Stellar Converter for OST

Paid#12 of 33 in Email Recovery Software

Stellar Converter for OST: A focused Windows tool for OST conversion, recovery, and mailbox export. Ranked #12 of 33 in Email Recovery Software by our editors (8.0/10); pricing: Paid; best for mature OST conversion.

8.0/10★★★★☆Editor score

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At a glance

• Editor score
  8.0 / 10
• Pricing
  Paid
• Best for
  Mature OST conversion
• Free plan
  No
• Paid from
  $99/yr
• Founded
  1993 · India
• Facts checked
  20 Sep 2026

• Where it wins

  • Converts encrypted and inaccessible OST files into multiple formats
  • Preserves folder hierarchy and previews mailbox items before export
  • Technician tier supports batch conversion and Exchange or Microsoft 365 export

• Where it doesn't

  • Windows-only support limits platform flexibility
  • There is no free plan for basic conversion work
  • Batch conversion and live exports require the $199 Technician tier

Our verdict on Stellar Converter for OST

Stellar Converter for OST is desktop software for Outlook users, IT administrators, and organizations recovering or migrating mailbox data. It converts inaccessible, orphaned, encrypted, or oversized OST files and extracts emails, attachments, contacts, calendars, tasks, notes, and journals. Supported outputs include PST, MSG, EML, RTF, HTML, and PDF, with original folder hierarchy preservation. Windows 11, 10, 8.1, and 8 are supported in 64-bit versions.

Pricing is organized into three paid tiers. Corporate costs $99 with OST-to-PST conversion, mailbox previews, and saving to PST, EML, MSG, RTF, HTML, and PDF. Technician costs $199 and includes Corporate features plus batch conversion of multiple OST files, PST compaction and splitting, and exports to live Exchange and Microsoft 365. Toolkit costs $499 and adds a 7-in-1 Outlook toolkit for converting, repairing, splitting, compacting, merging, undeleting, and resetting Outlook passwords. The listed pricing uses one-time plans shown with annual billing, and regional pricing may differ.

The product’s strongest fit is mature OST conversion with a practical path from individual recovery to larger mailbox operations. Auto-location of OST files, encrypted-file conversion, preview before saving, and hierarchy preservation address common recovery requirements, while Exchange and Microsoft 365 exports support migration workflows. Its Windows-only scope and lack of a free plan make it less suitable for teams needing cross-platform access or no-cost evaluation. Choose Corporate for straightforward conversion and Technician when batch processing or direct service exports matter; choose Toolkit when broader Outlook repair and management functions justify the higher tier.

Your product? Our editors can test Stellar Converter for OST in depth and publish a review, labelled as paid · from $149/mo →

Stellar Converter for OST pricing

All 3 Stellar Converter for OST plans and prices →

Stellar Converter for OST fact sheet

Stellar Converter for OST integrations

Stellar Converter for OST lists 3 integrations on its own site.

• Microsoft Outlook
• Microsoft Exchange
• Microsoft 365

Alternatives to Stellar Converter for OST

• SysTools Email RecoveryA Windows toolkit covering Outlook, Exchange, deleted data, batch recovery, and broad exports.9.3
• PST WalkerA focused Windows toolkit for Outlook file recovery, search, repair, and export.9.1
• BitRecover Exchange RecoveryA budget-friendly Exchange EDB recovery tool with broad exports and a usable free tier.9.0

See all Stellar Converter for OST alternatives →

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Featured on iTechGuides

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update