If you wished Google had a magic ‘merge’ button…
CloudGopher is what you're looking for
CloudGopher was specifically designed to overcome the frustration of merging Google-powered accounts. It's fast, secure, and very easy-to-use: You simply sign in to both accounts, then relax while CloudGopher quickly and securely copies your emails, folders, labels, contacts, calendars, docs, and files - completely intact.
Yes, it works between any type of Google account and any other - whether personal, business, or education. It really is that simple, and yes, it’s amazing.
CloudGopher copies your data between Google accounts
Merge accounts, take a backup, or keep a personal copy!
CloudGopher quickly copies all your emails (with their attachments). Plus it copies all of your email labeling and folder organization.
CloudGopher copies "Owned" and "Shared with Me" Drive files, plus all your folders and labels too! Plus, Google Docs, Sheets, Slides, and Forms copy over "as-is" and retain all their formatting.
CloudGopher copies over every one of your contacts, including e-mail addresses and contact info. Plus, all your group labels stay in-tact!
CloudGopher copies all your events into a copied Calendar so you can quickly refer back to what you did during specific time periods and look forward to being reminded of your recurring special events.