Free OST PST Viewer software to search in OST and PST files

Open, read and extract email, contacts from your orphaned Outlook data files

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OST PST Viewer Customers Reviews

Average Rating: 4.8 - 272 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

Find messages inside OST and PST files

Find messages inside OST and PST files

Quick Search helps you to quickly find the messages, contacts or other items in Outlook OST or PST files. Use Pro version with advanced search, and filter the items by date, by sender, by keyword.

Open OST file in or without Outlook

Open and read archive .ots and .pst files without Microsoft Outlook

Open and view content of large archive OST and PST files just in a few clicks without Microsoft Outlook. Can't open orphaned .ost files? It's easy with OST PST Viewer. Read email messages, take a look at your contacts list without Microsoft Outlook.

Extract data from OST and PST files

Extract data from .OST and .PST files

Open Outlook .pst and .ost files and extract the contents to another file format. Automate extraction of Outlook data files with OST PST Viewer. Extract email messages and contacts from mailbox to .msg and .pst files.

How to search content of OST and PST files:

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 search content of OST and PST files
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