List of the Top 25 Email Converter Software for Windows in 2025

MailsSoftware OST converter is a reliable solution for repairing damaged OST files and allows users to export Outlook OST files into formats such as PST, EML, and MBOX. Outlook stands out as a top-tier email client for managing emails, calendars, tasks, and contacts in both OST and PST formats. An OST file is generated when an email account is set up with an MS Exchange server and the cached exchange mode is enabled, effectively storing all mailbox information in an organized manner. However, issues may arise that render the OST file inaccessible or unopenable, often due to factors like virus attacks, hardware failures, or changes in MAPI addresses, as well as Exchange server malfunctions. Unfortunately, when such problems occur, users are unable to access their mailbox data within the OST file. To restore readability to these OST files, the utilization of third-party software becomes essential. For those seeking to recover data from corrupted Outlook OST files comprehensively, downloading the MailsSoftware OST tool will provide a robust solution. This tool not only aids in recovery but also ensures that users can regain their valuable mailbox data efficiently.

Aid4Mail, an advanced email processing solution from Switzerland, offers three distinct editions tailored to various needs. 1. The Converter edition efficiently collects and converts emails with precision and speed, accommodating all major email services such as Office 365, Gmail, and Yahoo! Mail, as well as various mailbox file formats like PST, OST, OLM, and mbox. This edition is highly regarded for its effectiveness in preparing emails for archival, eDiscovery, and forensic applications. 2. The Investigator edition enhances functionality with robust search capabilities that utilize Gmail and Microsoft 365 syntax, along with native pre-acquisition filters and Python scripting. Its forensic tools empower users to retrieve deleted or hidden emails and to handle damaged or unfamiliar email formats. 3. The Enterprise edition extends its features to include support for Google Vault, Mimecast, and Proofpoint exports, facilitating seamless migration of corporate emails to live accounts across platforms like IMAP, Microsoft 365, and Gmail. Additionally, this edition allows for smooth integration of its command-line interface with custom tools and offers flexible licensing arrangements, including installation on both servers and portable flash drives. With a user base that includes Fortune 500 companies, government entities, and legal experts globally, Aid4Mail has established itself as a trusted resource in the email processing field. Its adaptability and comprehensive features make it an essential tool for organizations dealing with large volumes of email data.

Discover the all-encompassing solutions necessary to restore, repair, transform, access, export, and protect your database effectively. Our award-winning offerings are crafted to recover lost data, fix corrupted files, and streamline email conversions seamlessly. BitRecover has emerged as a reputable choice among IT professionals and individual users when it comes to effective data management and recovery solutions. True to our name, BitRecover is committed to retrieving every single bit of lost information for our clients. As a sub-brand of RecoveryTools, we present a comprehensive range of solutions specifically designed to meet diverse user needs, which includes Windows data recovery, virtual drive recovery, VMFS partition recovery, and storage media recovery. Furthermore, our extensive suite of products includes applications for email conversion and password recovery, thereby enhancing the range of tools we offer. Trust us to tackle all your data recovery and management challenges with expertise and reliability, ensuring that you can focus on what truly matters.

The Perfect OST to PST Converter software stands out as an exceptional solution for offline recovery and conversion of OST files. Its advanced OST recovery technology guarantees a flawless conversion from OST to PST. This software is not only reliable but also instills confidence in its users. It efficiently retrieves email addresses, contacts, calendars, and attachments from OST mailboxes, converting them to PST format in under a minute. Additionally, this tool allows for the rapid conversion of multiple OST files to PST format effortlessly. It is compatible with all versions of OST files, making it a versatile choice for users. With its user-friendly interface, anyone can navigate the conversion process with ease.

