Downloading PiCloner 1.0.4 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This free Mac app is a product of Arjan van Lent.
The following version: 1.0 is the most frequently downloaded one by the program users. The application lies within System Tools, more precisely Backup & Restore. PiCloner was developed to work on Mac OS X 10.4 or later. The application's installation file is generally known as picloner-1.0.4-universal.d.zip.
From the developer:
This application helps you create a backup image of your RaspberryPi's SD card. These images can be restored to your Pi with PiWriter or any other bit-copy program. The application uses a drag and drop approach where you drag a mounted disk's desktop. With this tool you can manage your SD cards for Raspberry Pi.
You may want to check out more software for Mac, such as PodSalvage, shadowBurn or SD Card Recovery, which might be similar to PiCloner.