For most readers, CubexSoft EML Converter is the default pick at $29 for a one-time Personal license, with BitRecover EML Converter Wizard as a close second at the same $29 starting price for EML work. Most tools in this list use a one-time charge, while Stellar Converter for EDB is the exception at $299 per year for its Corporate license, which covers 50 mailboxes. Demo limits differ more than prices do: SysTools exports the first 50 items, MacSonik converts 50 emails per folder, ZOOK exports 25 items per folder, and MailsDaddy exports the first 20 items per folder.
Email converter software moves messages between file types and mail systems, such as PST, OST, EDB, MBOX, EML and MSG. The right choice depends on your source file, your target format, your operating system and how many machines you need to cover. Prices below were checked on official vendor pages on 2026-11-12. Most tools here charge once, so the license length and the demo limit matter as much as the headline price.
On this page
Best email converter software: comparison table
Swipe the table sideways on a phone to see every column.
| # | Name | Best for | Starting price | Free plan / trial | Link |
|---|---|---|---|---|---|
| 1 | SysTools Mail Converter | All-in-one PST, OST, EDB and MBOX conversion | $399 one-time payment | Free trial (first 50 items) | Visit |
| 2 | CubexSoft EML Converter | Low-cost EML conversion for home users | $29 one-time payment | Free trial | Visit |
| 3 | BitRecover EML Converter Wizard | Batch EML conversion with 38 saving choices | $29 one-time payment | Free trial | Visit |
| 4 | ZOOK MSG to EML Converter | MSG to EML conversion without Outlook | $49 one-time payment | Free trial (25 items per folder) | Visit |
| 5 | Aryson MBOX Migrator | MBOX to PST and cloud mailbox migration | $49 one-time payment | Free trial | Visit |
| 6 | Stellar Converter for EDB | Exchange EDB to PST for IT teams | $299 per year | Free trial (preview only) | Visit |
| 7 | MacSonik EML Converter Tool | EML conversion on a Mac | $49 one-time payment | Free trial (50 emails per folder) | Visit |
| 8 | MailsDaddy OST to PST Converter | OST recovery and conversion for 2 PCs | $49 one-time payment | Free trial (first 20 items per folder) | Visit |
The 8 best best email converter software tools, in detail
SysTools Mail Converter
Best for: All-in-one PST, OST, EDB and MBOX conversion
SysTools Mail Converter is the broadest tool in this list. It converts Outlook data file items, offline Outlook data, Exchange database files and MBOX files into PST, EML, EMLX, MSG, PDF and HTML. It also converts emails, contacts, calendars, tasks, notes and attachments, and it works with Windows 11 and earlier Windows versions.
- The trade-off is the price.
- At $399, it costs more than thirteen times the $29 starting price of CubexSoft and BitRecover.
- The demo exports only the first 50 items, so a large mailbox needs the full version before you can judge the full result.
- Choose SysTools if you need EDB and MBOX support in the same tool.
Pros
- Converts PST, OST, EDB and MBOX in one tool
- date filters for mail, calendar and task items
- keeps the original folder structure
Cons
- Starting price of $399 is far above the $29 tools in this list
- the demo exports only the first 50 items
CubexSoft EML Converter
Best for: Low-cost EML conversion for home users
CubexSoft EML Converter starts at $29 for a Personal license that covers 2 machines for 1 year. The Technical license costs $49 and is a perpetual license for 100 machines, while the Enterprise license costs $99 for unlimited machines. The Personal saving options include PST, EML, MSG, EMLX, PDF, MBOX, MHT, HTML, XPS, TXT, DOC, DOCX, RTF and CSV.
- The 1-year limit on the Personal license is the detail to note.
- After that year, the Personal license does not carry the same standing as the perpetual Technical license.
- CubexSoft offers a 30-day money back guarantee and says to try the demo version before buying.
- Choose CubexSoft if you want the lowest entry price for EML files.
Pros
- Lowest starting price in this list at $29
- Personal license covers 2 machines
- Technical license at $49 adds a perpetual license for 100 machines
Cons
- Personal license lasts only 1 year
- direct cloud export options are limited to the higher licenses
BitRecover EML Converter Wizard
Best for: Batch EML conversion with 38 saving choices
BitRecover EML Converter Wizard converts EML files in bulk and keeps attachments, metadata and folder structure during the process. The vendor says it offers 38 saving choices, including file formats and email platforms, and that it works with EML files from Thunderbird, Windows Live Mail, eM Client, Zimbra and other sources. The tool runs without an email client installed, which helps when the source mail program is gone or was never installed on the current computer.
- The vendor page lists the price as 29 USD and offers 24 by 7 support by live chat and Zoom.