Explore a highly-rated converter designed to proficiently change offline Outlook data files (.ost) into PST format, allowing for batch exports that streamline the entire process. This software not only simplifies the conversion of OST files to PST but also ensures that all integral components—including emails, contacts, calendars, tasks, notes, and both custom and standard folders—are preserved during the transition. After the conversion is completed, users can easily import their data into various Outlook versions such as 2019, 2016, 2013, 2010, and 2007 without facing any difficulties. The tool provides a convenient method for exporting multiple OST files to PST format while removing any potential complications. A key feature of the ZOOK OST to PST Converter is its independence from Microsoft Outlook, meaning there is no need for the software to be installed on your device. It efficiently performs the conversion process without relying on Outlook, thereby allowing users to import their converted files with ease. This dependable OST to PST conversion program guarantees a thorough export of all data items, ensuring no information is lost throughout the procedure, making it an excellent option for those seeking a trustworthy conversion tool. With its intuitive interface and powerful capabilities, ZOOK OST to PST Converter emerges as a vital resource for effectively managing Outlook data, catering to both novice and experienced users alike. The software's reliability and efficiency make it a go-to choice for anyone needing to convert their Outlook data seamlessly.

The OST-to-PST Converter by Kernel is a robust software designed for the conversion and recovery of damaged or corrupted OST files from Exchange mailboxes. It facilitates the migration of OST files into PST format effectively. Featuring an advanced algorithm, the software meticulously scans corrupted OST files to retrieve essential data, including emails, attachments, contacts, calendars, tasks, notes, and journals. Additionally, it provides a variety of saving formats such as MSG, EML, HTML, RTF, Office 365, and Live Exchange Server. Users can also benefit from multiple preview formats, including Hex, MIME, and HTML, which allow for a comprehensive review of data items prior to saving. Furthermore, the software includes options to split or compress PST files, making it easier to manage disk space efficiently. Ultimately, Kernel’s innovative solution ensures that users can recover and convert their OST files with ease and accuracy.

Transform your file conversion process seamlessly with the innovative OST to PST Converter tool, meticulously crafted to revive inaccessible and corrupted OST files. This powerful solution efficiently retrieves damaged components, including emails, tasks, contacts, and calendar entries. Since its launch, Regain Software has focused on offering a broad range of recovery and repair solutions tailored for email data, supporting businesses, IT professionals, and casual users in reclaiming lost emails and contacts. When faced with severely damaged OST files, the Regain OST Recovery Tool enables users to recover and export their data into multiple formats such as Outlook PST, EML, MSG, and HTML. Moreover, if your PST file has become compromised and you can't access your stored data, the Regain PST Recovery Tool is available to assist in recovering and converting numerous files into various formats, including EML, MSG, HTML, MBOX, and RTF. In addition, the tool simplifies the removal of duplicate data, allowing users to efficiently eliminate redundant items, such as duplicate emails, attachments, calendars, contacts, and notes, across single or multiple files. By constantly refining its offerings, Regain Software strives to improve the data recovery process for users, enhancing their workflows and overall productivity. With these powerful tools at your disposal, you'll find it easier than ever to manage and recover your critical email data.

The completely reliable OST to PST converter is designed to retrieve damaged Outlook mailboxes, which may include various elements like emails, contacts, journals, tasks, drafts, and attachments. This versatile tool can convert both individual and bulk mailboxes, making it an excellent resource for Outlook users dealing with OST corruption issues. Additionally, the software provides a preview function, allowing users to choose specific files they want to transform from OST to PST or other formats such as MSG, HTML, and EMLX. Furthermore, it accommodates cloud services like Office365 and Live Exchange Server, ensuring users have access to their data in the future. This functionality is particularly beneficial for users looking to maintain the integrity and accessibility of their important information.

