How to add comments in HTML?

Write the comment between . The browser ignores it and does not show it on the page.

<!-- This is a single-line comment -->
<h1>Welcome</h1>

<!--
  This is a
  multi-line comment
-->

You can also use a comment to switch off a piece of code for a while. In most editors the shortcut is Ctrl + /.

Comments are not secret, because anyone can see them in “View page source”. Do not write passwords in them. Learn more in HTML Comments.

Learn more about the similar topics:

Tutorials
HTML Comments

Exercises & Assignments
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