page must be edited, inspected, uploaded, or placed on a web server. Unlike MHT, it does not preserve the original single-file resource packaging.

How to convert MHT to HTM

Using 101convert.com

1. Open the MHT-to-HTM converter on 101convert.com. The conversion can be performed without installing desktop software.
2. Upload the file ending in .mht or .mhtml.
3. Select HTM as the output format and start the conversion.
4. Download the resulting .htm file. If the result includes a resource folder or archive, keep it with the HTML file; otherwise images, styles, or scripts may not load.

Do not upload confidential pages or reports to any online service unless its handling of uploaded files is acceptable for the material.

Using legacy desktop software

1. Open the MHT file in an application that supports MHTML. Internet Explorer can perform this task on an isolated legacy Windows system, but it is retired and should not be used for normal browsing.
2. Choose File → Save As.
3. Select Web Page, complete (*.htm; *.html), not Web Archive, single file (*.mht).
4. Save the page and retain the generated resource directory beside the HTM file.

Microsoft Word can open some MHT files and save them as HTML, often through File → Save As and a web-page or filtered-HTML option. Word may rewrite the markup and change CSS, layout, scripts, forms, or interactive content, so it is better for extracting readable content than for preserving a working web page.

Quality and compatibility limitations

• Test the HTM file together with its resource folder. Moving only the HTML file commonly causes missing images, stylesheets, or scripts.
• Inspect resource paths after conversion. MIME content references are usually rewritten as local filenames or relative URLs.
• Test the result in current browsers and in the target CMS or editor. JavaScript, forms, frames, ActiveX controls, browser-specific markup, and unavailable external URLs may not work.
• Use UTF-8 when an encoding option is available, then verify accented and non-Latin characters.
• Keep the original MHT file as the archival copy because conversion can discard MIME packaging, metadata, and the exact relationship between archived resources.