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FAST CONVERSION

OST to PST Converter

Convert Offline OST files to Outlook PST format without Outlook installation.

  • Converts orphaned/inaccessible OST files to PST.
  • Exports OST mailboxes to Office 365 directly.
  • Supports encrypted and password-protected OST files.
  • Batch conversion of multiple OST files simultaneously.
Free Download Buy Now
Awards
OST
PST

Why Convert OST to PST?

Access your mailbox data even when Exchange Server is unavailable.

Orphaned OST Files

When your Exchange account is deleted or mailbox is removed, OST files become orphaned and inaccessible.

Server Migration

During Exchange Server migration or upgrade, convert OST to PST to preserve mailbox data.

Office 365 Export

Directly migrate OST mailboxes to Office 365 without intermediate PST conversion.

Convert in 3 Simple Steps

3 Step Process

Technical Specifications

Supported Versions

  • MS Outlook 2021, 2019, 2016, 2013
  • MS Exchange Server 2019, 2016, 2013
  • Office 365

System Requirements

Memory: 4 GB Minimum
OS: Windows 11, 10, 8.1, 8, 7

Frequently Asked Questions

Can I convert OST without Outlook installed?
Yes, the software works independently and doesn't require Outlook installation for conversion.
Does it preserve folder structure?
Yes, the original folder hierarchy, formatting, and metadata are completely preserved during conversion.

Start Converting Today

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