- Choose BitRecover if you want a $29 EML tool with a wide set of output choices.
Pros
- Price of $29 matches the lowest in this list
- offers 38 saving choices
- works without an email client installed
Cons
- The vendor page lists a single $29 price without a full license table on that page
- large batches need a valid license for unlimited conversion
ZOOK MSG to EML Converter
Best for: MSG to EML conversion without Outlook
ZOOK MSG to EML Converter is a focused tool for one job: turning Outlook MSG files into EML files with attachments. It supports EML-based mail programs such as Thunderbird, Windows Live Mail, Windows Mail, Outlook Express, eM Client and DreamMail. It keeps the folder structure, preserves email formatting and metadata, and offers batch conversion.
- The Personal license costs $49 and covers 2 machines for a single location, while the Corporate license costs $149 and covers several machines across
- The demo exports only 25 items per folder, so test it on a small folder first.
- Choose ZOOK if your only need is MSG to EML and you do not want Outlook installed for the move.
Pros
- Converts MSG to EML without Outlook
- Personal license covers 2 machines
- keeps folder hierarchy and email formatting
Cons
- Covers one conversion direction only, MSG to EML
- the demo exports only 25 items per folder
Aryson MBOX Migrator
Best for: MBOX to PST and cloud mailbox migration
Aryson MBOX Migrator converts MBOX files into PST, MBOX, EML, MSG, PDF and other supported formats. All four license editions support batch conversion, so you can add and process multiple MBOX files instead of converting each file on its own. The Home license is for basic MBOX conversion, supports up to 2 systems, and lasts 1 year.
- The split between conversion and migration is the key detail.
- Direct import to Microsoft 365, Google Workspace, Gmail, IMAP and Outlook.com is available with the Administrator, Technician and Enterprise licenses,
- Choose Aryson if you need MBOX to PST conversion now and may need cloud migration later.
Pros
- Converts MBOX to PST, EML, MSG and PDF
- Home license covers 2 systems
- higher licenses add direct import to Microsoft 365, Gmail and Google Workspace
Cons
- Home license lasts only 1 year and is limited to conversion features
- direct migration to Microsoft 365 and Gmail needs an Administrator, Technician or Enterprise license
Stellar Converter for EDB
Best for: Exchange EDB to PST for IT teams
Stellar Converter for EDB is built for Exchange work rather than single-file conversion. The Corporate license costs $299 per year, down from $399 on the vendor page, and covers 50 mailboxes with a 1-year license. The Technician license costs $399 per year for 500 mailboxes, and the Toolkit costs $699 per year for unlimited mailboxes.
- The annual billing is the main difference from the rest of this list.
- Most tools here charge once, while Stellar charges each year, so a three-year need costs $897 at the Corporate level before any price change.
- The free trial is for scanning and preview, and saving converted data needs a full license.
- Choose Stellar if you manage Exchange databases and need 50 mailboxes covered.
Pros
- Converts online and offline EDB files to PST, Live Exchange or Office 365
- Corporate license covers 50 mailboxes
- supports parallel processing
Cons
- Costs $299 per year, so it repeats each year unlike the one-time tools here
- the Technician license at $399 per year is needed for 500 mailboxes
MacSonik EML Converter Tool
Best for: EML conversion on a Mac
MacSonik EML Converter Tool is the Mac option in this list. It converts EML files to PST, MBOX, EMLX, MSG, PDF, GIF, JPG, TIFF, HTML, MHTML, PNG, DOC, DOCM, DOCX and JSON on a Mac, and it can import EML files to Gmail, Yahoo Mail, Zoho Mail, Live Exchange, iCloud and Amazon Workmail. The tool has no maximum limit for the EML file size you add, and it can split a large PST result by a size in MB that you define.
- It also removes duplicate emails based on mail, body, from and to fields, and it shows a preview of emails in a tree structure before conversion.
- The demo converts only 50 emails per folder.
Pros
- Built for macOS with Apple Silicon support
- converts EML to more than 20 formats and mail clients
- splits large PST output by size
Cons
- Mac only, so Windows users need a different tool
- the demo converts only 50 emails per folder
MailsDaddy OST to PST Converter
Best for: OST recovery and conversion for 2 PCs
MailsDaddy OST to PST Converter repairs corrupt OST file data and converts OST files to PST without requiring Microsoft Outlook or an active Exchange Server. It also exports OST to EML, MSG, MBOX, PDF, HTML, RTF and Live Exchange Server, and it works with Microsoft Outlook 2024, 2021, 2019, 2016, 2013, 2010 and Office 365. The lifetime Personal license is a clear contrast with the 1-year Personal and Home licenses from CubexSoft and Aryson.
