Best NSF to PST Converter – Must have in 2023

Published On - December 28, 2022 by Henry Bray | Reading Time: 4 minutes

In 1989, when email technology was still maturing, Lotus Notes enjoyed a certain renown and appeal. It’s a client-server program for teamwork and comes standard with the Domino server. Numerous email clients emerged as technology and commerce developed. Outlook, made by software giant Microsoft, is the most common. Microsoft Outlook’s pre-integration with the ubiquitous Microsoft Office suite and its user-friendly interface significantly impacted many companies. This ultimately led to information being transferred to the latter and raise the need for a best NSF to PST converter tool.

Also, exporting data to Outlook makes sense if a new manager needs to become more familiar with IBM Notes or because upper management wants to reduce training and maintenance costs.

Best 5 NSF to PST Conversion Software

The market currently hosts a plethora of email conversion software options. We have produced a list of the top five NSF to PST converter applications to assist you in making your decision.

  1. Regain NSF to PST Converter

The Regain NSF to PST Converter is a simple program that helps people convert their NSF files to PST format without losing any information. It’s an indispensable tool for anyone planning to switch from Lotus Notes to Outlook, thanks to a host of features like encrypted NSF removal, email filtering, and folder-to-folder mapping.

Having compatibility with all versions of Lotus Notes and Outlook makes it a useful tool for many people. Regain NSF to PST Converter is an excellent choice for users of all skill levels.

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  • Transfers emails from NSF files to Outlook PST without changing their format or attributes.
  • Exports data (emails, contacts, calendars, notes, journals, etc.) from NSF to PST format without losing data integrity.
  • Allows you to convert a single NSF file or a batch of them at once, saving you a ton of time.
  • Converts NSF files to a wide variety of other formats, including PST, MBOX, EML, Gmail, Yahoo, HTML, Office 365, and more.
  • Regain NSF to PST Converter allows users to preview their NSF mailbox items and remove encryption from their NSF files, so there’s no need to worry if one of these features is currently in use.
  • You can choose which elements in your NSF file to convert to a PST, and you can even choose to leave duplicates out of your converted PST file.
  • Large NSF files can be converted (Up to 50 GB in size.)
  • Lotus Notes and Microsoft Outlook are fully supported.
  • The first 30 emails can be converted from Regain NSF to PST for free with the program’s trial version.
  1. Stellar NSF to PST Converter

When converting Lotus Notes NSF files to Outlook PST files, Stellar NSF to PST Converter is among the best and most popular options. Stellar’s NSF to PST program is widely regarded as the best option for converting Lotus Notes mailboxes to Outlook PST format quickly and with minimal data loss risk. This powerful program can convert from NSF to PST, MSG, EML, RTF, HTML, PDF, and Office 365. It’s compatible with the most recent release of Lotus Notes (version 10.0.1) and versions 9.0.1, 9.0, 8.5, 8.0.2, 7.0, 6.5, and 6.0.


  • Lotus Notes to PST Converter converts Lotus Notes mailboxes into a format that can be imported directly into Microsoft Outlook.
  • Also, allows you to export your whole mailbox or specific items to a .pst file.
  • To save time, you can select which things in your inbox to convert, thanks to the preview feature.
  • If the user does not know where the PST file is located, they can instead perform a system-wide search for any NSF files that may be available on the machine.
  • The Software’s efficacy can be evaluated with the help of a free version that allows you to convert 10 files per folder.
  1. SysTools NSF to PST converter

SysTools NSF to PST Converter employs robust algorithms to convert all mailbox items, including emails, tasks, contacts, notes, journals, and more, from NSF files to the more widely used and compatible PST format. Users can also export the encrypted contents of NSF files and their correct metadata to the PST format.


  • To, From, and Date fields are preserve during the NSF to PST conversion.
  • Attachments of any type (pictures, documents, pdf, etc.) can also be migrated along with NSF files.
  • Converts names.nsf files containing contacts to the relevant Outlook format, ensuring that all fields are kept in the process.
  • Depending on its original size, the converted PST file can be divided into many more manageable files.
  • Use the SysTools Export Notes program to transfer your NSF file to the Exchange Server.
  • It also efficiently maintains the current Lotus Notes inbox’s folder hierarchy.
  1. Kernel NSF to PST Converter

The Kernel for NSF to PST program is a powerful and reliable Lotus Notes to Outlook converter that can export your email from NSF files to the PST format while keeping all of your original email’s formatting and formatting. Converting is easier and less time-consuming, thanks to its many features and customization possibilities.


  • Quickly converts Domino Server NSF files to Outlook PST format
  • Allows for selective conversion of individual items from NSF files
  • Allows for the creation of smaller, more manageable PST files as a result of the conversion process
  • It also preserves the email’s original properties (Attachments, To, From, Cc, Bcc, etc.)
  • Converts multiple NSF files to PST format simultaneously
  • Provides the option to preview mail items before conversion
  1. Aryson NSF to PST Converter

It’s a robust NSF to PST converter that can let you save your data in various formats after the conversion. All major releases of Lotus Notes and Microsoft Outlook are supported.

  • The converter makes converting your NSF files to PST format simple and safe.
  • The Aryson Technologies NSF to PST Converter can process very big NSF files.
  • Password-protected or encrypted NSF file conversion is supported.
  • When converting from NSF to PST for use in Outlook, all the metadata will remain intact.
  • With Aryson NSF Converter, you may selectively convert individual email messages.
  • Works with the most recent release of Lotus Notes and earlier releases.
  • Allow conversion of NSF files into other formats such as PST, EML, MSG, MBOX, HTML, PDF, and VCARD with the help of Aryson NSF Converter.
  • The free trial version saves 50 items per folder and exports NSF files directly into Exchange Server or an Office 365. 

Which Software is best suitable for you?

As you can see in the above comparison, almost all Software offers the same features. However, I suggest using Regain Software; due to its high speed and pocket-friendly price. With Regain NSF to PST converter tool, you can process around 100GB in half an hour, and also, where every tool starts at $120, Regain software starts from $49, so you should try it and make the decision by yourself.


Converting from Lotus Notes to Outlook can be done for various reasons. The top five NSF to PST converters is available here on this blog. If you’re looking for a software solution, we hope this article was useful. Remember that you require a reliable and user-friendly tool when converting your email data. You can trust that your information will remain secure when using Regain NSF to PST Converter. Why hold off? Easily transform your NSF files into PST format with this free trial, available for download from the product page.

Author: Henry Bray

Henry Bray is a young technologist and content a Content Writer at Regain Software, loves to write about MS Outlook, MS Exchange Server, Office 365, Mozilla Thunderbird and many more email applications.

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