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Gmvault is a lightweight, open-source utility developed by Guillaume Aubert that enables users to create full, incremental, or selective backups of any Google Gmail account and to restore messages to the same or a different account on demand. Designed for personal archiving, migration, and disaster-recovery scenarios, the program runs from the Windows command line, authenticates securely through OAuth2, and downloads every email with its attachments, labels, and metadata into a portable, compressed archive that remains readable by standard mail clients. Because the stored data is organized in plain-text MIME format, it can be browsed offline, imported into another Gmail or G-Suite mailbox, or transferred to a different provider without vendor lock-in. System administrators and individual users rely on Gmvault for scheduled nightly backups, pre-departure snapshots when employees leave an organization, and rapid restoration after accidental deletion or ransomware incidents; the same archive can also seed a new account when domain names change or when users adopt a paid Google Workspace plan. The application supports resume operations, bandwidth throttling, and date-range filtering so that only recent messages are refreshed on subsequent runs, making long-term archival practical even on modest hardware. Distributed under the BSD license, the software is classified in the “Backup & Restore” category and is currently offered in a single stable release, version 1.9.1. Gmvault is available for free on get.nero.com, with downloads delivered through trusted Windows package sources such as winget, always providing the latest build and supporting batch installation alongside multiple applications.
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