Kernel Zimbra converter allows users to convert every Zimbra mailbox data item without any exception.
Convert all your emails from your Zimbra account and save them with metadata.
Convert and save your contacts with all the crucial fields like name, phone, email, etc.
Transform your important dates, events, meetings, reminders, etc. into different formats.
Our tool converts everything from your Zimbra mailbox, even the cloud shared folders.
Replicate your custom-made folders with the same folder structure as in the source.
Explore the core strengths and advanced functionalities that make the Kernel Zimbra Converter tool a vital software for all your Zimbra conversion needs.
Save your crucial Zimbra emails, contacts, attachments, etc., mailbox items to Outlook PST data file in 3 simple steps – Download Zimbra TGZ converter tool, convert TGZ to PST with complete or selective data, and import PST into Outlook.
With this Zimbra TGZ converter tool, you can also migrate Zimbra to Office 365 and experience the powerful features of Microsoft. The tool supports migrating Zimbra mailboxes directly to Office 365's user mailbox, archive mailbox, and Public folder.
Best Zimbra converter to transform your confidential emails into uneditable documents. Convert your Zimbra emails (with attachments) into a PDF format. Share, store, or use the PDF for legal or compliance activities.
In addition to PST and PDF formats, the tool can save your emails in various other formats. Use the Zimbra TGZ converter software to convert emails and other mailbox items into formats such as EML, MSG, DOC, DOCX, HTML, and MHT.
Use the date filter to extract data from a specific time duration, like day, week, month, or year. Additionally, the free Zimbra converter enables you to include/exclude data categories like Emails, Contacts, Calendars, Tasks, & Briefcase.
The Zimbra converter tool offers 3 modes to add source mailbox data – Add File (single TGZ file), Add Extracted Folders, and Add Single Folder. If you select a single folder for conversion, only the files inside the folder will be converted.
In addition to conversion, the tool also allows users to preview all mailbox data items like email messages, From, To, Subject, attachments, etc. For easy navigation, the Zimbra converter software displays the mailbox data in an easy-to-access structure.
The tool is compatible with all TGZ files created on any Zimbra desktop client version. Additionally, you can download the Zimbra converter software on any Windows computer as the software supports all Windows OS versions.
The Zimbra mail converter tool features a trial version that you can try for free. You can add, preview, and convert Zimbra emails with the trial version. However, the free version only converts 25 items per folder. For unlimited conversion, you must upgrade.
Here are the easy-to-follow steps to convert Zimbra emails using the Zimbra mail converter tool:
Check out the unique capabilities of our converter that make it the best converter for Zimbra mailboxes.
The Zimbra converter supports the conversion of multiple mailboxes at once. The bulk conversion is most beneficial for large enterprises with numerous mailboxes.
Get the same data in the destination as you had in the source. The Zimbra Mailbox converter preserves data integrity along with the original multi-folder or nested folder structure.
The Zimbra converter tool saves the data with original metadata and key attributes. You get the same date, From, To, Cc, Subject, message body format, read/unread status, and more.
Our Zimbra converter software has a special PST split feature that can split large-sized TGZ file into multiple small PSTs based on size (min 1GB & max 50GB).
Doesn’t matter if you are a complete novice or an expert in email conversion. Our tool is developed with a super simple user interface with easy-to-understand functions.
Convert Zimbra mails without any limitations. Add a Zimbra mailbox file of any size and convert it. The Zimbra converter tool has no TGZ file size restrictions.
Our company decided to switch entirely from Zimbra to Microsoft Outlook. The thought of migrating years of emails felt like a total nightmare. I tried a few manual tricks, but nothing felt reliable. Then I found the Kernel Zimbra Converter. The tool worked as I wanted it to. It converted all my emails, contacts, calendar entries, etc., to PST, which I then easily imported into my Outlook. ”
I needed to send a specific set of emails from my Zimbra mailbox to my legal team, and they wanted the emails in PDF format. I was looking for a reliable third-party software that could convert emails offline while keeping my confidential data secure. Fortunately, I found Kernel Zimbra Converter. The tool’s simple interface helped me to quickly extract the emails in PDF format.”
Take a look at what you get with different license version of the Zimbra converter tool.
Features | Home License |
Corporate License |
Technician License |
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License usage | Personal Use | Single Organization | Services Provider |
Validity | Lifetime | Lifetime | Lifetime |
Numbers of Machine | 5 Machines | 25 Machines | Unlimited |
No File Size Limit | ![]() |
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Filters | ![]() |
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Mailbox Items Preview | ![]() |
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Save to Multiple Formats | ![]() |
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Save to Office 365 | ![]() |
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Only $69 | Only $199 | Only $499 |
Check out the commonly asked questions and understand the tool’s capabilities better.
Version: 25.1
Release Date: July 2025
License Type: Home, Corporate & Technician
Hard Disk: 512 MB of disk space
Memory: Minimum 2 GB
Processor: Intel® Pentium Processor compatible (x86, x64) or equivalent
Operating System: Windows 365, 11, 10, 8.1, 8, 7, Vista, XP, Windows Server 2022, 2019 & older versions.