Compare the Top Free Email Converter Software as of November 2025

What is Free Email Converter Software?

Email converter software allows users to easily convert emails from one format to another. It is useful for consolidating various email clients into a universal format or simply transferring old emails between different programs. Email converter software is usually user friendly and offers an intuitive interface, making it simple to select and convert email files. Many versions of the software are available both for purchase and free online download. Compare and read user reviews of the best Free Email Converter software currently available using the table below. This list is updated regularly.

  • 1
    Aid4Mail

    Aid4Mail

    Fookes Software Ltd

    Aid4Mail is a fast, reliable, and highly accurate tool to collect, recover, search, and convert emails. It supports most mailbox file formats (e.g. PST, OST, OLM, mbox), IMAP accounts (e.g. Yahoo! Mail, AOL) and popular mail service providers (e.g. Microsoft 365, Exchange, Gmail). Aid4Mail can recover double-deleted messages and corrupted emails, and extract MIME data from certain types of unknown file formats through file carving. Aid4Mail provides a large array of tools to search and filter out unwanted emails during conversion. Save time by using native pre-acquisition filters to download a subset of your mail from Exchange, Office 365, Gmail and other webmail services. Use Aid4Mail’s integrated search engine to cull-down your email collection. Its search operators are very similar to Gmail and Office 365. Aid4Mail is used by Fortune 500 companies, government agencies and legal professionals around the world. It is made in Switzerland by perfectionists.
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    Starting Price: $59.95
  • 2
    Regain

    Regain

    Regain Software

    Enjoy seamless conversion with proficient OST to PST Converter tool to retrieve inaccessible and corrupt OST files. It helps corrupt items like email, tasks, contacts, calendars etc. Ever since the start, the sole motive of Regain Software has been to offer a wide range of complete recovery and repair solutions for emails so as to better help companies, data technicians, and even the general audience to recover lost contacts, emails, and many other things. When your OST files are severely corrupted, you can recover and save into Outlook PST/EML/MSG/HTML format using Regain OST Recovery Tool. If your PST Tool is corrupted and you are unable to access the data stored, use the Regain PST recovery tool to recover and convert multiple files into different formats namely EML/MSG/HTML/MBOX/RTF. removing duplicate data is a matter of seconds as this tool enables you to remove duplicate content including duplicate emails, attachments, calendars, contacts, notes, etc. from one or more files.
    Starting Price: $49.00/one-time/user
  • 3
    Softaken EML to PST Converter
    Softaken EML to PST Converter is the best and most professional tool to convert EML files to Outlook PST file format. The software can migrate EML and EMLX files to Outlook PST file format. Technical users and non-technical users can also convert EML files to Outlook PST file format. There is no need for any additional software to convert EML files to Outlook PST file format. The app provides a complete preview of the EML files before the conversion process begins. The computer utility can export EML and EMLX files to Outlook PST file format. There are no possibilities of data loss when the conversion process begins. No need for any technical experience to work with this app. The software also preserves the EML meta-data properties when the conversion process begins. There are batch and single EML file conversions available that help users select EML file conversion. This professional utility provides conversion in 2 modes file or folder mode. Get a Free demo version of this software.
    Starting Price: $29
  • 4
    Total Mail Converter Pro
    Total Mail Converter Pro converts MSG and EML to PDF, DOC, TXT, HTML, HTMLX, TIFF, RTF documents and images (TIFF, JPEG). While other email converters only extract and save attached files in their original formats, the Pro version is unique - it converts attachments as well. For example, if you have an email with a doc attachment, Total Mail Converter Pro can convert both the message and the attachment to PDF as part of a single operation. Total Mail Converter Pro is built around a powerful engine and was designed to help save hours if not days worth of time. It easily processes hundreds of thousands of MSG/EML files through its batch feature, and puts you in the driver's seat through a robust set of customization options. If you need a server version with ActiveX try Total Mail Converter ProX (this functionality can be easily integrated with your own app).
    Starting Price: $24 one-time payment
  • 5
    Stellar Converter for OST

    Stellar Converter for OST

    Stellar Data Recovery Inc.

