You may need to format an SD card or micro SD card for several reasons on your Mac, whether it be for your smartphone, Raspberry Pi mini PC, Arduino project, digital camera or games console.

You can format an SD card using Windows, Mac, and Android devices, and likely your digital camera too.

You can clear an SD card by formatting it, which is the best way to free up space on a card. To format an SD card, you can use the File Explorer app on a PC, or the Disk Utility app on a Mac.