SysTools OST Recovery is a tool to recover corrupted or orphaned OST files and save them into different file formats.
Best Cigati OST Converter Alternatives ranked by AI · updated Aug 2026
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Cigati OST Converter extracts mailbox data from orphaned or inaccessible OST files and saves it to PST and other formats. It is intended for Outlook users and support teams needing straightforward recovery with filtering and preview tools.
Top 6 Cigati OST Converter alternatives
Regain OST Converter is a Windows utility for converting Outlook OST files into accessible formats such as PST. It targets users recovering...
Pros
- Converts inaccessible or orphaned OST files without requiring the original Exchange connection
- Preserves mailbox folders and common Outlook item types during PST export
- Supports batch conversion of multiple OST files
Cons
- Windows-only, unlike some browser-based migration tools
- Less widely documented than Stellar or SysTools
- Full conversion requires a paid license
Aryson OST to PST Converter is a tool to convert OST files to PST format with ease.
Stellar Converter for OST is a popular tool for converting inaccessible OST files to PST format.
Pros
- Simple and user-friendly interface
- Supports batch conversion
Cons
- Limited format support
- No option for selective conversion
5
Kernel for OST to PST
Kernel Data Recovery
Kernel for OST to PST converts inaccessible Outlook OST files into PST files while preserving mailbox folders and message properties. It serves...
Pros
- Supports recovery from orphaned, inaccessible, and corrupted OST files
- Preserves folder hierarchy and common Outlook mailbox attributes
- Offers selective saving and multiple output formats
Cons
- The full version is relatively costly for occasional personal use
- Windows-only and dependent on local machine resources
- Some advanced options are separated across product editions
Free trial; paid version from $49
6
RecoveryTools OST Converter
RecoveryTools
RecoveryTools OST Converter extracts Outlook mailbox data from inaccessible OST files and converts it to PST, EML, MSG, MBOX, and other formats....
Pros
- Supports a wide range of destination formats
- Includes batch conversion and selective folder export
- Can preserve common Outlook items and folder hierarchy
Cons
- Recovery depth and documentation are less established than Stellar's
- Windows-only desktop software
- Advanced export options may require a higher license tier
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