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PCVITA software to split large Outlook PST files into smaller parts
Outlook Split PST File Tool
PCVITA Outlook Split PST File Tool splits a large PST file into smaller parts by size, date, year, folder, email ID or category. Add one PST file or a folder full of them, choose a destination and select a split mode. Folder hierarchy, attachments and email properties stay the same in every new file and Outlook does not need to be installed. Try the free demo to split 50 items, then buy the $49 full edition to split without that limit.
- Input
- Large and corrupt PST files
- Output
- Smaller PST files in your folder
- Modes
- Six ways to split a PST file
- Size
- 1 MB to 1 TB per part
Click Add File(s) for one PST file or Add Folder for many. Use Search Files when the path is unknown. See all features. Need to join PST files instead? Open the PST Merger Tool.
How to Split a PST File Into Smaller Parts
Large PST files slow Outlook down. Add the file, choose a split mode and save the parts to a folder.
Large Outlook PST File
One file or a folder of files
- Big data files that slow Outlook
- Archives that grow every year
- PST files stored on a drive
PCVITA PST Split Tool
Opens on your Windows PC
- Six split modes
- Search Files option for drives
- Split Information before the start
Smaller PST Files You Choose
Saved in your destination folder
- Folder hierarchy kept
- Email properties and attachments kept
- Files open from Destination Path
- 1AddAdd PST files or search a drive.
- 2SplitChoose a mode and enter a value.
- 3SaveOpen the new files from Destination Path.
Split Outlook PST File in 6 Steps
Six screens lead from launch to smaller files. Select a step to see its screen. See every screen in the Software Guide.
Step 1. Open the Split PST Tool
Go to Start, then All Programs and open Split PST. The main screen shows the options for adding PST files.
Step 2. Add PST Files or a Folder
Click Add File(s), select a PST file and click Open. Click Add Folder and then OK to load a folder of PST files. Click Search Files when you do not know the path. Remove and Remove All clear files you added by mistake.
Step 3. Select a Destination Folder
Click Browse and select the destination folder for the new PST files. Click Next to move on.
Step 4. Choose a Split Mode
Choose one of six modes. Size, Date, Year, Folder, Email ID and Category all appear on one screen, so you match the mode to the way you want the PST file divided.
Step 5. Set the Size, Date or Year
For Size, enter a value in MB, GB or TB. For Date, choose Select Date and a date from the calendar or choose Select Date Range(s) to add many ranges. For Year, set the From and To years. Click Next.
Step 6. Review the Summary and Start
The summary lists the Split Information. Click Next to start. A progress screen shows Stop and Home buttons. A notification appears when the split ends, so click OK. The Destination Path link opens the new files.
Free demo splits the first 50 items, no licence needed.
PST File Splitter Features for Every Split Mode
What PCVITA does with a large PST file, grouped by task.
Adds PST Files and Finds Them on Your Drive
Load one file, a folder of files or search a drive.
Add File(s) and Add Folder
Add a single PST file or a folder of PST files and split them in one job.
Search Files on a Drive
Select Search Files when the path is unknown and the tool fetches PST files from the drive you choose.
Remove and Remove All
Clear a wrong file from the list before you click Next.
No Outlook Needed
PCVITA splits PST files with no Microsoft Outlook installation.
Standard or Guest User
Use the tool as a Standard or Guest user with no admin privilege.
Splits a PST File in Six Ways
Match the split mode to the way you store and search mail.
Split by Size
Enter any size from 1 MB to 1 TB in MB, GB or TB and get parts of that size.
Split by Date and Year
Break a PST file inside one date range or divide the file year by year.
Split by Folder
Divide a PST file into parts like inbox.pst, sent.pst and outbox.pst.
Split by Email ID and Category
Separate items by the email ID of a sender or by Email, Notes, Tasks, Calendars, Contacts and Journals.
Sets the Size, Date and Year Values
Enter the numbers that decide where your PST file splits.
Size in MB, GB or TB
Type the part size in the unit you prefer.
Select Date and Date Ranges
Select a date from the calendar or add many date ranges in one job.
Remove a Wrong Range
Use Remove to delete a date range you added by mistake.
From and To Years
Set a first and last year to split by Year.
Split Information Summary
Check your choices on a summary screen before you click Next.
Keeps Your Data Intact and Shows Progress
Original structure and mail properties stay in the new files.
Folder Hierarchy Kept
PCVITA maintains the folder hierarchy of the original PST file in the smaller files.
Email Properties Kept
To, From, Cc, Bcc, attachments and appointments stay as they were.
All Outlook Items
Emails, contacts, calendars, journals, tasks, notes and address book items split alike.
Progress With Stop and Home
Watch the split on a progress screen and select Stop or Home.
Corrupt or Inaccessible PST Files
The tool lists corrupt and inaccessible PST files of any size as supported.
Test the split modes on your own PST file. Free demo splits the first 50 items.
Why Large PST Files Need Splitting
Four points from Microsoft Learn and the answer PCVITA gives to every point.