Softaken EML to PST Converter stands out as an exceptional tool designed specifically for transforming EML files into the Outlook PST format. This versatile software supports the conversion of both EMLX and EML files into Outlook's PST format seamlessly. It caters to users of all skill levels, ensuring that both technical and non-technical individuals can easily convert their EML files. Importantly, no additional software is needed to perform this conversion, making it a convenient choice. The application allows users to preview the EML files in detail prior to initiating the conversion process, enhancing user confidence. This computer utility efficiently exports both EML and EMLX files into the Outlook PST format. The conversion is conducted in a safe and secure manner, further emphasizing its reliability. Users do not need any specialized technical knowledge to operate the software, which is a significant advantage. Throughout the conversion, the software ensures that all EML metadata is retained, preserving the integrity of the original files. Users have the flexibility to choose between converting individual EML files or processing multiple files at once through batch conversions. Additionally, the software offers two operational modes: file mode and folder mode, providing further customization during the conversion process. For those interested, a free demo version of the software is available for download, allowing potential users to explore its features before committing.

We are living in an era where life has become considerably more straightforward, primarily due to advancements in technology that allow us to venture into realms we once considered unattainable. In former times, it was common practice to hire additional technical assistance, but today, numerous tasks can be efficiently managed through software solutions. For instance, when it comes to file conversion, there is no longer a need for extra help, as a conversion program can perform the necessary tasks with just a few clicks. Take the Softaken OST to PST Converter, for example; it facilitates the effortless transition of OST files to PST format. Furthermore, this tool is versatile enough to convert OST files into a range of other formats as well. Before we explore the primary features of this software, it is essential to appreciate the reasons driving the need for file conversion. Why, then, is converting OST files to PST format so crucial? Both OST and PST files are designed to work with MS Outlook on Windows, yet users face the challenge of not being able to open OST files directly through PST files or the other way around. This limitation set by MS Outlook necessitates the conversion process, as it prevents seamless access to data across these two formats. Recognizing this constraint underscores the value of employing efficient conversion tools to bridge the gap between these file types, ultimately enhancing user experience and data management.

Total Mail Converter Pro is equipped to convert MSG and EML files into a range of formats, including PDF, DOC, TXT, HTML, HTMLX, RTF, as well as image formats like TIFF and JPEG. This software distinguishes itself from many other email converters by not only saving attachments in their original formats but also converting those attachments during the process. For example, when processing an email with a document attachment, Total Mail Converter Pro can efficiently convert both the email and document into a single PDF file simultaneously. Designed with a powerful engine, this program significantly minimizes the time required for file conversions, potentially saving users considerable hours or even days. It is adept at managing large batches of MSG and EML files, thanks to its batch processing features, and provides a wide range of customization options to cater to different user preferences. Furthermore, for users needing server capabilities with ActiveX support, Total Mail Converter ProX offers seamless integration into current applications. This extensive functionality not only boosts productivity but also provides the flexibility necessary for various conversion tasks. Ultimately, Total Mail Converter Pro proves to be a versatile tool that meets the diverse needs of its users effectively.

The Magus OST to PST conversion tool provides an innovative approach for converting OST files into PST format at budget-friendly prices. Tailored for those who need to convert only a few OST files, this tool offers a cost-effective solution without compromising on quality. It includes all the necessary features for comprehensive data migration from OST to PST format. Should you encounter issues with your OST file, this converter can efficiently help resolve those problems. It has the capability to handle corrupted OST files, transforming them into healthy PST files that are readily accessible in MS Outlook or Office 365. Beyond just converting to PST, this adaptable tool also allows users to export OST files into multiple other formats, such as MBOX, EML, and MSG. For example, if you plan to use your OST file with Thunderbird, you can easily save it in the MBOX format. Similarly, you can select EML or MSG formats according to your individual needs. With its intuitive interface and powerful features, it guarantees a smooth transition for users aiming to migrate their OST files. Moreover, the tool is designed to cater to both novice and experienced users, making it an excellent choice for anyone seeking a reliable conversion solution.

