Free Online Email Converter for Email Files & Archives

Convert email & message archives to EML, MSG, HTML, PST, MBOX, JPEG, PNG, SVG, BMP, TIFF and MHT files.

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Conversion Viewer Headers Metadata Parser Search Merger Signature Watermark Assembly Redaction Annotation Editor Comparison
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MBOX Email Mailbox File

MBox file format is a generic term that represents a container for collection of electronic mail messages. The messages are stored inside the container along with their attachments. Messages from an entire folder are saved in a single database file and new messages are appended to the end of the file. Numerous applications and API provide support for MBox file format such as Apple Mail and Mozilla Thunderbird.

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OST Outlook 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.

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HowTo

How to convert MBOX to OST

  • Click inside the file drop area to upload MBOX files or drag & drop MBOX files.
  • You can upload maximum 10 files for the operation.
  • Your MBOX files will be uploaded and will be converted to OST format.
  • Download link of OST files will be available instantly after conversion.
  • You can also send a link to the MBOX 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.

Other Supported Conversions

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