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OST to PST Converter

Convert all Outlook items from OST to PST quickly and easily.

  • Convert healthy, corrupted, orphaned, archive, and encrypted OST files
  • Convert emails, attachments, contacts, calendar events, and tasks
  • Compatible with all versions of Outlook
Get started for free

What’s New in OST to PST Converter

v 1.28

Converting OST to PST for all users

How to convert OST to PST files?

This tool converts OST files to PST file format. The tool can extract emails from .ost files without requiring Microsoft Outlook or a server account connection. To convert OST to PST, follow these steps:

  1. Choose a File or Folder with .ost files
  2. Select the destination path for the resulting PST files
  3. Optionally, customize additional settings:
    • Process subfolders
    • Create individual folders for each Outlook Data File
    • Replicate folder structure from source Outlook Data File
    • Skip empty folders
    • Create separate PST file for each folder
  4. Click "Run" to convert OST to PST files
Download Installer Upgrade

OST to PST Portable Version (.zip) - No installation required

Usage: ost2pst64-cli [command] [options]

Command: convert pst
Description: Convert OST files to PST format

Options:
  -f, --file        Required. Path to the file(s) to be converted, supporting wildcard characters (*?).
  -r, --recursive   Process subfolders recursively.
  -q, --query       Search query for filtering messages.
  -p, --path        Destination path for PST files.
  -v, --verbose     Display detailed processing information on your screen.
  --fullscan        Perform an extensive scan for damaged or corrupted Outlook files.
  --harddel         Find and export 'hard deleted' and 'orphaned' items.
  --harddel-only    Export only 'hard deleted' and 'orphaned' items.
  --atchm-only      Export only attached emails.
  --mkdir           Create an individual directory for each exported file.
  --srcfolders      Preserve the source folder structure.
  --empty           Include empty folders in the export.
  --storename       Specify the display name of the new Outlook data file.
  --folder          (Default: Inbox) Destination Outlook folder for exported folders and items.
  --split           Create dedicated PST files for each folder.
  --mode            (Default: rename) Overwrite mode. Valid values: rename, append

Command line options

OST to PST Converter offers command line options for converting items from .ost to .pst files. To start the conversion, use the convert pst command followed by various options.

One of the key features is the ability to apply a search query to filter messages based on specific criteria, utilizing search keywords and boolean search operators. This allows users to extract only the relevant items they need, saving time and effort.

  • Search query to filter messages based on specific criteria
  • Recover hard deleted and orphaned items
  • Outlook installation is required for exporting to .pst files

Technical Specifications

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About Product

OST to PST Converter
Version: 1.28
License: Free, Personal, and Commercial use
Interface Languages: English, Dutch, French, German, Italian, Portuguese (Brazil), Spanish
Release Date: May, 2024
Download: Portable version and Installer
System Requirements

System Requirements

Processor: Intel-compatible (x86, x64)
Memory: 1 GB minimum (4 GB recommended)
Hard Disk: 50 MB for installation files
Operating System: Microsoft® Windows 11 / 10 / 8.1 / 8 / 7
Prerequisites: Microsoft .NET Framework 4.7.2 or later
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