QuickData OST File Splitter

4.8 Based on 50 Reviews

OST File Splitter

OST File Splitter will help you out in the situation, if your OST file has reached maximum size or the OST file is bigger than mailbox size. The splitting process can be initiated with any attribute like size, date, folder, email id, category or year from the given multiple options.

  • Split large size OST file into multiple PST files
  • Separate entire OST data including contacts, emails etc
  • Allow you to split fresh created OST & archived OST as well
  • It is not mandatory to install the Outlook to truncate large OST file
  • Add OST file, folder or search OST files from the drive

Effectual Features of OST File Splitter

break large file

Separate Huge OST File

OST File Splitter allows you to split Outlook Offline data file into different small size .ost files. OST File Splitter will break down the OST file into small size PST files. Along with that the meta part like Cc, Bcc, to etc. remains intact.

divide data

Choice to Divide OST File as Folder

In case of the folder basis, the OST Splitter Software enriches you with the creation of a single file for each required folder present in Outlook .ost file. You can also split the archive OST file.

based on size

Permits to Truncate OST File by Size

The tool facilitates you with the option to set a size limit for your resultant file. Suppose, you have an OST file of 20GB and has set size 1GB then you will get 10 PST files each of 1GB.

based on year

Option to Split OST File by Year

If you are suffering with an OST file containing data of many previous years. And you want to get the data of some particular years as per your requirement. Then you can select this option, you will get different PST files for every year.

split by date

Facilitates with Splitting OST file by date

If your OST file has reached maximum size, the software allows you to truncate that OST file on the basis of date. You just need to set a date on given option and you will get the data till that date in the form of separate PST files.

new folder

Save the resultant OST files at desired location

After breaking down the .ost files, the Outlook OST file Splitter will provide the option to save the output data files to desired location. With the use of this utility, there will not be any affect on the original structure of OST file even after split.

Introduction to OST File

OST File: OST file (.ost) is solely related to MS Outlook. Whenever Outlook is configured with Exchange Server, then the Outlook data file stored locally is in OST file format. OST file facilitates users with the Offline access of Outlook mail accounts, It gets synchronized after getting internet connection. You will find MBOX file (without any extension) at this location on your system.
Why Split OST File: If your OST file keeps growing and not getting smaller then it may cause corruption or lead to multiple errors like as:
-- Cannot load or open the OST file.
-- Not able to add new data to OST file.
-- Not able to synchronize the OST file with Exchange Server.
-- Various errors during the synchronization process.

Download Trial

Demo Limitation:

Free OST File Splitter tool only import first 50 items of the OST file.

System Specifications:

  • Windows OS: Windows 10 and all below versions
  • Processor: Intel® Core™ 2 Duo CPU E4600 @ 2.40GHz 2.39GHz
  • RAM: 4 GB of RAM (4 GB Recommended)
  • Disk Space: Around 100 MB free space for installation


Supported Platforms:

  • Windows OS 10, 8.1, 8, 7, Vista, XP, Server 2012, Server 2008
  • Outlook 2019, 2016, 2013, 2010, 2007, 2003, 2000

Video for OST File Splitter

Queries related to OST Splitter

No, You can split OST file of any size.

Clients' thoughts About Software