Streampost

YouTube Text Formatter — bold in descriptions and comments

Format YouTube descriptions and comments with bold, italic and special Unicode text. Free.

Not real bold: these are Unicode characters that work anywhere you can paste text. Screen readers struggle with them, so use them sparingly.

  • BoldEnter text above to see every style.
  • ItalicEnter text above to see every style.
  • Bold italicEnter text above to see every style.
  • ScriptEnter text above to see every style.
  • FrakturEnter text above to see every style.
  • MonospaceEnter text above to see every style.
  • OutlineEnter text above to see every style.
  • Small capsEnter text above to see every style.
  • StrikethroughEnter text above to see every style.
  • UnderlineEnter text above to see every style.

How it works

  1. 1

    Enter your text

    Type the text you want to format. Everything else happens instantly — nothing to click.

  2. 2

    Pick a style

    You see your text in every style right away: bold, italic, script, outline, small caps and more. Choose whatever fits your YouTube look.

  3. 3

    Copy and paste

    One click on "Copy", then paste into YouTube. The formatting survives because these are real characters — no plugin or app needed.

Popular use cases

  • Profile optimisation

    A bio that stands out

    Highlight your name, your offer or your call-to-action. In a field with no formatting options, this is the only way to add emphasis.

  • Content creators

    Structure your posts

    Set subheadings in bold so longer captions become skimmable instead of overwhelming as a block of text.

  • Announcements

    Emphasise what matters

    Price, date or discount code catch the eye immediately when they stand apart from the running text.

  • E-commerce

    Structure product info

    Separate product name, price and details visually — even where the platform gives you no real formatting.

  • Personal style

    Your own aesthetic

    Script and small caps give your profile a signature look that stays recognisable in the feed.

  • Lists & guides

    Highlight the steps

    Mark step headings so readers instantly see where the next point begins.

YouTube is a special case: comments and descriptions already support simple formatting natively — *asterisks* for bold, _underscores_ for italic. Anything beyond that needs Unicode characters.

Script, small caps or outline do not exist on YouTube — those only happen through special characters. Handy for chapter headings in long descriptions.

Remember that only the first ~157 characters of the description are visible without a click and often appear in search results. That space belongs to readable keywords, not special characters.

Frequently asked questions

Can you write in bold on YouTube?

Yes — in comments and descriptions, *text between asterisks* works natively as bold. For other styles you need Unicode characters like these.

How do I write in italic on YouTube?

Natively with _underscores_ around the text. Or as Unicode characters from this tool.

Do special characters make sense in the description?

For chapter headings, yes. But the first 157 characters should hold normal keywords, since they appear in search results.

Is my text stored anywhere?

No, everything runs in your browser.

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