Difference b/w local storage and cookies:-

	Cookies	Local storage
Client side / Server side.	Data accessible both at client side and server side. Cookie data is sent to the server side with every request.	Data is accessible only at the local browser side. Server cannot access local storage until deliberately sent to the server via POST or GET.
Size	4095 bytes per cookie.	5 MB per domain.
Expiration	Cookies have expiration attached to it. So after that expiration the cookie and the cookie data get’s deleted.	There is no expiration data. Either the end user needs to delete it from the browser or programmatically using JavaScript we need to remove the same.