Streampost

X (Twitter) Text Formatter — bold and italic in tweets

Format tweets with bold, italic and special Unicode text. Free, no sign-up, copy instantly.

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 X (Twitter) look.

  3. 3

    Copy and paste

    One click on "Copy", then paste into X (Twitter). 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.

X offers no formatting for tweets. With Unicode characters you can still highlight individual words — handy for announcements or for setting subheadings inside a thread.

Important on X: the 280-character limit applies to these characters too. They count normally, so they buy you no extra room.

Use them sparingly — when space is tight, a single highlighted word lands harder than a fully formatted tweet.

Frequently asked questions

Can you write tweets in bold?

Not through X itself. Generate the text here, copy it and paste it into your tweet.

Do special characters count towards the 280 limit?

Yes, normally. They do not give you any extra space.

Does it work in the X bio?

Yes — in tweets, replies, your bio and display name.

Is my text stored anywhere?

No, everything runs in your browser.

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