Free Online MSG to OST Converter

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

Aspose.Email Conversion

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

MSGMicrosoft Outlook Email Format

MSG is a file format used by Microsoft Outlook and Exchange to store email messages, contact, appointment, or other tasks. Such messages may contain one or more email fields, with the sender, recipient, subject, date, and message body, or contact information, appointment particulars, and one or more task specifications. The properties that constitute the Message object, including are also a part of the MSG file.

Read More

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

How to convert a file using Aspose.Email Conversion App

  • Click inside the file drop area to upload a MSG file or drag & drop a MSG file.
  • Your MSG file will be uploaded and will be converted to OST format.
  • Download link of OST file will be available instantly after conversion.
  • You can also send a link to the OST 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 MSG into many other file formats. Please see the complete list below.