Free OST PST Viewer - open PST files without Microsoft Outlook

View PST and OST files in a few clicks without Microsoft Outlook. Open PST and OST orphaned Outlook data files. Search and export Contacts, Calendar, and email folders content to PST and other file formats.

  • <b>Open Outlook .pst and .ost files</b> - View, search and print out .PST and .OST files for Free.
  • <b>Convert Outlook .pst and ost files</b> - Export data files content to .PST and other files formats.
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Open and view PST and OST files without Microsoft Outlook

If you are looking for the quickest and simplest way and tool to find and extract information stored in connected or orphaned Outlook data files – OST PST Viewer is the best solution for you. Our tool is a Free* Windows software that does not require Microsoft Outlook to be installed. Can’t open OST files or PST files? With OST PST Viewer you can open, view, search, print and export* .pst or .ost file content to MSG, VCF (vCard), ICL (iCal) or PST file. No more errors and inaccessible files... more

OST files are used in Microsoft Exchange Server to store data on a local computer, hence you can’t connect it directly to Outlook. With OST PST viewer, you can open OST files in a few clicks.

The software is designed with familiar Microsoft Outlook look-alike user interface. So, you can manage and interact with PST files content the way you usually do, e.g. view or reply to a message, view monthly calendar events, search and copy a selected contact phone number.

With OST PST Viewer PRO Edition* you can manage Outlook data file content beyond just viewing it, e.g. export PST files convert OST to PST file to various file formats, export one or all attachments from the selected folder, change or update the follow- up flags and read/unread status, advanced search and more.

All above make OST PST Viewer Pro an indispensable tool for professionals, who manage Microsoft Outlook and Exchange mailbox backups , PST archives, for export and mailbox data migration and OST file conversion , as well as for regular users of Microsoft Outlook desktop software who need access to Outlook data and backup without opening it, or if Outlook fails to start or lost connection to an Exchange server.

Main features of OST PST Viewer:

*Some product features are still under development or you can request them as part of a customization quote.

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Customer Testimonials
4.8 - 295 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