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This guide demos how to bold YouTube comments – the demo also includes how to italicize, or strike through YouTube comments.

Option 1: Bold YouTube Comments from a PC

  • Open YouTube.com on your PC. Then open the video you want to comment on.
  • When the video opens, scroll down to Comments and click on the Add a public comment text field.
How to Bold YouTube Comments from a PC
  • To bold YouTube comments, start by typing asterisk (*). Then type your comment and end with another asterisk (*). To post your comment click COMMENT.
DO NOT add a space between your comment and the *. If you leave spaces between the asterisk (*) and your comment, the asterisk (*) will be interpreted as part of the comment. Here is a sample bold comment.
 *I am not so sure Nigel Farage actually wants the UK out of the EU!* 
How to Bold YouTube Comments from a PC
  • Here is the comment I just posted. Compare it to the one beneath it. Mine is bold! To see how to italicize a YouTube comment see the next points.
  • To italicize a YouTube comment, add underscore (_) before and after the comment. As with making a comment bold, DO NOT add a space between the underscore (_) and your actual comment. Here is an example…
 _I am not so sure Nigel Farage actually wants the UK out of the EU!_ 

And here is the comment in YouTube – displayed in italics!

  • Finally, to strike through a YouTube comment add a hyphen (-) before and after the comment without any spaces between the hyphen (-) and your actual comments…
  -I am not so sure Nigel Farage actually wants the UK out of the EU!- 

Here is the result in YouTube.

Option 2: Bold Comments from the YouTube App

The steps in this section applies to the YouTube App for Android and iOS (iPhone or iPad). Demo was done with the Android App.
  • Open the YouTube App on your phone. Then open the video you want to comment on.
How to Bold YouTube Comments from the YouTube App
  • When the video you want to comment on opens, scroll down to Comments. Then click Add a public comment…
  • To bold YouTube comments add asterisk (*) before and after the comment as shown below.
*This is a sample bold YouTube comment - no space between this text and asterisk*

Here is the comment in the YouTube mobile App.

And the result in bold!

  • To italicize your comment, add an underscore (_) before and after the comment as shown below…
 _This is a sample italicized YouTube comment - no space between this text and asterisk_
  • Finally, to strike through your YouTube comment, add a hyphen (-) before and after – with no spaces between the hyphens and your comment.
 -This is a sample italicized YouTube comment - no space between this text and asterisk-

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