Convert OST to HTML with Attachments

The OST format is good when archiving your Outlook emails. You can even use OST to work with your email files while offline. And that's about where the utility of the OST format stops. What happens when it becomes necessary to have that data in a more shareable format? If you find yourself searching for an app that will let you convert OST to HTML (and more)... then look no further. The Total Outlook Converter Pro is the only, all-in-one conversion utility you'll ever need.

Our OST to HTML converter is able to work with large batches of emails at a time, and gives you complete control over email attachments. Dealing with damaged or corrupted OST files? No problem, the Outlook Converter Pro lets you restore OST to a new HTML file to rescue otherwise lost data! We've even built-in functionality that lets advanced users work directly in the command line. Other options include:

• Convert selected email fields only (or all).
• Handles attachments independent of the main message.
• Converts OST to DOC, PDF, TXT, and XHTML.
• Rename output files.

Built around a user-friendly interface, our conversion utilities are second to none. Try our award-winning converter today through our free trial version. Purchase the converter and receive a lifetime license. Never again will it be an issue to save OST to HTML. Updates are free during the first year, and you'll have access to our great support team.

With more than a dozen different languages supported it doesn't matter whether you're in North America, Europe or Asia... we have an app for you! See how fast and easy it is to use the Total Outlook Converter Pro today. We have been developng file converters since 2003 so you can rely on our apps.

Windows Vista/7/8/10/11

Total Outlook Converter Customer Reviews 2026

"We archive client campaign emails from an offline OST mailbox and needed HTML output with every attachment kept intact for a shared review site. Total Outlook Converter Pro processed the whole batch and every image and PDF attachment stayed linked to its message. Large batches of a few thousand emails finished without any slowdown."

Simone Duval Marketing Operations Manager, Duval Creative Agency

"Converting OST to HTML with attachments was the only reliable way we found to hand over a former manager's mailbox to a browser-based archive tool. The command line option let me script the conversion as part of our offboarding checklist. Attachments stayed exactly where they belonged relative to each message."

Adebayo Fashola Systems Administrator, telecom regional office

"Some of our OST files were slightly damaged after a laptop crash, and this converter still pulled the HTML and attachments out cleanly for most of the batch. Being able to review emails in a browser without opening Outlook made the discovery process much faster. A handful of the most corrupted messages needed a second pass to recover."

Louisa Feldman Paralegal, Feldman Legal Associates