ContinuMail Converter 0.1.0
First public release of ContinuMail Converter — a free, open-source, local-first tool that converts Gmail Takeout and other mbox archives into Outlook PST files on Windows, without Outlook installed and without uploading anything.
Install
Download ContinuMail Converter_0.1.0_x64-setup.exe below and run it. Windows 10/11, 64-bit; installs for the current user (no admin required).
"Windows protected your PC"? This release is not yet code-signed, so Windows SmartScreen may warn about an "unknown publisher." If you trust this source, click More info → Run anyway. Code signing is planned.
What it does
- Converts mbox → Outlook PST with a native, from-scratch PST writer — no Outlook, no COM automation (it never takes over your mail client).
- Local-first: makes no network connections and uploads nothing; your originals are only ever read.
- Preserves folder structure, attachments (incl. inline images and embedded
.eml), HTML bodies, dates, To/Cc/Bcc, read/unread, importance, and threading. - Scan & preview before converting, size-based PST splitting, live progress, and conversion reports.
Notes
- Windows-only and mbox-only for now (EML/MSG input planned).
- Licensed GPL-3.0-or-later. Bundles LGPLv3 PSTFileFormat (ROM Knowledgeware) and MIT MimeKit.
See the README for full details. Please keep backups and validate output before relying on it.