<hr> or <hr/>?

Question

what are the.difference between them?

Answer 1

HTML4.0: <hr>
XHTML1.0: <hr />
HTML5: both are accepted

[https://stackoverflow.com/questions/18839848/in-basic-html-is-the-correct-horizontal-rule-element-hr-hr-or-hr]

Answer 2

Depends on which version of HTML you are about to use :
HTML4.0: <hr>
XHTML1.0: <hr/>
HTML5: both
And there is no more difference than that

Answer 3

For HTML5, you can use either one of them.
For React.js, all tags must have closing, you need to use <hr />.

Answer 4

actually you can use both in HTML5 but in older versions you've to use <hr/>

Answer 5

I use <hr /> just to keep the habit for universal comparability.