Microsoft SharePoint Online includes a free and simple migration GUI, Migration Manager, to assist you in your migration from SharePoint on-premises sites, file shares, and cloud-based document storage centers to Microsoft 365. The Migration Manager, which is located in the SharePoint Online Admin Center, can perform migrations to SharePoint Online, OneDrive, and Teams.

For additional information on Migration Manager including the types of migrations that it can perform, the hardware and software requirements, migration prerequisites, deployment considerations, and the steps used to complete a migration please visit my detailed article: Using Microsoft Migration Manager to Migrate Content to SharePoint Online and OneDrive available at