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ONE to MHTML converter

Convert ONE to MHTML online from any device with a free converter.

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We have already processed 5,837,462 files with total size of 9,546,322 Mbytes

About Conversion app

Convert ONE to MHTML files online with our free converter app. No matter your platform — Windows 10, Mac, Android or iPhone — you can convert ONE files rapidly.

This app supports document, audio, archive, image and video conversions. We support a wide range of popular file formats, including PDF, Word, Excel, and PowerPoint, as well as specialized formats like DWG, STL, MD, and more. Batch conversion is available for archive files

To change ONE to MHTML just upload your file, pick the output format and hit the Convert button. After the conversion is finished, download your MHTML file instantly. No email needed.

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ONE

Microsoft OneNote File Format

The ONE file format, also known as OneNote Document, it was developed by Microsoft for storing digital notes, including text, images, audio, and other multimedia content, primarily used in Microsoft OneNote. It is supported by Microsoft OneNote across platforms, including Windows, macOS, iOS, and Android, and can be accessed via web-based OneNote or third-party tools with limited compatibility. The format organizes notes into hierarchical sections and pages, supports advanced features like embedded files, handwriting recognition, and cloud synchronization, making it ideal for collaborative and multi-device workflows.

MHTML

MIME Encapsulation of Aggregate HTML

MHTML (MIME HTML) is a web page archive format that combines HTML, images, scripts, and other resources into a single file for easy storage and sharing. It is supported by web browsers like Microsoft Edge and Internet Explorer, as well as tools such as email clients and web development software. The format uses MIME encoding to embed external resources directly into the file, enabling self-contained web pages with advanced features like CSS, JavaScript, and multimedia elements.

Add the conversion API to your app

  • Convert over 200 file formats — including PDF, Word, Excel, HTML, images, and many more
  • Load files from disk, URLs, FTP servers, or cloud storage (such as Amazon S3 or Azure)
  • Customize output settings — rotate and reorder pages, add comments, or apply watermarks
How it works

How to convert ONE to MHTML

Step 1
Click inside the file drop area to upload ONE file or drag & drop ONE file.
Step 2
Click on Convert button. Your ONE files will be uploaded and converted to MHTML result format.
Step 3
Download link of result files will be available instantly after conversion.
Step 4
You can also send a link to the MHTML file to your email address.
FAQ

Questions & Answers

Other Supported Conversions

You can also convert ONE into many other file formats. Please see the complete list below.

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