Quick Overview
- 1#1: Stellar Converter for OST - Converts inaccessible or orphaned OST files to PST, EML, MSG, and other formats while preserving folder structure and email attributes.
- 2#2: SysTools OST to PST Converter - Reliably converts healthy, orphaned, or corrupted OST files to PST with support for bulk conversion and multiple file formats.
- 3#3: Kernel OST to PST Converter - Recovers and converts corrupted, orphaned, or password-protected OST files to PST format with advanced filtering options.
- 4#4: Shoviv OST to PST Converter - Migrates OST data to PST, Live Exchange, Office 365, and other platforms with incremental export and no file size limitations.
- 5#5: BitRecover OST to PST Converter - Batch converts multiple OST files to PST, EML, and 40+ formats with split PST feature and support for large files.
- 6#6: Aryson OST to PST Converter - Exports OST emails to PST, Office 365, and Live Exchange while maintaining data integrity and offering preview functionality.
- 7#7: Advik OST to PST Converter - Single-click conversion of OST to PST with support for all Outlook versions and preservation of email properties.
- 8#8: MailsDaddy OST to PST Converter - Converts corrupted or orphaned OST files to PST and 11+ formats with date range filters and no Outlook installation required.
- 9#9: eSoftTools OST to PST Converter - Recovers and converts OST to PST, EML, MSG, and cloud platforms with bulk processing and selective folder migration.
- 10#10: DataNumen Outlook Repair - Repairs corrupted OST files and saves recoverable data directly to PST format with high recovery rate for severely damaged files.
These tools were chosen based on conversion reliability, supported formats, additional features like orphaned file recovery or cloud migration, ease of use, and overall value, ensuring top performance for users with varied requirements.
Comparison Table
Choosing the right OST to PST conversion tool can be challenging, and this comparison table streamlines the process by highlighting tools like Stellar Converter for OST, SysTools OST to PST Converter, and others. Readers will discover key features, performance nuances, and usability factors to identify the best software for their specific needs.
| # | Tool | Category | Overall | Features | Ease of Use | Value |
|---|---|---|---|---|---|---|
| 1 | Stellar Converter for OST Converts inaccessible or orphaned OST files to PST, EML, MSG, and other formats while preserving folder structure and email attributes. | specialized | 9.5/10 | 9.7/10 | 9.3/10 | 9.1/10 |
| 2 | SysTools OST to PST Converter Reliably converts healthy, orphaned, or corrupted OST files to PST with support for bulk conversion and multiple file formats. | enterprise | 9.1/10 | 9.3/10 | 9.4/10 | 8.8/10 |
| 3 | Kernel OST to PST Converter Recovers and converts corrupted, orphaned, or password-protected OST files to PST format with advanced filtering options. | specialized | 8.4/10 | 8.8/10 | 8.5/10 | 8.0/10 |
| 4 | Shoviv OST to PST Converter Migrates OST data to PST, Live Exchange, Office 365, and other platforms with incremental export and no file size limitations. | enterprise | 8.4/10 | 9.0/10 | 8.5/10 | 7.8/10 |
| 5 | BitRecover OST to PST Converter Batch converts multiple OST files to PST, EML, and 40+ formats with split PST feature and support for large files. | specialized | 8.2/10 | 8.5/10 | 9.0/10 | 7.5/10 |
| 6 | Aryson OST to PST Converter Exports OST emails to PST, Office 365, and Live Exchange while maintaining data integrity and offering preview functionality. | specialized | 7.6/10 | 8.0/10 | 7.8/10 | 7.0/10 |
| 7 | Advik OST to PST Converter Single-click conversion of OST to PST with support for all Outlook versions and preservation of email properties. | specialized | 7.2/10 | 7.0/10 | 8.5/10 | 7.3/10 |
| 8 | MailsDaddy OST to PST Converter Converts corrupted or orphaned OST files to PST and 11+ formats with date range filters and no Outlook installation required. | specialized | 8.0/10 | 8.2/10 | 8.8/10 | 7.5/10 |
| 9 | eSoftTools OST to PST Converter Recovers and converts OST to PST, EML, MSG, and cloud platforms with bulk processing and selective folder migration. | specialized | 8.1/10 | 8.4/10 | 8.7/10 | 7.6/10 |
| 10 | DataNumen Outlook Repair Repairs corrupted OST files and saves recoverable data directly to PST format with high recovery rate for severely damaged files. | specialized | 7.8/10 | 8.5/10 | 7.5/10 | 7.2/10 |
Converts inaccessible or orphaned OST files to PST, EML, MSG, and other formats while preserving folder structure and email attributes.