    Stellar Converter for OST is an advanced software for converting the inaccessible OST file into PST file and extract the mailbox data with 100% precision. The tool also allows the user to Split or Compact the output PST file with options to export the PST file directly to Live Exchange or Office 365. In several scenarios, you may find this tool of great help. For example, In case there is need to Extract Mailbox Data from OST File especially when you delete a user mailbox from Exchange and there is no backup, the only way to access the mailbox data is through the OST file. However, you cannot recreate or rebuild OST file if the Exchange user account is deleted from Active Directory. Stellar OST converter tool converts the inaccessible OST file and extracts the mailbox items in a PST file. Likewise, when there is need to migrate deleted mailboxes without backup.
    Starting Price: $79
  • 6
    Xtraxtor Email Converter
    A reliable and secure solution to export emails from mailbox data files into different file formats. This Email Converter allows users to convert email files into PST, MBOX, PDF, HTML, CSV, EML, ICS, vCard, and TEXT in a single attempt. This is a professional tool that allows you to convert emails from the most popular email clients and servers into multiple file formats. With a simple user interface and advanced filters, the user can export their emails to the desired format without losing important data. Without worrying about data file size and quantity, Xtraxtor Email Converter helps to easy and accurate conversion. The email conversion tool allows you to export and transfer emails to different file formats. It depends on the user's needs, and which file export option they choose. It offers a variety of saving options like PST, MBOX, OST, EML, MSG, HTML, CSV, PDF, TEXT, vCard, and ICS. You can choose any file format to save your mailbox data in the proper format.
    Starting Price: $49 one-time payment
  • 7
    PCDOTS Email Converter
    PCDOTS provides the Best Email Converter Tool.It is specialized software that allows you to convert emails from the most popular desktop email services. Using this advance tool, emails can be converted as standard email file types along with all email attachments. So, are you one of those who require email conversion but are unable to find the appropriate solution? If yes, do not waste your time now. Simply download the best mail converter. Email Converter software is compatible with all widely used email application data files. Our experts have decoded nearly all email file types and their associated file structures. PCDOTS Email Conversion Freeware is an advanced solution for the migration of mails to different file formats.
    Starting Price: $49 per year
  • 8
    Email Studio .NET
    Email Studio is an enterprise grade email and storage viewer, parser and converter. Email Studio fully supports MIME and MAPI plus generic Windows, MacOS and Linux formats. Your all-in-one (20+) multi format email and storage processor with embedded RBL, DKIM and Tracer in addition to the unmatched enterprise storage tools. ► Calendar Converter/Merger/Splitter ► Contact Converter/Merger/Splitter ► Remote Server Certificate Validator ► Email Converter/Downloader/Validator ► Email/Storage Based File Format Detector ► Send Custom POP3/IMAP4/SMTP/DNS Commands ► Storage Converter/Extractor/Merger/Splitter/Builder/Downloader
    Starting Price: $0
  • 9
    Email Converter .NET
    Email Converter is a powerful tool for converting and extracting different email, calendar, contact and storage files from popular email clients. Email Converter fully supports MIME and MAPI plus generic Windows, MacOS and Linux formats. ► Calendar and Contact Converter/Splitter ► Email Converter and Storage Extractor ► Storage Extractor ► EML/EMLTPL/MHT/MHTML/HTML/EMLX/MSG/OFT ► PST/OST/OLM/MBOX ► VCF/VCS/ICS ► MCDF MSO ► TNEF DAT
    Starting Price: $0
  • 10
    SoftTweak OST Converter
    No doubt that the OST migration tool is ultimate solution and its graphical user interface is effective for all users (technical or non-technical). It works in only three simple steps yet it is capable to convert multiple PST files into other file format at once. (To select multiple files, press Ctrl key + Click on the files) OST Converter successfully completes al migration process and provides effective resultant files in few moments. Basically, it converts OST file in multiple file formats. The multi-talented OST to PST converter tool is effective solution and has capability to export large-size OST files into PST for Outlook at once. During the complete migration of OST in PST, it also displays complete progress status of the migration which shows the number of files converted during the process. Therefore, users can simply check the status of the software working. Moreover, the OST Converter software works smoothly and also maintained all mails and other data properties.
    Starting Price: $69 one-time payment
  • 11
    SoftSpire Zimbra Converter
    Zimbra Converter is a comprehensive tool, designed to convert Zimbra Mailboxes to multiple applications, with full precision. A complete migration utility, Zimbra Mail Converter moves all the emails, contacts, notes, tasks, calendars of multiple user profiles into format, to be further imported into various applications. The software creates individual file for every mailbox, allowing easy management of all user accounts. Tested with around 20000+ files, the software offers smooth Zimbra mailbox conversion, thereby eliminating any kind of file size limitation and promoting large scale migration. A Windows based tool, Zimbra Converter works on Windows 10 and all its earlier editions. While carrying out the Zimbra Mailbox conversion, software retains the same Zimbra folder structure thoroughly in MS Outlook, without any change or damage.
    Starting Price: $299 one-time payment
  • 12
    vMail OST to PST Converter
    vMail OST to PST Converter Software is an email conversion and recovery tool for Microsoft Office Outlook offline saved data. This tool recovers email, contacts, calendar, tasks, notes, etc from corrupt, damaged and encrypted OST file and export all data to a new healthy PST file. This OST Converter software can converts OST to more other formats like MSG, MBOX, EML, EMLX, vCard, vCal, HTML, PDF, RTF, etc.
    Starting Price: 39 USD
  • 13
    QuickMigrations for OST to PST

