Open OST files using free OST PST Viewer

OST PST Viewer Customer Reviews

Average Rating: 4.8/5 - 295 reviews

“ "Outlook is unstable when your files get too big. I've wasted days of time and lost lots of data trying to manage the files and archives. OST PST Viewer and PST Splitter solved all of my problems." ”

shepard c.

About OST PST Viewer

OST PST Viewer is a free* software designed to view PST and OST files in a few clicks without Microsoft Outlook. Open PST and orphaned OST Outlook files. Search and export contacts, calendar, and email folder content to PST and other file formats.

*OST PST Viewer free version has limited features. Advanced search, exporting files, copying text, saving attachments, and printing features are available only with Pro version of OST PST Viewer.

Open and read Outlook OST files with OST PST Viewer and more

Advanced OST and PST file viewer and management tool helps to access Outlook data and backup without opening it or if Outlook fails to start or lost connection to the Exchange server.

Open OST and PST files quickly without Microsoft Outlook

OST PST Viewer is an application that allows you to view PST files without Outlook by using an Outlook-type interface. Open Outlook OST and PST content such as emails, contacts, calendars, tasks, journals and notes. Access Outlook data when Outlook is not installed, is unresponsive or fails to open at all.

Open Outlook OST files

Conveniently open and read content of multiple Outlook files with a few clicks. View and copy PST or OST data needed from Emails, Calendars, Contacts, Tasks, and Notes folders. With OST PST Viewer, you can even read information from email attachments. View content as seen in Outlook with embedded graphics, rich text, HTML, and text formatting support.

Convert OST to PST

Ensure that your data is safe at any time. Use OST PST Viewer to access and open OST PST files when your Exchange server is unavailable. Copy offline data and convert OST files to PST. Make changes as needed and reconnect your PST file to Outlook once finished.

Easy to copy or print

Cut, copy and print content from within your OST or PST files. Access text in emails, events, tasks, notes and more at any time. Select any item, field, or text from an Outlook file, and paste wherever needed.

Open all OST and PST types

OST PST Viewer is a tool designed to view or read Microsoft Outlook OST and PST mailbox files. Open standard OST and PST files, or orphaned OST files. Scan and find data within files whether it is ANSI or Unicode.

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See how to open OST files using OST PST Viewer

Just follow these simple steps:

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

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.