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Main OST PST Viewer Features

OST PST Viewer is a free tool created to help you open PST and OST files without connecting it to Outlook. Our OST and PST files viewer can open Outlook files without Microsoft Outlook installed. View Outlook emails, contacts and calendars in a few clicks. OST PST Viewer PRO is not just a viewing tool, it has more advanced features, such as emails conversion to MSG. OST PST Viewer also lets you import files in OST and export it or save selected data in a PST file format.

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Learn more about main OST PST Viewer and the Pro Edition:

  1. Free PST Viewer - Outlook PST file viewer
  2. Free PST Reader - reading orphaned Outlook PST files
  3. Free Outlook Viewer to open PST and OST files
  4. Open PST file without Microsoft Outlook - PST files management software
  5. OST files reader, viewer and management software
Product Info
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Sync Microsoft Outlook


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Phone in US: +1 (954) 796-8161
Customer Testimonials
4.8 - 234 reviews
Outlook is unstable when your files get big. I've wasted days of time and lost lots of data trying to manage the files and archives. OST PST Viewer and PSTSplitter solved all of my problems. "
C Shepard See more
4Team Corporation
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Coral Springs
FL 33076, USA
USA: +1 (954) 796-8161
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