Download Carbon Copy Cloner
Carbon Copy Cloner requires OS X. CCC will not run on Windows.
Compatible with Snow Leopard, Lion, Mountain Lion, and Mavericks
Carbon Copy Cloner version 3.5.5 is the latest version available. Users running Mac OS X 10.6, 10.7, 10.8, or 10.9 should use this version of CCC. If you are having trouble downloading CCC from the link above, try this alternate download location.
Compatible with Tiger and Leopard
Users running Mac OS X 10.4 or 10.5 should use CCC 3.4.7. Note that while this version of CCC will work on Snow Leopard and Lion, it is not actively qualified for use on these OSes. We will continue to offer limited support for 3.4.7 on a case-by-case basis, but we are no longer actively developing this version.
CCC and Yosemite
Carbon Copy Cloner 3.4.7 and 3.5.5 are not supported on Yosemite.
When Yosemite is available on the Mac App Store, we will offer a version of CCC that is qualified on that OS. If we have a beta version of CCC available for testing on Yosemite before that time, we will make that information available here.
Updating an existing version of CCC version 3
Especially if you have backup tasks scheduled within CCC, we recommend that you update CCC via its built-in update mechanism. Launch Carbon Copy Cloner and choose "Update CCC..." from the Carbon Copy Cloner menu. Complete details are provided in the Installing an update when you have scheduled tasks Kbase article