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Convert MHTML to OST in Java

Native MHTML to OST conversion using Java Email library, without needing any additional software.

How to Convert MHTML to OST Using Java

In order to render MHTML to OST, we’ll use

Aspose.Email for Java

API which is a feature-rich, powerful and easy to use conversion API for Java platform. You can download its latest version directly from


and install it within your Maven-based project by adding the following configurations to the pom.xml.


<name>Aspose Java API</name>


<version>version of aspose-email API</version>

Steps to Convert MHTML to OST via Java

Java programmers can easily convert MHTML file to OST in just a few lines of code.

  • Load MHTML file with Aspose.Email for Java MailMessage.load.
  • Call the save() method.
  • Pass the output file path with (OST) file extension.
  • Open OST file in compatible program.

System Requirements

Before running the Java conversion code, make sure that you have the following prerequisites.

  • Microsoft Windows or a compatible OS with Java Runtime Environment for JSP/JSF Application and Desktop Applications.
  • Get latest version of Aspose.Email for Java directly from Maven .

Convert MHTML to OST - Java

// load the MHTML file to be converted
MailMessage message = MailMessage.load("sourceFile.mhtml"); 
// save MHTML as a OST"Saved File.ost", SaveOptions.DefaultOst);    
  • MHTML to OST Conversion Live Demos

    Other Supported Conversions

    You can also convert MHTML into many other file formats including few listed below.

    MHTML TO EML (Outlook Email Messages)
    MHTML TO EMLX (Apple EMLX Format)
    MHTML TO HTML (Hyper Text Markup Language)
    MHTML TO ICS (iCalendar)
    MHTML TO MBOX (Electronic Mail Messages)
    MHTML TO MSG (Outlook & Exchange Format)
    MHTML TO OFT (Outlook Email Templates)
    MHTML TO PST (Outlook Personal Storage Files)
    MHTML TO VCF (Virtual Card Format)