Merge PST Files for Outlook VS PST Splitter for Outlook

SysTools PST Merge - PST Merge Tool precisely join or merge multiple PST files in Outlook 2019, 2016, 2013, 2010

Kernel for PST Split - Split large PST file into smaller and manageable PST file with Kernel for PST Split Tool.

ReliefJet Essentials for Outlook - A large set of useful and easy-to-use tools for every Microsoft Outlook user: Import, export and convert using EML,MSG,TXT and PST formats; remove duplicate items, process attachments and extract addresses; get reports and statistics and even more...

Cigati Outlook PST Splitter - Cigati Outlook PST Splitter to break, divide and split PST files by Size, Date, Year, Folder & Email address of the sender, PST File Splitter capable to split large Outlook PST files.

Regain Outlook PST Merger - Merge Multiple Outlook PST Files into Single PST file

Aryson Merge PST - Aryson Merge PST Tool allows to easily merge or combine more than two or multiple PST files into simple one PST file including all email items. It is one of the best software to merge PST files successfully.