- 1
Outlook Sets a Default Size Limit
Microsoft Learn lists 50 GB as the default Unicode PST limit for Outlook 2016, 2013 and 2010 and 20 GB for Outlook 2007 and 2003. PCVITA Outlook Split PST File Tool cuts a large file into parts from 1 MB to 1 TB, so no part crowds that limit.
- 2
Warning Size Triggers Compaction
Microsoft says Outlook starts compaction when a file reaches its warning size and then blocks sending mail stored in Sent Items. Copying and moving items inside the file stops too. PCVITA divides the data into smaller files before the file gets that big.
- 3
Archive Files Hit the Limit Too
Microsoft states that Auto-Archive fails for an archive file that reaches the limit. PCVITA splits an archive PST by year or date range, so older years move into files of their own.
- 4
ANSI Files Stop Near 2 GB
Microsoft lists 1.933 GB as the default ANSI limit against 50 GB for Unicode files in newer Outlook versions. PCVITA names Outlook 2021 and all earlier versions among the supported PST sources.
Prepare Your PST Files Before You Split
Seven checks to finish before the first split. Mark them off as you go.
- Back up the original PST file to another drive, so your source data stays untouched.
- Gather your PST files in one folder or note the drive that holds them for the Search Files option.
- Choose the split mode. Size makes equal parts. Date and Year build archives. Folder, Email ID and Category sort the data.
- Decide the value. Note the part size, the date ranges or the From and To years before you start.
- Select a destination folder on a drive with free space for the new PST files.
- Confirm .NET Framework 4.5 or above plus 100 MB of disk space on your PC.
- Test the free demo first. Download the PST split demo, split one file and check the result. The demo covers the first 50 items.
System needs sit in the Specifications below. Size limits come from the Microsoft page under Sources.
Free Demo and Full Edition Pricing
Split 50 items in the free demo, then buy the licence once your results look right. Features match across the demo and the full edition. The item count is the only difference.
Demo Edition
Free
Test the split on your own PST file
- Split modesAll six
- Items splitFirst 50 items
- Split InformationIncluded
Version 8.1, 26.1 MB, Windows
Full Edition
$49 full edition
Split large PST files with no item limit
- Split modesAll six
- Items splitEvery item
- Split InformationIncluded
30 Days Money Back*, Safe & Secure checkout
Included in Both Editions Features match, the item count differs
- Add Single or Multiple PST Files
- Six Split Modes for PST Files
- Search Files on a Selected Drive
- Split Information Summary
- Corrupt PST File Support
- Support From Windows 11 to 7
PST Splitter Specifications
Version, system needs and split options in one place.
| Version | 8.1 |
|---|---|
| File size | 26.1 MB |
| MD5 | 1775b11b |
| Windows versions | Windows 11 (64 bit), 10, 8 and 7 (32 or 64 bit), plus Windows Server 2019, 2016, 2012 R2 and 2008 |
| Prerequisite | Microsoft .NET Framework 4.5 or above |
| Disk space and RAM | 100 MB free disk space and 4 GB RAM |
| Processor | Intel Core 2 Duo E4600 at 2.40 GHz |
| Outlook PST versions | 2003, 2007, 2010, 2013, 2016, 2019 and 2021 in 32 and 64 bit |
| Free demo limit | Splits the first 50 items |
| Licence | Sent by email after payment |
| Input | Single or multiple PST files or folders, including corrupt and inaccessible files |
|---|---|
| Split modes | Size, Date, Year, Folder, Email ID and Category |
| Size range | 1 MB to 1 TB in MB, GB or TB |
| Date options | Select Date or Select Date Range(s) with many ranges |
| Year options | From and To years |
| Items covered | Emails, contacts, calendars, journals, tasks, notes and address book items |
| Kept in new files | Folder hierarchy, To, From, Cc, Bcc, attachments and appointments |
| Search | Search Files finds PST files on a selected drive |
| Outlook needed | No |
| User account | Standard or Guest user, no admin privilege |
PST Split Tool vs Outlook Manual Archive
See what Outlook gives you for moving old mail into a new PST file and where PCVITA goes further.
| Point | Outlook Archive | PCVITA Tool |
|---|---|---|
| What it does | Moves older items into a separate Outlook Data File (.pst) | Splits PST files you add into smaller PST files |
| Choices you set | An older than date and a folder with its subfolders | Size, Date, Year, Folder, Email ID or Category |
| Source of the data | Folders in your Outlook profile | One PST file, many PST files or a folder of PST files |
| Outlook needed | Yes, the command sits inside Outlook | No Outlook installation |
| When it is missing | Microsoft says the command is absent with an Exchange account that uses Online Archive and an administrator can disable it | Works on PST files you add, with no profile step |
| Size limits | Unicode files default to 50 GB in Outlook 2016, 2013 and 2010 | Parts from 1 MB to 1 TB |
| Where you get it | Built into Outlook | Free demo download, full edition $49 |
Archive details come from Archive items manually (Microsoft Support). Size limits come from Configure size limits for Outlook data files (Microsoft Learn). PCVITA details come from the Features and Specifications sections above.
What Limits Your PST Split Results
- Free demo splits the first 50 items, so buy the full edition to split every item.
- Size mode cuts a file into parts of the value you enter, so enter 1 MB to 1 TB.