- MailsDaddy also recovers deleted emails with original read and unread status, keeps the folder hierarchy, and generates a conversion log report after
- The demo exports the first 20 items per folder.
Pros
- Personal license is a lifetime license for 2 PCs at $49
- repairs corrupt OST files and recovers deleted emails
- splits large PST output by size
Cons
- Demo exports only the first 20 items per folder
- direct Live Exchange Server export needs a Business or Enterprise license
How we chose
We included only tools with an official vendor page that names the source formats, the output formats and a starting price, and we checked those prices on 2026-11-12. We did not test any tool hands-on. We ranked the list by fit for a stated job, such as EML conversion, MSG to EML, MBOX migration, Mac use, OST recovery or Exchange EDB work, rather than by a single price. One unique fact shaped the ranking: most tools here charge once, while Stellar charges $299 per year for 50 mailboxes, and CubexSoft Personal and Aryson Home last only 1 year, while MailsDaddy Personal is a lifetime license. That billing difference changes the three-year cost more than the starting price alone suggests.
Pick by budget and job
| Budget or job | Pick | Price to plan for |
|---|---|---|
| Lowest entry price for EML | CubexSoft EML Converter or BitRecover EML Converter Wizard | $29 one-time payment |
| MSG to EML only | ZOOK MSG to EML Converter | $49 one-time payment |
| MBOX to PST with cloud migration later | Aryson MBOX Migrator | $49 one-time payment for Home, higher license for cloud import |
| Mac only | MacSonik EML Converter Tool | $49 one-time payment |
| OST recovery with a lifetime license | MailsDaddy OST to PST Converter | $49 one-time payment |
| Exchange EDB for 50 mailboxes | Stellar Converter for EDB Corporate | $299 per year |
| Every source format in one tool | SysTools Mail Converter | $399 one-time payment |
Frequently asked questions
What is the best email converter software for most people?
CubexSoft EML Converter is the best default pick for most people at $29 for a one-time Personal license, with BitRecover EML Converter Wizard as a close second at the same $29 starting price. Both cover EML conversion at the lowest entry price in this list. Choose SysTools Mail Converter at $399 only if you also need OST, EDB and MBOX conversion in one tool.
How much does email converter software cost?
Prices in this list run from $29 to $399 for a one-time charge, with Stellar Converter for EDB as the annual exception at $299 per year for its Corporate license. CubexSoft and BitRecover start at $29, ZOOK, Aryson, MacSonik and MailsDaddy start at $49, and SysTools starts at $399. Check the license length too, because some $29 and $49 licenses last only 1 year.
Which is best for EML to PST on a Mac?
MacSonik EML Converter Tool is best for EML to PST on a Mac at $49 for a one-time charge. It is built for macOS, supports Apple Silicon M1, M2, M3, M4 and newer chips, and it can split a large PST result by size. Its demo converts only 50 emails per folder, so test it on a small folder before you buy the full version.
Which is best for OST to PST conversion?
MailsDaddy OST to PST Converter is best for OST to PST conversion at $49 for a Personal lifetime license for 2 PCs. It repairs corrupt OST files, recovers deleted emails, and converts OST to PST without Outlook or an active Exchange Server. Its demo exports only the first 20 items per folder, and direct Live Exchange Server export needs a Business license at $149 or an Enterprise license at $299.
Can I convert MSG to EML without Outlook?
Yes, ZOOK MSG to EML Converter converts MSG to EML without Outlook at $49 for a Personal license covering 2 machines. It keeps folder hierarchy and email formatting, supports batch conversion, and works with EML-based mail programs such as Thunderbird and Windows Live Mail. The demo exports only 25 items per folder.
Do I need a higher license for cloud migration?
Yes, in some cases. Aryson Home at $49 covers conversion only, while direct import to Microsoft 365, Gmail and Google Workspace needs an Administrator, Technician or Enterprise license. MailsDaddy also limits direct Live Exchange Server export to Business and Enterprise licenses. Check the license table before you buy if cloud import is part of your plan.
Sources
- https://www.systoolsgroup.com/mail-converter.html
- https://www.cubexsoft.com/eml/purchase.html
- https://www.bitrecover.com/eml-converter/
- https://www.zooksoftware.com/msg-to-eml/
- https://www.arysontechnologies.com/mbox-migrator/buy-now.php
- https://www.stellarservertools.com/buy-edb-pst-converter.php
- https://www.macsonik.com/eml-converter/
- https://www.mailsdaddy.com/ost-to-pst-converter/
Prices and features were read on each company’s own website in November 2026. They change often, so confirm the current offer on the official site before you sign up or buy.