SysTools PST Merge is a software tool to combine multiple Outlook PST files into a single file without data loss.
Best DataVare Outlook PST Merge Tool Alternatives ranked by AI · updated Aug 2026
DataVare Outlook PST Merge Tool combines multiple Outlook PST files into one file or mailbox. It is intended for users consolidating archives and IT professionals performing Outlook data migrations.
Top 6 DataVare Outlook PST Merge Tool alternatives
Merge Stores for Outlook is a Windows utility for combining multiple Outlook data stores into a single store. It is intended for...
Pros
- Targets complete Outlook store consolidation rather than only individual PST folders
- Preserves common Outlook items such as messages, contacts, calendars, and tasks
- Designed specifically for Outlook workflows and data structures
Cons
- Windows and desktop Outlook focused
- Less useful for cloud-first Microsoft 365 migrations
- Paid licensing is less flexible than free PST utilities
Free trial; paid license from $29.95
3
Kernel for Outlook PST
Kernel Data Recovery
Kernel for Outlook PST converts or exports Outlook PST mailbox data to formats such as EML, MSG, MBOX, and HTML while also...
Pros
- Combines PST repair with conversion features
- Supports exports for several common email clients
- Provides folder-level selection and mailbox previews
Cons
- Conversion workflow is less streamlined than BitVare's for healthy files
- Interface feels dated compared with newer competitors
- Windows-only
Freemium, paid license required for full export
4
Stellar Merge PST
Stellar
Stellar Merge PST combines multiple Outlook PST files into a single PST while retaining mailbox folders and email content. It is aimed...
Pros
- More established vendor than Regain
- Supports merging multiple PST files into one output
- Usually provides a preview before saving merged data
Cons
- Paid licensing is required for full exports
- Windows-only workflow limits cross-platform use
- Can be more expensive than smaller PST utilities
5
OutlookFreeware Merge PST
OutlookFreeware
OutlookFreeware Merge PST is a utility for combining Outlook PST data files and folders. It suits technically comfortable Outlook users who prefer...
Pros
- Free for basic PST merging tasks
- More lightweight than full migration and recovery packages
- Useful for simple local archive consolidation
Cons
- Fewer enterprise controls than paid migration tools
- Less suitable for complex permissions or Microsoft 365 projects
- May require more manual preparation for duplicates and conflicts
6
Advik PST Merge Tool
Advik Software
Advik PST Merge Tool combines multiple Outlook PST files into a single PST while retaining common mailbox folders. It is aimed at...
Pros
- Simple workflow for combining multiple PST archives
- Supports common Outlook mailbox item types
- More accessible for occasional users than enterprise migration platforms
Cons
- Fewer advanced migration controls than leading commercial tools
- Windows-only desktop software
- Trial and licensing limits can affect large jobs
Free trial; paid license from $29
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