Freeware OST Splitter Software

FreeSoftvare OST file splitter will assist you out in the situation, if your OST file has reached maximum size or the OST file is large than mailbox size. The splitting procedure can be started with any attribute such as size, folder, date, category, email ID, year, and so on.

Once the size of MS Outlook offline data file increases, it develops problematic to tackle such file. A huge OST file can also be a cause for corruption. Thus, it is extremely suggested to occasionally truncate the large Exchange server OST file in several parts. Here, we are providing an OST file splitter, which cuts down large size .ost into smaller and manageable files.

Beneficial Features

  • Split Large OST Files into Various Parts by Date, Folder, Size, & Year
  • Divide the Outlook OST Items such as Emails, Contacts, Task, etc.
  • Ability to Repair Corrupted or Damaged OST File before Breaking
  • Split Huge Outlook OST Files into UNICODE PST With No Limitation
  • Option to Break Newly Generated and Archived OST Data File Easily
  • There is No Need to Install Microsoft Outlook to Perform the Division
  • Supports all MS Outlook 2019, 2016, 2013 & All below versions

Why Should You Choose Freeware OST Splitter Software?

Outlook has now become one of the well-known email applications, which is used in various organizations for cross-interaction. It creates OST files when synchronized with Exchange Server. However, sometimes users wish to split outlook OST file due to oversized OST file may result in the corruption of files and can slows down the working of Outlook. At times, it becomes tough to handle large Microsoft Outlook OST file. Therefore, splitting them make this task easy for users. They can try FreeSoftvare Outlook OST splitter Tool to get rid from large OST files.

Incredible Features of OST Splitter Software



Outlook OST File Splitter has been designed to help those users who want to divide their OST file that are big or huge in size. As large size of OST may lead to the corruption therefore, this software is very helpful in truncating the OST file in an effortless manner. Moreover, once the files are divided they can be accessed easily in Outlook.

free download


The utility brings forth an option to split the OST files by folder. With the help of this option, users can divide various OST files according to folder. This can be done in Microsoft Outlook editions 2010 and 2013. The tool breaks the specific folder according to the size desired by users. Moreover, it allows to split archive OST as well.

OST splitter tool


Another option for truncating an oversize OST file is by size option. According to this, users can break the OST in equal size. That means, the tool OST File Splitter lessens the Outlook OST file into various parts as the per the mentioned file size. However, the software cannot divide the files that are already corrupted.

Splitter OST file


Divide the Outlook OST data file based on year is another interesting and useful feature. This is added to the panel of the tool considering the need of users who wish to split their OST file by year. The OST Splitter Software has the potential to create a separate file for each year. For example, if a user chooses year from 2015 to 2017, then three OST files will be created.

split OST file


Apart from all the options, breaking OST by data is also an important feature. For this, users need to choose the option of “Split OST by Date.” Once it is done, the tool brings up an option to choose the date and then breaks the data. The first file, which is created includes the items “of and prior” and the second file contains the data of “after” date.

OST splitter Software


The software has a very simple designing and therefore, even a novice can access this. As soon the OST gets divided, the tool permits users to save the resultant file in any of the desired location. They can store it in any of the existing folder or in a new folder too. In addition, the integrity of OST files remains intact throughout the procedure.

Freeware OST File Splitter Tool Specifications

Download Free OST file split Software

Software Download

Size : 18.0 MB

Version : 4.0

Trial Limitations

Demo of OST File Splitter only split first only 50 Items of OST file.

System Specifications

Hard Disk Space
100 MB of free hard disk space required

4 GB of RAM is recommended

Minimum 2.4 GHz Processor


  • Microsoft .NET framework 4.5 or above should be installed.
  • If you are using Windows 11 (64-bit), Windows 11/10/8.1/8/7, then please launch the tool as "Run as Administrator".

Supported Editions

  • Microsoft Windows – Windows 11 (64-bit), Windows 10 32bit/64 bit, Windows 8 32bit/64 bit, Windows 7 32bit/64 bit, Windows Server 2012, Windows Server 2008 and All Below Versions
  • Microsoft Outlook – Outlook 2000, 2003, 2007, 2010(32/64 bit), 2013 (32/64 bit), 2016 (32/64-bit), 2019 (32/64-bit)

Product Guide

Electronic Delivery

The product delivery is automated. You will receive an email with the link to download the product and the activation key within a few minutes after the payment has been confirmed.

Frequently Asked Questions

Follow the below steps to split MS Outlook OST file:

  • Step 1: Download & install the OST Splitter tool
  • Step 2: hit on Split Option and Add OST File
  • Step 3: Now, select any of the Split Option
  • Step 4: Hit on Next to start the splitting procedure

No, there is not any limitation, you can split older OST file on the basis of date as well as year.

Yes, Our OST file splitter tool does not have any file size limitation. So, users can divide numerous OST as you wish irrespective of its file size.

Yes, Our OST file split software permits users to split oversized OST files on a yearly basis without any hassle..

No, while reducing OST files there is no need to install MS Outlook on your local machine.

Yes, OST File Splitter tool assists the user to fight against all damaged Outlook OST files before splitting.

What Our Customer Say

“How to split large OST file, was the biggest question in mind when I need to prepare a presentation using some OST files. I wanted to know the solution on urgent basis and then, I learned about OST Splitter Software by my colleague. I instantly launched the tool in my machine and performed the splitting of OST. I was amazed to see the options to split outlook OST file via this software. My first experience was very good with this utility and I am ready to use it in future as well.”

Chris Kimona

-David Jones, England

“The tool is really very amazing and makes it very simple to break large OST files. If I talk about the best thing of the Split Outlook OST file tool, then it will be its interface as well the ability to keep all the files safe. The designing has been done in such a manner that even a novice can access it without any technical assistance. I want to say a big thank you to the entire team of developers.”

Willium Andrew

-Katy Samuel, France

image image