How to find the size of localStorage in HTML?

#localStorage is used to save information across multiple sessions. Its maximum size is 5MB.

Example

You can try running the following code snippet to check the allocated size -

var sum = 0;

// loop for size
for(var i in localStorage) {
   var amount = (localStorage[i].length * 2) / 1024 / 1024;
   sum += amount;
   document.write( i + " = " + amount.toFixed(2) + " MB");
}
document.write( "Total = " + sum.toFixed(2) + " MB");

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