SysInfo's OST-to-PST Converter Software facilitates the rapid and effective conversion of OST files into PST format. This reliable utility seamlessly transforms OST files for use in various file formats and email clients, ensuring a smooth transition. Additionally, it supports the export of essential items such as emails, contacts, journals, tasks, and to-dos. Users can also transfer all mail attributes, encompassing email headers, cc and bcc details, subject lines, and dates. The software is compatible with Windows 11 and other prominent Windows versions, making it versatile for different systems. Exchange OST files can easily be converted into Outlook PST and MSG formats. Furthermore, users can take advantage of features like the Date Range Filter and filters specifically for mail and tasks. With an intuitive graphical user interface, this tool is accessible to both experienced tech users and novices alike. Notably, the demo version permits the import of up to 50 emails from each folder, allowing users to test its functionality before committing to a purchase. This feature enhances the overall user experience by providing a risk-free introduction to the software.

Stellar Converter for OST is a sophisticated tool designed to transform inaccessible OST files into PST formats while ensuring flawless extraction of mailbox data. It offers features that allow users to split or compact the resulting PST file and facilitates direct exports to Live Exchange or Office 365, enhancing convenience and efficiency. This software proves invaluable in various scenarios, particularly when mailbox data needs to be retrieved from OST files after an Exchange user account has been removed. In cases where an Exchange user account has been deleted from Active Directory, it's impossible to recreate the OST files, making this converter essential. By converting inaccessible OST files, the Stellar tool helps users extract crucial mailbox items into a PST format seamlessly. Moreover, it becomes especially beneficial for migrating mailboxes that were deleted without any prior backup, ensuring that critical data is not lost. Ultimately, Stellar Converter for OST provides a reliable solution for effective data recovery and migration.

The ATS NSF Converter is a specialized application designed to facilitate the import and recovery of data from IBM Lotus Notes NSF files directly into Outlook PST files, ensuring a quick and secure process. It simplifies the transition from Lotus Notes to Outlook PST files as well as to Office365 and Live Exchange Server. Additionally, this powerful tool enables users to convert several NSF files simultaneously. Compatibility is broad, supporting all versions of Lotus Notes from 6.5 up to 9.0.1, which makes it highly versatile. The ATS Lotus Converter Software operates in a secure manner, providing users with peace of mind during the conversion process. Users can also utilize the software's preview feature to view converted mailboxes in HTML and Text formats before finalizing the conversion. Offering a variety of advantages, the software allows for saving in multiple formats, including Office365, Live Exchange Server, PST, and EMLX, while also supporting MBOX, vCard, and MSG file types, making it a comprehensive solution for data migration needs. Overall, this tool streamlines the conversion process and enhances productivity for users transitioning between email platforms.

The SysVita OLM to PST Converter Software is a multifaceted and efficient tool specifically crafted to simplify the recovery of lost data from Mac Outlook OLM files, while also offering an advanced conversion feature that allows users to export OLM files to PST, Gmail, and Office 365. This migration software adeptly transfers all essential email elements, such as Message, From, To, Subject, Date, and attachments, from Mac Outlook to Windows Outlook PST, and additionally supports various other formats like EML, EMLX, MBOX, PDF, HTML, RTF, and vCard for contacts. Users can easily migrate their Mac OLM files to numerous platforms, including Office 365, Live Exchange Server, Gmail, Yahoo, and AOL accounts, ensuring comprehensive accessibility. Moreover, this tool not only facilitates straightforward conversion but also offers a solid solution for repairing damaged Mac Outlook OLM files, allowing users to recover vital data with ease. In conclusion, this software proves to be an excellent choice for anyone looking to efficiently recover data and convert files across different formats, making it a valuable asset for both personal and professional users alike.

Conholdate.Total serves as the all-encompassing toolkit for every .NET API provided by Aspose and GroupDocs, empowering developers to execute an extensive range of document processing functions within their .NET applications. This comprehensive package offers integrated solutions tailored for various document management systems, enabling users to create, modify, print, view, sign, compare, automate, and convert a diverse array of widely-used document formats. With Conholdate.NET, you can seamlessly handle numerous file types, making it simple to open, edit, and convert files with ease. Currently, Conholdate.Total.NET is compatible with an impressive array of file formats, which includes Microsoft Word documents, Excel spreadsheets, PowerPoint presentations, Adobe PDF files, Outlook items, Microsoft Project files, and over 100 additional formats, making it an invaluable resource for developers. Its versatility ensures that users have the tools necessary to manage their document workflows effectively.

