Dev tools · alternatives · 2026

24 alternatives to OST to Office 365 Migration Tool

Import multiple emails from OST files to Office 365 account.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. OST to Office 365 Migration Tool launched in 2022; newer entries below may have overtaken it.

1. 1
   OST emails to Office 365▲5

   export OST to Office 365

   2022 · its alternatives →

2. 2
   Office 365 Migration Tool▲64

   Backup tool for exporting Microsoft 365 mailbox data

   2022 · its alternatives →

3. 3
   OST to Office 365 Converter▲7

   OST to Office 365 Converter to convert OST to Office 365

   2023 · its alternatives →

4. 4
   MailsDaddy PST to Office 365 Migration▲2

   Fatest and safe solution to import OST file into Office 365

   2023 · its alternatives →

5. 5
   O365 Tenant to Tenant Migration Tool▲92

   Sysinfo Office 365 tenant to tenant migration tool

   2023 · its alternatives →

6. 6
   Exchange to Office 365 Migration Tool▲3

   This tool migrates all Exchange mailboxes to Office 365

   2022 · its alternatives →

7. 7
   MailsDaddy PST to Office 365 Migration Tool▲4

   Easily Import PST file Data to Office 365 (Exchange Online)

   2018 · its alternatives →

8. 8
   Office 365 Migration Tool▲1

   Best solution to export Office 365 mailbox items.

   2022 · its alternatives →

9. 9
   OST to PST Migration Tool▲3

   Migrate Multiple OST files into Outlook PST Instantly

   2022 · its alternatives →

10. 10
    Office 365 Export Tool▲2

    To export Office 365 emails to various file formats

    2023 · its alternatives →

11. 11
    MigrateEmails PST Migration Tool▲2

    Efficient tool to Migrate PST files to Office 365 Precisely.

    2023 · its alternatives →

12. 12
    Sysinfo OLM to Office 365 Migration Tool▲2

    OLM to Office 365 Migration Tool Migrate OLM to Office 365.

    2023 · its alternatives →

13. 13
    Office 365 to Office 365 Migration Tool▲1

    Migrate emails from Office 365 account to O365 accounts

    2022 · its alternatives →

14. 14
    OLM Converter▲55

    Optimum tool to convert OLM file without losing any data

    2022 · its alternatives →

15. 15
    DRS Softech Microsoft 365 Backup Tool▲11

    One Click to Backup, Migrate, and Protect Office 365.

    2025 · drssoftech.com · its alternatives →

16. 16
    Exchange to Office 365 Migration▲6

    Tool allows migrating Exchange Server to Office 365.

    2024 · its alternatives →

17. 17
    Office 365 Converter▲1

    Best Tool to Convert Office 365 Emails

    2022 · its alternatives →

18. 18
    DRS Yahoo to Office 365 Migration▲11

    Seamless Yahoo to Office 365 Email Migration Tool

    Oct 2025 · drssoftech.com · its alternatives →

19. 19
    Lotus Notes to Office 365 Migration Tool▲2

    Migrate Mailboxes from Lotus Notes to Office 365 format.

    2022 · its alternatives →

20. 20
    BitData Migration PST Converter▲8

    Export & convert Outlook PST file to multiple formats

    2024 · bitdatamigration.com · its alternatives →

21. 21
    OST File Recovery Tool▲3

    Hasslefree Recovery of Exchange OST Files

    2021 · its alternatives →

22. 22
    MacSonik Office 365 Backup Tool▲5

    Office 365 Migration to File Formats & Email Clients

    Jul 2026 · macsonik.com · its alternatives →

23. 23
    DRS Softech MBOX to Office 365 Migration▲7

    Fast & Secure MBOX to Office 365 Migration Made Easy

    2025 · drssoftech.com · its alternatives →

24. 24
    Shoviv IMAP to Office 365 Migration Tool▲7

    Migrate IMAP emails to Office 365

    2024 · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →