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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EML E-Mail Message File

EML file format represents email messages saved using Outlook and other relevant applications. Almost all emailing clients support this file format for its compliance with RFC-822 Internet Message Format Standard. Microsoft Outlook is default software for opening EML message types. EML files can be used for saving to disc as well as sending out to recipients using communication protocols.

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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 EML to OST

  • Click inside the file drop area to upload EML files or drag & drop EML files.
  • You can upload maximum 10 files for the operation.
  • Your EML 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 EML 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 EML into many other file formats. Please see the complete list below.