Free online MHTML to HTML converter

Some document systems, web editors, and hosting tools accept a standalone .html page but not an MHTML archive. Converting the archive separates the page source from its captured resources for editing, publishing, inspection, or storage.

What MHTML is

MHTML (MIME HTML), usually saved as .mht or .mhtml, is a MIME multipart archive that stores an HTML document and related resources—such as images, CSS, fonts, and scripts—in one file. Browsers, email programs, exported help systems, legacy Windows applications, and web-page archiving tools use it.

An MHTML file is not ordinary HTML with a different extension. It contains MIME headers, multipart boundaries, an HTML part, and encoded resource parts. The HTML may refer to those resources through MIME content locations or cid: identifiers. MHTML preserves a captured response, not necessarily the original live application, its server-side behavior, authentication session, or external data.

What HTML is

HTML is the markup format used to describe web pages. A standalone .html file can be opened in a browser, edited in a code editor, hosted on a web server, or imported into systems that do not support MIME archives.

HTML normally references images, stylesheets, fonts, and scripts as separate files. A conversion can instead embed some resources as data URLs, but an HTML file plus an asset directory is usually easier to edit, inspect, publish, and maintain.

Convert the file on 101convert.com

1. Open the MHTML-to-HTML converter on 101convert.com.
2. Select the .mht or .mhtml file from your device.
3. Choose HTML as the output format and start the conversion.
4. Download the resulting .html file.
5. Open it in a browser and inspect the layout, text encoding, images, styles, hyperlinks, and scripts.

This option requires no software installation and is suitable for occasional conversions. MHTML files can contain confidential page contents, account information, or embedded documents, so use an online service only when its current privacy and file-retention terms are acceptable.

Extract the archive locally

For confidential files or repeatable processing, use a MIME-aware desktop utility or script instead of merely renaming the extension. On Linux or macOS, a utility such as munpack can extract the MIME parts:

munpack page.mhtml

Keep the extracted HTML part and resource files in the same directory. Open the HTML source and replace archive-specific references—especially cid: URLs and MIME content-location paths—with relative paths such as images/logo.png. The exact command and package name vary by operating system.

For automation, parse the file as a MIME message, not as a ZIP archive. A script should locate the text/html part, decode it using its declared charset, write each image or stylesheet with the correct MIME type and filename, and update the HTML references. Preserve the original MHTML file because extraction can lose relationships that are difficult to reconstruct.

Use a browser only for simple pages

Browsers such as compatible versions of Microsoft Edge can open many MHTML files. You can select the rendered page with Ctrl+A, copy it, paste it into an HTML editor, and save it as page.html. This creates a new page from the displayed content rather than unpacking the archive.

The browser copy method can omit the original CSS, scripts, forms, metadata, images, links, and character encoding. A browser's Save page as options also vary by version and may produce another archive or a browser-specific result, so use MIME extraction or the 101convert.com converter when preservation matters.

Compatibility limitations

Changing .mhtml to .html does not convert the file; the MIME headers and multipart boundaries remain and many editors will reject it.

After conversion, pages that depend on JavaScript, server requests, browser extensions, authentication, unavailable external resources, or unusual fonts may not behave like the original. Check the result with network access disabled to identify missing local assets, then verify the character encoding, image dimensions, CSS layout, hyperlinks, forms, and scripts before publishing or archiving it.