Difference between 301 redirection and rel=canonical ?

[sharmaroshni012]

The rel=canonical element often called the “canonical link”, is an HTML element that helps webmasters prevent duplicate content issues by specifying the "canonical" or "preferred" version of a web page as part of search engine optimization.
Whereas
A 301 redirect is a permanent redirect from one URL to the other. A 301 redirect also is often described as a "change of address form" you might get at a post office. If someone doesn't know you moved, you want to make sure all your mail is forwarded to your new place.