    QuickMigrations for OST to PST

    QuickMigrations Software

    Get the best OST to PST converter software to migrate corrupted and orphaned OST file data into Outlook PST format. The software is developed with advanced algorithms to keep the user’s OST data safe and secure during the conversion process. The OST recovery application exports the complete OST database like emails, calendars, contact, notes, and journals, etc. into MS Outlook PST format. By using this single click migration solution anyone can export Outlook OST data file mailbox into PST format. Some advanced features of the OST to PST Converter: It supports bulk export of OST format to PST format. Perform a quick migration process for Outlook data file to Outlook PST. The OST to PST migration is possible in one click. Compatible with entire versions of MS Outlook and Windows OS. Supports Windows 10, 8, 7, XP and all earlier versions.
    Starting Price: $49
  • 14
    Cigati OST to PST Converter
    Cigati OST to PST Converter utility is one of the most advanced and powerful utilities that can convert Offline OST files to PST, MBOX, EML & MSG formats successfully. It is one of the fastest and the safest OST conversions into Outlook PST files. The utility can transfer your attachments like emails, calendars, contacts, tasks, journals, notes, etc. from your OST files into the PST file format. The utility is embedded with the advanced feature of data integrity and auto-search option. Data inside your files and the folders remain the same and software helps in maintaining the hierarchy of the items present in your Office OST files. Cigati OST Converter is also able to convert the files that are in good condition, it can also convert the OST files that are corrupted after recovering them with the utmost accuracy. With this utility, the user can easily convert the Offline OST files into the PST and other file formats.
    Starting Price: $49 per user
  • 15
    CloudMigration

    CloudMigration

    CloudMigration

    Transform how you migrate, protect, and manage data across diverse cloud environments. We have more than 15 million clients that are fully satisfied with our products and services. Most of them are our regular customers who say that they prefer CloudMigration software over others. CloudMigration has a variety of migration software. So, whether you want to Migrate Gmail to Yahoo or Zoho mail to iCloud, CloudMigration is the one-stop solution. Our software development team has professionals with years of experience. They develop high-grade applications that are fast, effective, reliable, and work smoothly in your Windows or Mac system. The leading IT brands reviewed our products among the best solutions for Cloud migration. We have partnerships with Dudley, Cisco, Capgemini, Bupa, and many other top companies.
  • 16
    NSF Converter Tool

    NSF Converter Tool

    Data Recovery Freeware

    NSF Converter Tool is the best professional tool that helps to convert NSF files into PDF, EML, EMLX, MBOX, TXT, HTML, MHTML, etc. Its smart feature offers to convert single and multiple NSF files at the same time without any limitations. It maintains the data in its original form without damaging it. It helps to save the contacts of IBM notes into CSV, PST, and VCF files. It migrates the NSF file to AOL, Gmail, Yahoo, Hotmail, IMAP, etc. It automatically removes the duplicate NSF file and runs with all the versions of the Windows operating system. It also helps to give a preview of the NSF file before saving it. A Smart data range filter offers its user to exclude unnecessary email content. The demo version of this tool allows users to convert up to 50 email items for free.
    Starting Price: $99
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