Which program should I use to clone Mac HDD to SDD?

Trying to breathe new life into my 13-inch, mid-2012 Macbook Pro, I intend to update the RAM from 8 to 16 GB and replace the HD with an SSD. Regarding storage, how does the file cloning process go? Using CNET’s approach, I successfully cloned my files and data in 2016. Since I didn’t have the money for a 1TB SSD at the time, I upgraded my 500 GB base storage to 1TB HD storage. What apps can I use to copy my files from my Macbook running OS Catalina to a new one?

There are a lot of disk cloning software for Mac for you to choose from, some can even clone the macOS to the external hard drive and enable you to boot your Mac from the cloned external hard drive. You can pick up the one best suits your case.

iBoysoft DiskGeeker for Mac is a good choice to clone the entire startup disk of your MacBook Pro to the new SSD. It fully supports macOS 15 to macOS 10.13 and works on both Intel Macs and Apple Silicon Macs. It is pretty easy to follow the onscreen guide to clone HDD to SSD after downloading iBoysoft DiskGeeker for Mac, only a few steps are needed to make a 1-to-1 copy and you can directly access the cloned data on the new SSD.