Reliably converts healthy, orphaned, or corrupted OST files to PST with support for bulk conversion and multiple file formats.
Recovers and converts corrupted, orphaned, or password-protected OST files to PST format with advanced filtering options.
Migrates OST data to PST, Live Exchange, Office 365, and other platforms with incremental export and no file size limitations.
Batch converts multiple OST files to PST, EML, and 40+ formats with split PST feature and support for large files.
Exports OST emails to PST, Office 365, and Live Exchange while maintaining data integrity and offering preview functionality.
Single-click conversion of OST to PST with support for all Outlook versions and preservation of email properties.
Converts corrupted or orphaned OST files to PST and 11+ formats with date range filters and no Outlook installation required.
Recovers and converts OST to PST, EML, MSG, and cloud platforms with bulk processing and selective folder migration.
Repairs corrupted OST files and saves recoverable data directly to PST format with high recovery rate for severely damaged files.
Stellar Converter for OST
specializedConverts inaccessible or orphaned OST files to PST, EML, MSG, and other formats while preserving folder structure and email attributes.
Advanced scan and repair engine that recovers data from severely damaged OST files without requiring an Outlook profile
Stellar Converter for OST is a robust utility specialized in converting Microsoft Outlook OST files to PST format, allowing users to access offline email data even without an active Outlook profile. It excels at repairing corrupted, orphaned, or password-protected OST files while preserving folder structure, emails, contacts, calendars, and attachments. The software supports bulk conversion, advanced filtering options, and exports to multiple formats like EML, MSG, PDF, and HTML, making it ideal for data migration and recovery scenarios.
Pros
- Superior repair capabilities for highly corrupted or orphaned OST files
- Multiple export formats and preview functionality for selective conversion
- No need for Outlook installation and supports large files efficiently
Cons
- Paid software with limited free trial (demo saves only 25 items)
- Windows-only, no native Mac support
- Higher pricing tiers for commercial use
Best For
IT administrators, Outlook users, and data recovery professionals handling inaccessible or damaged OST files from Exchange or IMAP accounts.
Pricing
Starts at $99 for Home license (1 year), $199 for Technician (unlimited conversions), with free demo available.
SysTools OST to PST Converter
enterpriseReliably converts healthy, orphaned, or corrupted OST files to PST with support for bulk conversion and multiple file formats.
Automated repair of corrupted OST files prior to conversion, ensuring data integrity without additional tools
SysTools OST to PST Converter is a robust Windows-based utility that enables users to convert orphaned or corrupted OST files to PST format without requiring Microsoft Outlook installation. It supports batch processing of multiple OST files, preserves complete folder structure, email attributes, and attachments, and offers advanced filters like date range and item type selection. The tool is particularly effective for data recovery and migration scenarios in enterprise environments.
Pros
- Handles corrupted and password-protected OST files seamlessly
- Batch conversion for multiple files with no size limits
- Preview functionality and selective migration filters
Cons
- Windows-only, no Mac or Linux support
- No free version; trial limited to 25 items
- Higher pricing for enterprise licenses
Best For
IT administrators and professionals needing to recover or migrate large volumes of OST data from damaged profiles to PST format.
Pricing
Personal license $39, Admin $99, Enterprise $229; free trial available.
Kernel OST to PST Converter
specializedRecovers and converts corrupted, orphaned, or password-protected OST files to PST format with advanced filtering options.
Advanced OST repair module that recovers highly corrupted files before PST conversion
Kernel OST to PST Converter by Nucleus Technologies is a specialized Windows utility for converting healthy or corrupted OST files to PST format, enabling seamless access in Microsoft Outlook. It supports recovery from orphaned or damaged OST files, preserves folder hierarchy, email properties, and attachments during conversion. The tool offers preview options, filtering capabilities, and batch processing for efficient data migration.
Pros
- Reliably repairs and converts corrupted OST files
- Batch conversion with filtering options
- Maintains complete data integrity and structure
Cons
- Free trial limits conversions to 25 items per folder
- Windows-only, no Mac or Linux support
- No direct integration with cloud services
Best For
IT professionals and Outlook users needing to recover and migrate data from damaged or inaccessible OST files.
