When should I use localStorage VS cookies?

When should I use localStorage?

Local storage provides at least 5MB of data storage across all major web browsers, which is a heck of a lot more than the 4KB (maximum size) that you can store in a cookie. This makes local storage particularly useful if you want to cache some application data in the browser for later usage.

When should I use local storage vs session storage?

sessionStorage is similar to localStorage ; the difference is that while data in localStorage doesn't expire, data in sessionStorage is cleared when the page session ends. Whenever a document is loaded in a particular tab in the browser, a unique page session gets created and assigned to that particular tab.

Is local storage faster than cookies?

Also, as mentioned before, LocalStorage can hold up to 5MB of information. This is a whole lot more than the 4KB that cookies hold. LocalStorage behaves more like persistent cookies in terms of expiration. Data is not automatically destroyed unless it is cleared through Javascript code.

Is local storage safer than cookies?

Although cookies still have some vulnerabilities, it's preferable compared to localStorage whenever possible. Why? Both localStorage and cookies are vulnerable to XSS attacks, but it's harder for the attacker to do the attack when you're using httpOnly cookies.