Seagate DiskWizard is not available for Mac but there are a few alternatives that runs on macOS with similar functionality. The best Mac alternative is Clonezilla, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Seagate DiskWizard and four of them are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to Seagate DiskWizard are Rescuezilla (Free, Open Source), Acronis True Image (Paid) and Data Deposit Box (Paid).
Rescuezilla is a free, easy-to-use hard drive disk cloning and imaging application that boots as a live USB. Rescuezilla is fully interoperable with Clonezilla. This means that backups created by Clonezilla, can be restored with Rescuezilla (and vice versa).
Acronis True Image (or simply True Image) is a software product produced by Acronis that provides data protection including, backup, archive, access and recovery for Microsoft, macOS, iOS and Android operating systems.