Softaken Split PST Pro Review 2026: Speed, Features, and Accuracy Test ?
By denniswrite 11-08-2026 3
Summary
Outlook PST files that are large can be difficult to manage as time goes by. As a PST grows, users may experience slower searches, longer backup times and issues when moving or archiving mailbox data. Breaking a large PST into smaller, more organized files can make Outlook data easier to manage.
Softaken Split PST Pro is used to split large Outlook PST files into small PST files by size, folder, date, sender, attachment size and many other parameters. In this Split PST Pro Review 2026 we review Split PST Pro features, speed, accuracy, usability, pros and cons, pricing and overall performance.
What Is Softaken Split PST Pro?
Split PST Pro 7.0 is an Outlook PST splitter tool to split large PST file into small and manageable files. The software works without Microsoft Outlook installation and supports ANSI and Unicode PST files. It says that the tool is able to split PST files while preserving the mailbox hierarchy and metadata.
This simple-to-use utility is helpful for users who want to reduce the size of large Outlook archives, manage historical mailbox data, or prepare PST files for backup and migration.
Split PST Pro Highlights
1. Divide PST by Custom Size
One of the major features includes splitting a PST on the basis of a selected file size. Now has provided the option of configurable limit ranging from 5 MB to 10 GB to create smaller PST files as per users’ storage or management needs.
2. Split PST by Folder
Users can select folders and subfolders rather than downloading the entire mailbox. This comes in handy when specific sections of a PST need to be divided.
3. Date-wise PST Splitting
Supports splitting up by date. Users can group PST data by day, month, quarter or year. Splitting by year can be particularly useful if you want to maintain separate archives for each year.
4. Split Emails by Sender or By Domain
Split PST Pro can split emails based on sender name or domain. This gives you another way to organize mailbox data when users want separate PST files for certain senders or groups.
5. Breaking Large Attachments into Multiple Emails
The ability to split emails by attachment size is also handy. Moving large attachment emails into another PST file will help to reduce the size of the primary mailbox file.
6. Divide by Item Type
Software can extract specific types of Outlook data such as emails, contacts, tasks and calendars. This provides the user with more control over the organization of their mailbox data.
7. Several Split Rules
Allows you to combine multiple conditions together. Users can combine rules, like sender, size or other filters while creating split PST files.
8. Pre-flight checks
Before it begins splitting, the software checks available disk space and the health of the source file. This is to minimize possible processing problems.
9. Split Report / session logs
After processing, Softaken Split PST Pro can generate a SplitReport.json which contains data such as item count, file status and filter information. It also logs sessions and this can be helpful for troubleshooting and tracking the process.
Speed test.
Speed is a big factor when working with large PST files. Split PST Pro is a utility to save time compared to manual management of large Outlook archives. But the real amount of time needed depends on the size of the PST, number of items, volume of attachments, disk speed, available memory, and splitting rules selected.
As per the official FAQ, there’s no specific processing time for all PST files, since some PST files may have different processing requirements.
Speed Verdict: Good for routine PST splitting. Performance dependent on file size, system resources and the split conditions chosen.
Accuracy Test
Accuracy is crucial in the splitting of Outlook data. A good PST splitter should maintain the original mailbox structure and should not change the source data unnecessarily.
says Split PST Pro creates smaller PST files while preserving the mailbox hierarchy and metadata. It also supports ANSI and Unicode PST files.
For accuracy testing the source PST has to be compared with resulting files and checked by users:
- e-mail messages
- Attachments
- Contact Information
- Calendars
- Career Opportunities
- Folder architecture
- Sub folders
- Email headers
- Quantity of items
Additionally, the generated SplitReport.json can help users to review the item counts and processing information after the operation.
Accuracy Verdict: Good feature support for keeping mailbox organized, but always check important business data after splitting.
User-friendliness
Softaken Split PST Pro is an easy process. To split a PST file, the user needs to add the PST file, select one of the splitting methods, select the required folders or filters, select an output location and start the process.
The software does not require Outlook installation, which makes the process easier for users who do not have Outlook installed on their computer.
Also, the trial version users can scan the mailbox and view the details of the folders and items before going for the purchase of the full version.
Supported PST and Windows Files
Softaken Split PST Pro supports ANSI PST files and Unicode PST files. The product page now says it is compatible with Windows 11, 10, 8.1, 8 and 7.
The software specs require a minimum of 512 MB of RAM and around 100 MB of free storage space, but obviously larger PST operations will do better with beefier system resources.
Pros
- Split large Outlook PST file into smaller files
- No need to install Microsoft Outlook
- Supports ANSI & Unicode PST files.
- Offers nine distinct splitting methods
- Custom file size limits from 5MB to 10GB
- Select folder and subfolders
- Supports splitting based on dates
- Can split e-mail by sender / domain
- Can manage separate e-mails with large attachments
- Supports splitting email, contacts, tasks and calendar
- Offers several split rules
- Generates SplitReport.json file
- Provides session logs for troubleshooting purposes
- Includes pre-flight validation.
- Trial version available
Cons
- Paid version: full unlimited functionality
The official FAQ clearly states that the software works on one PST file at a time and recommends repairing a corrupted PST before using Split PST Pro.
Split PST Pro
The demo version is available for evaluation, the full version allows unlimited splitting. The demo is limited to 10 items in the current trial comparison.
Tags : Split PST Split PST Pro Review