Pricing
Personal license starts at $49; Technician license at $229; Enterprise options available.
Shoviv OST to PST Converter
enterpriseMigrates OST data to PST, Live Exchange, Office 365, and other platforms with incremental export and no file size limitations.
Advanced OST repair module that recovers severely damaged files without data loss
Shoviv OST to PST Converter is a robust desktop application specialized in converting OST files to PST format, allowing users to migrate offline Outlook data without needing Microsoft Outlook installed. It excels at repairing and recovering corrupted, orphaned, or password-protected OST files while preserving folder structure, email attributes, and attachments. Additionally, it supports bulk conversion and export to multiple formats including EML, MSG, HTML, and PDF for versatile data accessibility.
Pros
- Handles corrupted and orphaned OST files effectively with high recovery rates
- Supports batch conversion and multiple export formats without file size limits
- User-friendly interface with no Outlook dependency
Cons
- Windows-only compatibility, no macOS or Linux support
- Trial version limits exports to 25 items per folder
- Higher pricing tiers required for multi-user or commercial use
Best For
IT administrators and Outlook users needing reliable recovery and conversion of corrupted OST files to PST for data migration or backup.
Pricing
Free trial available; full licenses start at $99 (Personal), $199 (Enterprise), and $299 (Technician with multi-system support).
BitRecover OST to PST Converter
specializedBatch converts multiple OST files to PST, EML, and 40+ formats with split PST feature and support for large files.
Seamless conversion of orphaned OST files without requiring Outlook or Exchange connectivity
BitRecover OST to PST Converter is a standalone Windows utility that converts Outlook OST files to PST format, enabling access to offline mailbox data without an Exchange server or Outlook installation. It supports batch processing of multiple OST files while preserving folder hierarchy, email attributes, and attachments. The tool also handles corrupted or orphaned OST files, making it reliable for data recovery scenarios.
Pros
- Batch conversion for multiple OST files
- No Outlook dependency for conversion
- Effective repair for corrupted OST files
Cons
- Windows-only compatibility
- Full features require paid license after trial
- Limited advanced filtering options compared to competitors
Best For
IT professionals and users needing quick recovery of orphaned or corrupted OST files into PST format.
Pricing
Free trial available; personal license starts at $29, technician at $99, enterprise at $199.
Aryson OST to PST Converter
specializedExports OST emails to PST, Office 365, and Live Exchange while maintaining data integrity and offering preview functionality.
Advanced corruption repair for damaged OST files, recovering data even from severely inaccessible sources
Aryson OST to PST Converter is a Windows-based utility that converts Outlook OST files to PST format, allowing users to access offline cached data even without an active Exchange server or Outlook installation. It supports recovery from corrupted or orphaned OST files, preserving folder hierarchy, emails, contacts, calendars, and attachments. The tool also offers exports to multiple formats like EML, MSG, HTML, and PDF, with options for filtering and batch processing.
Pros
- Repairs and converts corrupted OST files without Outlook
- Multiple export formats including PST, EML, MSG, and PDF
- Batch conversion and filtering options for selective recovery
Cons
- Windows-only, no Mac or Linux support
- Trial version adds watermarks and has limitations
- Higher-tier licenses required for commercial use
Best For
IT professionals or Outlook users needing to recover data from orphaned or damaged OST files into accessible PST format.
Pricing
Personal license $29; Admin $49; Enterprise $79; Technician $149 (one-time purchase with free updates).
Advik OST to PST Converter
specializedSingle-click conversion of OST to PST with support for all Outlook versions and preservation of email properties.
Fully independent operation without needing Outlook or Exchange server connectivity
Advik OST to PST Converter is a specialized Windows utility from adviksoft.com that enables direct conversion of Outlook OST files to PST format without requiring Microsoft Outlook installation. It supports batch processing, maintains folder structure, email properties, attachments, and handles corrupted OST files effectively. This tool is ideal for users migrating offline Exchange data to standard PST for broader accessibility.
Pros
- No Outlook installation required for conversion
- Batch conversion for multiple OST files
- Preserves data integrity including attachments and formatting
Cons
- Limited to OST to PST (no multi-format export options)
- Lacks advanced filtering or search capabilities
- Windows-only, no Mac or Linux support
Best For
Users seeking a simple, standalone tool to convert corrupted or orphaned OST files to PST without Outlook.
