Split Outlook Large OST File by using OST Splitter Seamlessly


  • Break large ost file according to Date, Size, Year, Folder, Email ID, Category
  • Tool allows to split OST items like emails, contacts etc.
  • Tool Repair & Recover Corrupt OST file before splitting file
  • Crop OST files without any restriction on file size into Unicode PST
  • Option to Add OST File / Folder and Search OST Files
  • To split OST file size, Outlook installation is not necessary
  • Split OST created by Exchange Server, Hotmail, Office 365 or any IMAP
  • Supports Outlook 2019, 2016, 2013, 2010, 2007, 2003 Version

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Full Version

Remarkable Features of Intrigua Split OST Software

Truncate OST File

Crop OST File of Wide Size

Trim Large oversized Outlook .ost file into multiple smaller parts. OST splitter also allows to truncate UNICODE and ANSI OST file without leak of any information from it and by maintaining its meta properties like cc, bcc, to, etc even after process completion.

reduce ost file size

Option to Truncate OST file by Size

Use this option to minimize OST file size which is large enough to manage. It allows users to split Outlook ost file from size 5MB to 45GB. Provide the size in MB or GB units and the selected OST file will be separated each into particular size.

trim ost by date

Option to Separate OST files by date

This tool allows users to truncate OST file by specified date. Users need to select date from calendar from where they want to split an Ost file. It will crop the Ost file into two parts, data before the specified date and data after the specified date.


Option to split OST file by Year

This option allows users to crop Outlook OST file size by specified year. To trim Ost file using this option, you need to provide the year range. The software will create new trimmed files having data of each year.

crop ost folder

Split Outlook OST file by Folder

This option allows the user to split an Ost file according to specified folder where each will be converted into new PST file. This reduction takes place without being effected to Outlook OST file data. The folder can be divided into a specified size by users.

save folder

Split any Type of OST File

OST File Splitter tool allows to crop the OST file created by Exchange Server, Hotmail & Office 365. It can also trim any IMAP OST file.

Technical Outline of OST File Splitter

What is OST file?

OST is called Offline Folder File which is created in Microsoft Outlook. This Offline folder allows the user to work even they are offline and the changes get synchronized with the Exchange server whenever they connect again. The OST file is useful because it permits user to work in the situation of server downtime.

Size of OST file:

In MS Outlook 2019, 2016, 2013 & Outlook 2010, the size limit of OST file is 50GB and the files are in Unicode format by default. If the file size get exceeded by its limit, it can be needed to crop it into multiple files for easily managing.

OST file Location:

C:\Documents and Settings\user\Local Settings\Application Data\Microsoft\Outlook

Need of Tool to Split Outlook OST file:

  • Oversized Outlook OST file is difficult to manage, so by trimming the OST folder into multiple parts, users can easily manage the data.
  • Large size OST file is much prone to corruption, so it is recommended to minimize OST file size.
  • Any OST file created by IMAP, Exchange Server, Hotmail or Office 365 can be break into multiple small file by using OST Splitter.

OST Splitter Tool Screenshots

splitting software
Step 1: Install and Run the Tool.
Select split option
Step 2: Select Split OST File Options.
Save trimmed file
Step 3: Process to Split OST file.
Split Report
Step 4: Report

Split OST Software Video

Watch the working of OST file Splitter tool to get preview of all items.

FAQ′s - Split OST Tool

Can I split an OST file using OST splitter without installation of MS outlook in my system?

Yes, to separate OST files using this tool, you do not need to install Outlook in your system.

Is this tool split Outlook Ost file if the file is corrupted?

Yes, the OST file splitter before trimming the file, it will repair the corrupted OST file.

What are the maximum size of OST file which can be splitted by OST file splitter tool?

There is no size limitation on OST file for splitting it by using this utility. User can trim Ost file by date, size, year, folder of large OST file.

System Requirements

Demo vs Full Version

Split OST Software Features DEMO FULL
Reduce OST File by Size only 50 items All items
Crop OST File by Date only 50 items All items
Split OST File by Yearly only 50 items All items
Split Outlook OST by Folder only 50 items All items
Split Outlook OST by Email ID only 50 items All items
Split Outlook OST by Category only 50 items All items
Cost FREE $49
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Client Reviews on OST Splitter

I had a large size OST file which makes me trouble to manage it wisely. Also we know large size file is more prone to be corrupted. Then i came to know about Ost file splitter which solves by problem and helps to split Outlook Ost file by size, date, year or folder wise. Thanks to Intrigua OST split tool.

Harvo ,Singapore

Intrigua Split OST tool is perfect solution to manage oversized OST file. You can trim OST file of MS Outlook into multiple files accordingly you want. Save your file anywhere in your system. I would like to recommend this OST splitter tool to manage your large size OST file.

Branven, London