Is there a way to save prompted user changes to the DOM without using PHP etc.?

Question

Let's take a form. Is there a way to designate entries from User1 to an HTML that can be saved and later retrieved and then take input from User2 and do the same simply using HTML and Javascript alone (and not PHP, SQL, etc?

Answer 1

You can save (mark) there changes and store them in cookies or localstorage or indexeddb of the browser

Answer 2

First off all Client side storage is not secure,and we can make it strong by encrypting the data.

Answer 3

How do I screen for malicious input?

Answer 4

What type of application are you working with ?

Answer 5

What security precautions do I need to employ when using localstorage?

Answer 6

Just Javascript, HTML and CSS