Free Online OST to MHT Converter

Convert OST to MHT online from any device, with a modern browser like Chrome, Firefox.

Aspose.Email Conversion

  • Supported Documents: OST
  • Save as: EML, MSG, PST, OST, MBOX, HTML, MHT, JPG, PNG, SVG, BMP, TIFF

OSTOutlook Offline Storage File

OST or Offline Storage Files represent user's mailbox data in offline mode on local machine upon registration with Exchange Server using Microsoft Outlook. It is automatically created on the first use of Microsoft Outlook upon connectivity with server. Once the file is created, the data is synchronized with the email server so that it is available offline as well in case of disconnectivity from email server.

Read More

MHTMIME Encapsulation of Aggregate HTML

Files with MHT extension represent a web page archive format that can be created by a number of different applications. The format is known as archive format because it saves the web HTML code and associated resources in a single file. These resources include anything linked to the webpage such as images, applets, animations, audio files and so on.

Read More

How to convert a file using Aspose.Email Conversion App

  • Click inside the file drop area to upload a OST file or drag & drop a OST file.
  • Your OST file will be uploaded and will be converted to MHT format.
  • Download link of MHT file will be available instantly after conversion.
  • You can also send a link to the MHT file to your email address.
  • Note that file will be deleted from our servers after 24 hours and download links will stop working after this time period.

Fast and Easy Conversion

Upload your document, choose the save format type and click on “Convert” button. You will get the download link as soon as the file is converted.

Convert from Anywhere

It works from all platforms including Windows, Mac, Android and iOS. All files are processed on our servers. No plugin or software installation required for you.

Conversion Quality

Powered by Aspose.Email. All files are processed using Aspose APIs, which are being used by many Fortune 100 companies across 114 countries.

Other Supported Conversions

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