- Files added by mistake stay in the list, so use Remove or Remove All before you click Next.
- New PST files need disk space beside the original, so check the destination drive first.
Follow the Software Guide from launch to split files. Check your results in the free demo before you buy.
Sources for PST Size and Archive Facts Microsoft pages that back the points above
- Microsoft LearnConfigure size limits for Outlook data files
- Microsoft SupportArchive items manually in Outlook
Split PST File FAQs
Short answers on split modes, price and Windows support, grouped by topic.
Working and Limits How split modes work and what stays in the files
How do I split a large PST file into smaller parts?
Six steps take you from launch to smaller files.
- Step 1. Open Split PST from the Start menu.
- Step 2. Click Add File(s), Add Folder or Search Files and add your PST files.
- Step 3. Click Browse and select a destination folder.
- Step 4. Choose Size, Date, Year, Folder, Email ID or Category.
- Step 5. Enter the size, date or years and click Next.
- Step 6. Check the Split Information, click Next and open the files from Destination Path.
How do I split a PST file by size?
Choose the Size mode and enter a value. Type the size in MB, GB or TB, click Next and check the Split Information. Click Next again to start. Sizes range from 1 MB to 1 TB.
Can I split a PST file by date or year?
Yes. For Date, choose Select Date and a calendar date or choose Select Date Range(s) to add many ranges. For Year, set the From and To years. Remove deletes a range you added by mistake.
Can I split a PST file by folder, email ID or category?
Yes, all three are split modes. Folder divides a PST file into parts like inbox.pst and sent.pst. Email ID separates items by the email ID of a sender. Category separates Email, Notes, Tasks, Calendars, Contacts and Journals.
Does the split keep my folders and attachments?
Yes. PCVITA keeps the folder hierarchy and the To, From, Cc, Bcc, attachments and appointments of every item. Your smaller files open in Outlook with the same structure as the original.
Can the tool split a corrupt PST file?
Yes. PCVITA lists corrupt and inaccessible PST files of any size as supported. Test your own file in the free demo before you buy the full edition.
How do I find PST files when I do not know the path?
Click Search Files. Search Files fetches PST files from the drive you select, so you skip the hunt through folders. Use Add Folder when you know the folder that holds many PST files.
Demo and Price Demo limits, price and licence
What does the free PST split demo do?
Demo edition splits the first 50 items. Test all six split modes and the Split Information summary on your own file. Buy the full edition to split every item.
What does the full PST split edition cost?
$49. That price buys the full edition with no item limit under a 30 day money back guarantee.
How do I receive my licence after payment?
Email delivers it after payment. Your licensed software lands in your inbox once the order clears. Demo users can ask PCVITA support for an activation key.
Compatibility and Files Windows versions, Outlook and related tools
Does the PST split software work on Windows 11 and 10?
Yes, on Windows 11 (64 bit), 10, 8 and 7 and on Windows Server 2019, 2016, 2012 R2 and 2008. Install .NET Framework 4.5 or above and leave 100 MB of disk space free.
Do I need Outlook installed to split a PST file?
No. PCVITA splits PST files with no Microsoft Outlook installation. PCVITA accepts PST files made by Outlook 2021 and all earlier versions.
Do I need admin rights to use the tool?
No. Standard and Guest users can use the tool with no admin privilege.
Can I split more than one PST file at once?
Yes. Add several PST files with Add File(s) or load a folder with Add Folder. PCVITA splits the files you add in one job.
Where do I find PCVITA tools to merge, extract or repair PST files?
PCVITA builds a separate tool for every job. Use the PST Merger Tool to join PST files, the PST Extractor to pull out PST data and the Outlook PST Repair Software for damaged files.
Still have a question about splitting PST files? Message us on Live Chat or use the Contact Us form.
Outlook Split PST File Tool Reviews
Ratings from pcvita.com plus what customers wrote about their results.
I was impressed with how easy the program is to use. This is the awesome software in order to split PST file with more splitting options. Support was also excellent. PCVITA support professionals were very active and they guided about each and every problems. I am very thankful to PCVITA support and developer team both.
Due to massive amount of email attachments in my mailbox the chances of PST corruption were always present. Thanks to PCVITA PST Splitter Tool through which I can easily manage my personal folders. Now, I have not to worry about losing all my stuff due to PST corruption.
Software Informer experts marked the PCVITA Split PST tool as a top utility to break large PST files on Windows 10. More badges sit on the PCVITA awards page.
Key Takeaways on Splitting PST Files
Five points to keep in mind before your first split.
- Six split modes. Size, Date, Year, Folder, Email ID and Category match the way you store mail.
- Size from 1 MB to 1 TB. Enter the part size in MB, GB or TB.
- Structure kept. Folder hierarchy, email properties and attachments stay in the new files.
- No Outlook needed. Add PST files, search a drive and split them on a Windows PC.
- Try before you buy. Demo edition splits 50 items. Full edition at $49 splits every item under a money back guarantee.
Split Your PST File With the Free Demo
Free demo splits the first 50 items of your PST file. Buy the full edition when you are ready to split the rest.
Safe & Secure · 30 Days Money Back*