ViceVersa Tools Adds a Thunderbird to NSF Option to Its Conversion Catalog

NEW DELHI - Sept. 12, 2026 - PRLog -- ViceVersa Tools has added a Thunderbird to NSF converter to its lineup of Windows conversion tools, giving users a direct path for moving mail out of Thunderbird and into the Notes Storage Facility format used by IBM and HCL Notes. The release is aimed at organizations retiring Thunderbird in favor of a Notes based mail environment, as well as IT teams handling the handoff.

The tool works in one direction only, pulling data out of Thunderbird rather than writing it back in. Users point the application at a Thunderbird profile, choose where the resulting NSF file should be saved, and run the conversion. Folder structure and attachments carry over with the message they belong to, so nothing has to be manually reassembled once the mail lands in Notes.

"A lot of these migrations happen because someone is leaving a mail client behind entirely," said a spokesperson for ViceVersa Tools. "The goal was to make that a clean handoff rather than something that needs cleanup afterward."

The converter is distributed through ViceVersa Tools' catalog installer, a single application that houses this tool alongside its other format pairs, including Thunderbird to PST, Thunderbird to MSG, and Thunderbird to MBOX. Rather than downloading separate programs for each conversion type, users install one application and unlock the SKUs they need. The installer runs on Windows 11, 10, 8.1, and 8.

Access follows a tiered structure. A free download lets users set up the catalog and preview a conversion before paying anything. From there, a Personal license runs $29, a Professional license is priced at $99 with lifetime updates included, and a Technician license at $299 covers use across unlimited machines, aimed at consultants or IT staff running conversions for multiple clients.

Availability

The Thunderbird to NSF converter: https://www.viceversatools.com/thunderbird-nsf.php is available now through the ViceVersa Tools catalog installer, downloadable from the company's website along with details on each license tier.

About ViceVersa Tools

ViceVersa Tools makes Windows utilities for converting mail and document data between formats, with a catalog spanning Thunderbird, Outlook, IMAP, Office 365, NSF, contact files, and PDF export. The company packages these conversions into a shared installer so users can add new format pairs without installing separate software for each one.