Stellar Converter for OST
Stellar Converter for OST is Windows software that converts Outlook OST files into PST files, including cases where an Exchange mailbox or Outlook profile is…
What Stellar Converter for OST is
Stellar Converter for OST is Windows software that converts Outlook OST files into PST files, including cases where an Exchange mailbox or Outlook profile is unavailable. It extracts emails, attachments, contacts, calendars, tasks, notes, and journals, and can process encrypted OST files. Output can be saved as PST, MSG, EML, RTF, HTML, or PDF. The demo allows previewing converted data before export and has no stated file-size limitation. The software can split large PST output at around 45 GB, while the FAQ says OST file size has no limit. The Technician edition adds batch conversion and exports to live Exchange and Microsoft 365. It runs on 64-bit Windows 11, 10, 8.1, and 8.
Good
- Extracts emails, contacts, calendars, and journals
- Supports encrypted OST files
- Offers several export formats
- Previews data before export
- Batch conversion in Technician edition
Watch out
- Windows-only, 64-bit support
- No free plan
- Single-system license listed
- Annual plans have mailbox or device limits
Who it suits
It suits Windows users who need to recover or convert OST mailbox data, including encrypted files or unavailable profiles. Technician and Toolkit plans fit bulk licensing needs.
Verdict
Stellar Converter for OST covers OST recovery, preview, multiple export formats, and batch processing. Check the Windows requirement and paid licensing structure before choosing a plan.
Plans and prices
From Stellar Converter for OST's own pricing page, checked 9 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Corporate | $79 a year | 5 mailboxes · single-device license · 1 Year License |
| Technician | $149 a year | Unlimited mailboxes · bulk licensing available · 1 Year License |
| Toolkit | $199 a year | Unlimited mailboxes · includes 7 tools · bulk licensing available · 1 Year License |
The facts
Each one read from Stellar Converter for OST's own pages, with the date it was checked.
What it does
- Encrypted files
- The product page says the software can convert encrypted OST files.checked 9 Oct 2026
- Exchange and Microsoft 365
- The Technician edition supports batch OST conversion and exports to live Exchange and Microsoft 365.checked 9 Oct 2026
- Large files
- The tool can automatically split large PST files at around 45 GB, and the FAQ says there is no limit on OST file size.checked 9 Oct 2026
- License scope
- The specifications list a single-system license; the FAQ says Technician and Toolkit also offer bulk licensing for up to 500 devices or systems.checked 9 Oct 2026
- Mailbox data
- It extracts emails, attachments, contacts, calendars, tasks, notes, and journals from OST files.checked 9 Oct 2026
- Output formats
- It can save mailbox data as PST, MSG, EML, RTF, HTML, or PDF files.checked 9 Oct 2026
- Purpose
- The software converts Outlook OST files into PST files, including when the Exchange mailbox or Outlook profile is unavailable.checked 9 Oct 2026
- Support
- The product page links to a user manual and knowledge base, and the purchase page lists technical support by phone.checked 9 Oct 2026
The company
- Founded
- The company page says Stellar has provided data care expertise since 1993.checked 9 Oct 2026
- Headquarters
- The company describes itself as based in India and lists its Gurugram, Haryana address.checked 9 Oct 2026
- Maker and certification
- Stellar identifies itself as Stellar Data Recovery and says the organization is ISO 9001 and ISO 27001 certified.checked 9 Oct 2026
Money
- Preview trial
- The free demo allows users to preview converted file data; the page states it has no file-size limitations.checked 9 Oct 2026
Where it runs
- Supported Windows versions
- The listed operating systems are 64-bit Windows 11, 10, 8.1, and 8.checked 9 Oct 2026
Alternatives to Stellar Converter for OST
- 1
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