Simple To Use
Since 2006, Ost/PstViewer Pro™ by Encryptomatic® LLC is the premier Windows tool for reading your Outlook emails in .ost files, without Outlook. It works with any .ost or .pst file, from Outlook 98 to Outlook 2019/365. Use it to organize, discover, print, and convert emails even if they were created by different mail clients.
In addition to Outlook .ost files, Ost/PstViewer Pro gives you access to many other email formats supported by dozens of email clients, including Thunderbird.
Supported e-mail formats include OST, PST, MSG, EML, MHTML, Winmail.dat, and MBOX. Ost/PstViewer Pro can combine different email files into a single searchable email list. Don't fuss with multiple viewers or email clients when Ost/PstViewer Pro can open all your emails.
More than a decade of active software development has been invested in Ost/PstViewer Pro. During that time, hundreds of malformatted email exceptions have been discovered in the wild and incorporated directly into Ost/PstViewer Pro. That's why it is the most accurate email viewer on the market.
Ost/PstViewer Pro has been built with a focus on rendering complex emails that include rich text with embedded graphics, and those that SmartArt with embedded charts, shapes and drawings.