Free OST PST Viewer to Viewer and Reader OST files

Use OST PST Viewer to access, view and read old Outlook OST files.

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OST PST Viewer Customers Reviews

Average Rating: 4.8 - 271 reviews
I used OST PST Viewer to access a large old OST file. I was able to find the information I needed from some old emails, quickly using the search function. Using OST-PST viewer was that easy.

View OST files and other OST PST Viewer features

OST files Viewer

OST files Viewer

View .OST files content with or without Outlook with free OST PST Viewer software. Extract, export and print out content of .ost files to .pst, pdf*, .msg, .vcf, vcard, .ical file formats.

Access OST file without Microsoft Outlook

Access .OST file without Microsoft Outlook

Open multiple offline OST files without Microsoft Outlook. Access all your inaccessible emails, contacts with OST PST Viewer tool.

Read OST files

Read .OST files

Open and read content of orphaned or connected OST data files without connecting them to Outlook. Search through content of .ost files to find important messages, contacts, calendar event or tasks.

How to view OST files without Outlook

Just follow these simple steps:

  1. Download, install and launch OST PST Viewer on your PC;
  2. To add a file to OST PST Viewer, go to the "File" tab and click "Open";
  3. Choose OST or PST file you would like to open;
  4. You can now easily explore your OST or PST file content without Outlook.
How to view OST files without Outlook
4Team Corporation

About 4Team Corporation

The company behind OST PST Viewer

We are a Microsoft Gold Certified Partner and independent software developer and vendor. Since 1999 we have provided business solutions to our corporate customers and individual end-users worldwide. We are very proud to be highly recommended by our satisfied customers and offer award-winning support.

Our satisfied customers

Customers all over the world are successfully using 4Team Corporation services for personal and business needs

US Army
University of Virginia
State Bank of India
New Mexico State University
Defense College
Lion Global Investors
Warner Bros. Interactive Entertainment