GainTools Merge PST

gaintools-merge-pst

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joseph· 4mo ago
I had multiple PST files saved from different Outlook accounts and needed to combine them into one. I used this tool and the process was quite direct. I just selected the files, set the destination folder, and ran the merge process. It was completed without any issues and all folders and emails stayed in their proper structure. I didn’t have to do anything manually, which saved time compared to handling it through Outlook itself.
David Johnson· 4mo ago
I used this for merging old Outlook PST backup files into one PST. The process was simple, and the folder structure stayed in place after merging. ANSI and Unicode PST support is useful when files come from different Outlook versions. I also liked that the output can be saved locally. Good option for organizing multiple PST files on Windows.

GainTools Merge PST Tool is one of the best tools for merging multiple Outlook PST files into one file without losing any data. This software for free allows you easier to merge ANSI and Unicode PST files without losing email layout, folder structure, information, or attachments. It may be used for a lot of different things, both personal and business. It works with PST files that are password-protected and stops data from being copied. Anyone who aren't highly knowledgeable about technology can easily merge PST files with an interface that is clean and easy to use. Download Merge PST software works with all versions of Microsoft Outlook, from 2013 to 2021 and earlier. It works perfectly with Windows 11, 10, 8.1, 8, and 7. Important Features: Combine several PST files into one PST file It works with both ANSI and Unicode PST files. Keep the original folder structure and email format. Merge Contacts from more than one PST file Works with PST files that are password-protected Works with all versions of Outlook, from 2003 to 2021. No limit on file size The UI is simple to use and guides you through the procedure. You can try it out for free to see how it works.

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GainTools Merge PST merges multiple Outlook PST files into one without data loss.

for: IT admins, support staff, and users who need to combine Outlook PST archives.
pricing: freemium · free trial

Key features

8 features of GainTools Merge PST

Combine multiple PSTs — Merge any number of ANSI or Unicode PST files into a single PST.
Preserve folder structure — Keeps original email layout, folders, contacts, calendar and attachments intact.
Password-protected PST support — Can merge PST files that are secured with a password.
Selective folder merge — Choose to merge entire PSTs or only specific folders such as Inbox or Contacts.
Custom output folders — Save the merged PST in a new folder or create separate folders per source PST.
No file-size limit — Handles PST files of any size on supported Windows versions.
Fast, accurate merging — Processes merges quickly while retaining all mail properties without corruption.
Simple wizard UI — Step-by-step interface guides users through loading, selecting, and merging PSTs.

Use cases

Consolidate yearly Outlook archives into a single PST for easier backup.
Merge PSTs from multiple users after a department restructure.
Combine contacts and calendar data from several PSTs into one unified file.
Recover and merge PSTs after upgrading Outlook versions.

GainTools Merge PST vs alternatives

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	GainTools Merge PST	Mailvita Merge PST for Mac	TrustVare PST to MSG Converter	TrustVare OLM to Office 365 Converter	Mailvita PST to EML Converter for Mac
Best for	Merging Outlook PST files on Windows	Merge PST on macOS	PST to MSG conversion	OLM to Office 365 conversion	PST to EML conversion on Mac
Pricing	Freemium	One time fee	One time fee	One time fee	One time fee
DevHunt upvotes	0	1	0	1	0
Launched	Jan 2026	Jul 2025	Jan 2026	Jun 2025	Jan 2026