All in One Outlook Email Toolkit to Manage Outlook Data Files (OST/PST)

Stellar Outlook Toolkit

Stellar Outlook Toolkit is super-easy to manage and optimize the regular functions of your Microsoft outlook profile, such as repairing the damage or corruption, merge Outlook PST files, splitting or compacting a large PST file, and more.

  • Repair Corrupt or Damaged Outlook PST

  • Conversion of OST file to PST file
  • Merges PST files easily
  • Split a Large PST File and Save it from being Corrupt
  • Compact a growing Outlook PST File
  • Remove Junks and Duplicate Mails from Your Outlook Profile
  • Recover Lost Password set to Your Outlook data files (.pst)

Awarded by


Key Features

Outlook PST Repair icon

Outlook PST Repair

This module of Stellar Outlook Toolkit is the best help in all those instances when the Outlook PST file is damaged or corrupt and you are no longer able to get access to your account. With this module, you can repair all corrupt PSTs and recover all the mails and the mail items in their original state.


  • Restores Corrupt PSTs data into a new Outlook data file
  • Supports Recovery of selective mail items
  • Flexibility to Save and load scan results saved with DAT file extension
  • Enables preview of the recovered mail items
  • Supports Contacts and Calendar recovery
  • Provides various compact and split options for repaired PST file
  • MS Outlook Support – 2016, 2013, 2010, 2007, 2003
  • Option to save repaired PST file in Office 365 format

Merge PST  icon

Merge PST

The Merge PST module is very useful to combine multiple Outlook PST files into a single file. It facilitates the option to merge or join PST files easily without loss of a single email. By using this module, you can merge or join all Outlook items like Emails, Calendars, Contacts, Notes, Journals and Tasks.


  • 100% assurance for integrity of the original PST files
  • Filters all duplicate emails
  • Compatible with password-protected Outlook PST files
  • Various saving formats like New and existing PST, Office 365, Outlook Profile and Exchange Server
  • Supports Windows 10/ 8.1/ 8/ 7/ Vista / Windows Server 8 / Windows Server 12

Split Large PST icon

Split Large PST

If you have a large PST file, which is on the verge of damage or corrupt due to its size, split it with the Splitting module of this MS Outlook organizer tool, and create small PST and manage Outlook inbox mails efficiently. This module enables splitting the PST file on the basis of Date, Size, Mail Id and mail Folder.


  • Splits large PST files into smaller Outlook importable PSTs
  • MS Outlook Support - Outlook 2016, 2013, 2010, 2007 and 2003
  • Compatible with Windows 10 / 8.1 / 8 / 7

Compact Large PST icon

Compact Large PST

A growing Outlook PST file creates numerous issues; however, compaction is the best option to avoid them. This module of Stellar Outlook Toolkit compacts a both a growing PST file and the OST file, thereby avoiding any unexpected crash of your Outlook profile.


  • Extracts mail attachments in a separate folder
  • Enables scheduling automatic compaction
  • MS Outlook Support – 2016, 2013, 2010, 2007, 2003, 2002 and 2000

Additional Advantages

Remove Duplicate Emails icon

Remove Duplicate Emails

With the duplicate remover module of this MS Outlook Mailbox Manager, it is easy to filter out all the redundant and junk mails from your MS Outlook profile. This brings vital help in decreasing the overall size of your Outlook mail account and avoids any intermittent PST damage.


  • Identifies and removes duplicate and junk mails
  • Enables marking duplicate emails as 'Expired'
  • Facilitates copying or moving the duplicate mails to a different folder
  • Microsoft Outlook Support – 2016, 2013, 2010, 2007, and 2003

Recover Lost Outlook Passwords icon

Recover Lost Outlook Passwords

Forgetting the password applied to the Outlook account is no more a worry. The Outlook password recovery module of the software provides a set of six passwords that you can use to unlock the Outlook account.

  • Recovers lost or forgotten Outlook PST passwords
  • Provides a set of six different passwords
  • MS Outlook Supports – 2016, 2013, 2010, 2007 and 2003
  • Compatible with Windows 10, 8.1, 8, 7, Vista

Try Stellar Outlook Toolkit to manage complete MS Outlook accounts

*The Free Demo version of Stellar Outlook Toolkit only works with limited functionalities

Software Specifications

Stellar Outlook Toolkit

System Requirement

ProcessorPentium Class

Operating SystemWindows 10, 8.1, 8, 7, Vista & XP

Memory1 GB Minimum

Hard Disk100 MB of Free Space

Software Delivery


License & Version

Technician LicenseCan use the software on multiple systems at single location



Yes. You can recover lost or forgotten passwords of Outlook PST files using the ‘Recover PST Password’ option of the software.

Duplicate mails in the mailbox, specially the mails with attachment occupy unnecessary space and adds to the size of PST file. An oversized PST file is prone to various issues including corruption, making the mail items inaccessible.

The ‘Duplicate Mail Remover’ option of the software removes duplicate mail items on the basis of several comparison criteria an prevents the PST file from getting oversized.

No. The demo version of the software has some limited functionalities. Using the demo version, you can select, repair, and have a preview of the repaired PST items. The demo version of the software is very useful in evaluating the performance of a software. However, in order to save the repaired file, you need to purchase the licensed version. The full version of the software allows you to save the repaired messages in MSG, EML, RTF, PDF, HTML, DBX, and MBOX formats.

The ‘Split PST’ option of the Stellar Outlook Toolkit allows you to split a heavy file into multiple smaller and manageable PST’s. You can either use ‘Split by Time’ or ‘Split by Size’ option to split a file.

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