The MailsSoftware MBOX converter is a dependable tool designed for seamless conversion of MBOX files into PST format. If you are looking to transfer MBOX files or migrate data from Thunderbird to MS Outlook, this tool is an excellent choice. It efficiently handles conversions from MBOX files to PST, as well as from Thunderbird to PST. Additionally, it supports conversions from Apple Mail and Postbox to the PST format. Before initiating the conversion process, the software provides a comprehensive preview of the entire MBOX file, ensuring users can verify their data beforehand. This feature enhances user confidence in the conversion process.

We provide reliable solutions tailored for businesses, corporations, and small to medium enterprises to facilitate the export, backup, and conversion of emails on the Windows platform. In this context, let's explore some of the leading software available for managing email migration, cloud backup and migration, data recovery, as well as PDF management and migration specifically for Windows. Additionally, we also cater to Mac users with exceptional offerings in Email Conversion, an Email Migration Splitter Tool, and Cloud Backup services. Our proficiency in the design, development, and delivery of a diverse array of applications sets us apart in the industry. With a loyal customer base of 1,000,000, a decade of combined expertise, and round-the-clock customer support, we have become the preferred choice among users seeking quality and reliability. Our commitment to innovation ensures that we continually improve our products to meet the evolving needs of our clients.

MailsDaddy OST-to-PST Converter is a practical application designed to transform offline OST files into PST format effortlessly with a single click. It allows the conversion of OST file databases into various formats such as EML, MSG, MBOX, HTML, RTF, HTMLX, and MHTML, as well as Office 365 and Live Exchange, all while preserving the integrity of the original data. This versatile OST file converter can handle multiple OST files at once, enabling users to create either individual PST files or a combined single PST file. Additionally, it efficiently converts large OST files into smaller PST files without sacrificing accuracy. Furthermore, users are not required to have MS Outlook or Exchange Server installed or configured to initiate the OST conversion, making the process more straightforward. The software is compatible with all Windows operating systems, allowing users to import PST files from any version of Outlook, including 2019, 2016, and 2013. To help users assess its functionalities, the OST-to-PST converter software also offers a demo version, granting the ability to export the initial 20 email items from each mailbox at no cost. This feature enables potential users to evaluate the tool’s performance before committing to a purchase.

The MBOX Converter is specifically created to assist users in converting MBOX files from more than 20 distinct email applications. With this tool, individuals can seamlessly transform multiple MBOX files into various output formats, including PST, PDF, HTML, EML, MSG, EMLX, and IMAP. Its comprehensive data preview capabilities make it invaluable for forensic investigations and legal use, while the Forensic MBOX viewer allows for an in-depth examination of MBOX files, catering to the needs of digital forensics. Moreover, the software facilitates direct exports of MBOX files to popular platforms such as Office 365, Gmail, Outlook.com, and Thunderbird, ensuring that the original email formatting and folder structures remain intact after conversion. Additionally, an intuitive viewer feature enables users to inspect emails and attachments before proceeding with the conversion, enhancing efficiency. The tool provides both Hex View and Raw View options, allowing for a meticulous analysis of MBOX files, which is critical in digital investigations. Ultimately, this software streamlines the conversion process and significantly improves the user's capability to analyze and manage email data effectively while also ensuring a user-friendly experience.