Pricing
Personal license starts at $39; business and technician editions up to $229; free trial with limitations.
MailsDaddy OST to PST Converter
specializedConverts corrupted or orphaned OST files to PST and 11+ formats with date range filters and no Outlook installation required.
Built-in OST repair functionality that recovers data from damaged files before converting to PST
MailsDaddy OST to PST Converter is a Windows-based utility designed specifically for converting Outlook OST files to PST format, allowing users to recover and access data from orphaned or corrupted OST files without needing an active Exchange server or Outlook installation. It supports batch processing of multiple OST files, preserves email metadata, attachments, and folder structures, and offers additional export options to EML, MSG, HTML, and PDF formats. The tool includes a preview feature for verifying data integrity before conversion.
Pros
- Intuitive drag-and-drop interface for easy operation
- Handles corrupted and password-protected OST files effectively
- Batch conversion and no file size limits
Cons
- Windows-only, no Mac or Linux support
- Full features require paid license after trial
- Limited advanced filtering or search options compared to enterprise tools
Best For
Individual users or small businesses seeking a straightforward, reliable OST to PST converter without Outlook dependency.
Pricing
Free demo version available; personal license $39, enterprise license $99 (one-time purchase).
eSoftTools OST to PST Converter
specializedRecovers and converts OST to PST, EML, MSG, and cloud platforms with bulk processing and selective folder migration.
Advanced corruption repair for severely damaged OST files while maintaining data integrity
eSoftTools OST to PST Converter is a dedicated Windows-based utility for converting Microsoft Outlook OST files to PST format, supporting both healthy and corrupted files without requiring Outlook installation. It enables batch conversion, preserves folder hierarchy, and offers export options to EML, MSG, HTML, PDF, and more. Advanced filters like date range and sender allow selective migration, making it suitable for data recovery and transfer scenarios.
Pros
- Repairs and converts corrupted or password-protected OST files effectively
- Supports multiple output formats and batch processing
- Intuitive interface with no Outlook dependency
Cons
- Limited to Windows platform only
- Free demo restricts to 25 items per folder
- Processing large files can be time-consuming
Best For
IT admins and users needing reliable recovery of damaged OST files for Outlook PST import without reinstalling Outlook.
Pricing
Free demo (25 items/folder limit); paid licenses start at $39 (Personal), $99 (Business), $199 (Enterprise).
DataNumen Outlook Repair
specializedRepairs corrupted OST files and saves recoverable data directly to PST format with high recovery rate for severely damaged files.
Advanced multi-pass scanning algorithm that achieves high success rates on severely damaged OST files during conversion to PST
DataNumen Outlook Repair is a robust recovery tool specializing in repairing corrupted PST and OST files for Microsoft Outlook, with built-in support for converting OST files to PST format. It scans damaged files to recover emails, attachments, contacts, calendars, tasks, notes, and journal entries, even from severely corrupted or oversized files. The software handles password-protected files and offers advanced options like de-duplication and selective recovery, making it suitable for data recovery scenarios involving offline Outlook storage.
Pros
- Exceptional recovery rates for heavily corrupted OST files
- Supports conversion of OST to PST with full item recovery including attachments
- Handles very large files (over 50GB) and password-protected OSTs effectively
Cons
- Primarily repair-focused, so basic OST to PST conversions feel secondary
- Windows-only with no native Mac or mobile support
- Full features require purchase after limited demo trial
Best For
IT administrators and Outlook users needing reliable repair and conversion of corrupted OST files to accessible PST format.
Pricing
Demo free with limitations; full license starts at $49.95 for 1 PC, with volume discounts up to $249.95 for 10 PCs.
Conclusion
Among the top OST to PST tools, Stellar Converter for OST leads as the top choice, excelling in preserving data integrity for inaccessible files. SysTools OST to PST Converter stands out for reliable bulk processing, while Kernel OST to PST Converter impresses with advanced filtering for damaged or password-protected files—each offering distinct features to cater to varied user needs.
Take the first step toward hassle-free OST to PST conversion: try Stellar Converter for OST to leverage its seamless performance and trust-worthy results.
Tools Reviewed
All tools were independently evaluated for this comparison