Google Workspace vs imap-migrate

Google Workspace brings email, meetings, chat, calendars, file storage, and productivity apps into a paid suite. Its apps include Gmail, Meet, Chat, Calendar, Drive, Docs, Sheets, Slides, Vids, Forms, Sites, Gemini, Keep, Apps Script, and Tasks. Multiple people can edit documents simultaneously, follow changes as they appear, and communicate through comments and built-in chat. Drive stores updates automatically and supports sharing for viewing, downloading, and collaboration. Gemini availability varies by plan: Business Starter includes it in Gmail, while Standard includes it in Gmail, Docs, Meet, and more. Security options include 2-Step Verification, Single Sign-On, endpoint management, and archiving controls. Google also lists pre-integrated single sign-on for over 200 cloud apps and automated provisioning for those apps. Business Starter, Standard, and Plus have a 300-user maximum; Enterprise has no minimum or maximum. Workspace runs on Android, iOS, macOS, web, and Windows. There is no free plan, and a 14-day trial is available. Business plans start at $7/user/mo annually.

imap-migrate is a free, open-source command-line tool for transferring the contents of one email folder between IMAP hosts. It can work with providers that support IMAP, including Gmail, Outlook, Fastmail, Yahoo and custom servers. The tool preserves original received dates and flags such as Seen and Flagged, and shows progress, transfer speed, success and error counts, plus estimated time remaining. It records actions in migration.log. Its README says interrupted migrations can be rerun without duplicating emails; the --dry-run option checks connection and settings without moving messages. Credentials can be supplied as command-line arguments or environment variables, with environment variables recommended by the README as the more secure option. Both accounts need IMAP access enabled, and the tool requires Python 3.12 or higher; uv is recommended for dependency management. It runs on Linux, macOS and Windows and is licensed under MIT. It does not rebuild a full folder structure or migrate provider-specific features such as Gmail labels or categories. Bug reports and contributions are invited through GitHub issues and pull requests.