The Sysessential NSF to PST Converter provides a highly reliable solution for converting data items from NSF files into the PST format with thorough testing. Users can easily and securely transform crucial components like emails, calendars, notes, tasks, and journals from Lotus Notes to Outlook files. Moreover, this tool allows for the conversion of NSF emails into multiple formats, such as MBOX, EML, EMLX, and MSG, complete with attachments. With just a few clicks, users can seamlessly perform the conversion from NSF to PST. It's essential to have Lotus Notes properly set up to ensure a smooth export of NSF emails to PST format. Interestingly, there is no need for Outlook to be installed on the computer for the NSF mailbox data to be transferred to a PST file. The application excels in exporting NSF data to PST format without any complications. Its advanced features make it both powerful and user-friendly, catering to a wide range of user needs. Additionally, the software guarantees that the original formatting and structure of the NSF file remain intact, allowing successful exports to various versions of Outlook, including 2019, 2016, 2013, and 2010. Users can count on this tool for a dependable and efficient conversion process, ensuring that all their data is preserved accurately throughout the transfer. Furthermore, the software's intuitive interface enhances user experience, making the entire procedure straightforward for both novice and experienced users alike.

The ToolsGround OST to PST Converter offers users a hassle-free solution for converting offline OST files into multiple formats such as PST, EML, MBOX, and MSG within seconds. This application can effectively read damaged OST files, marking any issues with a Red Mark during the loading stage, which aids users in efficiently transferring items from each folder. It allows for the seamless migration of all mailbox components, which include emails, contacts, notes, drafts, calendar entries, to-do lists, and even synchronization issues into a PST file for Outlook. Additionally, users benefit from a handy search tool that helps in locating OST files on any drive. Importantly, the software supports direct export of all data from OST files to cloud storage solutions like Office 365 and Gmail servers, enhancing accessibility. It is compatible with all versions of MS Outlook, including Outlook 2019, and operates smoothly on all Windows operating systems, making it a dependable choice for those looking to convert and manage their email data. In summary, ToolsGround's converter is an indispensable resource for individuals aiming to streamline their email management and ensure a smooth conversion process. With its user-friendly interface and robust functionality, it simplifies a typically complex task for users of all experience levels.

A highly effective and secure solution for exporting emails from mailbox data files into various formats is now accessible. The Email Converter empowers users to convert their email files into multiple formats simultaneously, including PST, MBOX, PDF, HTML, CSV, EML, ICS, vCard, and TEXT. This professional-grade application facilitates the conversion of emails from popular email clients and servers into a multitude of file formats. With its user-friendly interface and advanced filtering capabilities, users can effortlessly export their emails to their desired formats while safeguarding essential information from being lost. The Xtraxtor Email Converter guarantees a straightforward and precise conversion process, regardless of the number or size of the data files in question. Furthermore, this tool provides users with the flexibility to transfer and export their emails to different file formats based on their individual needs and chosen export options. Offering various saving formats such as PST, MBOX, OST, EML, MSG, HTML, CSV, PDF, TEXT, vCard, and ICS, it allows users to easily choose the appropriate file format for effective mailbox data preservation. In conclusion, this tool’s adaptability and extensive format options make it an indispensable asset for anyone aiming to manage their email data with efficiency and ease. Whether for personal use or professional tasks, the Email Converter stands out as a reliable choice for comprehensive email management.

PCDOTS presents an outstanding Email Converter Tool tailored for converting emails from prominent desktop email applications. This cutting-edge software allows users to change their emails into commonly used file formats while ensuring that all attachments are retained throughout the conversion process. If you're on the lookout for a reliable email conversion solution and have faced challenges in finding one, your quest concludes here. Don't wait any longer—download this premium mail converter today. The Email Converter software is designed to work with data files from all the leading email services, making it an adaptable option for users. Our expert team has meticulously examined and understood a wide array of email file types and their respective structures. Moreover, PCDOTS Email Conversion Freeware emerges as a refined choice for transferring emails to different file formats, making transitions smooth and hassle-free for users. This tool is crafted to effectively cater to your email conversion requirements, whether for personal use or professional endeavors, ensuring a user-friendly experience throughout the process. With its comprehensive features, this converter is an invaluable asset for anyone needing to manage their email data efficiently.