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X (Twitter) Text Formatter

Free X / Twitter text formatter and bold text generator with a live tweet preview. Add bold, italic, strikethrough and 8+ font styles to tweets, replies and your bio.

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Sarah Johnson@sarahjohnson·1h
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How to Format Text on X (Twitter)

X has no formatting buttons for tweets, replies or your bio. To make bold text on X, you need special Unicode characters that look like bold, italic or styled letters. This X text formatter converts your text automatically — copy the result and paste it into any tweet or your profile.

1

Type or paste

Enter the text you want to format into the editor above.

2

Select text

Highlight the words you want to style, or leave unselected to format all.

3

Pick a style

Click Bold, Italic, Strikethrough, or choose from the font dropdown.

Copy & paste

Click Copy, then paste into your tweet, reply, bio or display name.

The live tweet preview on the right updates as you type. Keep an eye on length: X counts these styled Unicode characters with a weighted scheme — bold and italic letters usually count as two characters each — so format a few key words rather than the whole tweet to stay within 280.

X Font Styles

8 styles in this free formatter. The Chrome extension adds 12+ more.

𝗛𝗲𝗹𝗹𝗼 𝗪𝗼𝗿𝗹𝗱

Bold

Make the first line of your tweet impossible to scroll past.

𝘏𝘦𝘭𝘭𝘰 𝘞𝘰𝘳𝘭𝘥

Italic

Emphasize a quote, title, or aside in a reply.

𝙃𝙚𝙡𝙡𝙤 𝙒𝙤𝙧𝙡𝙙

Bold Italic

Maximum emphasis for a punchy one-liner.

H̶e̶l̶l̶o̶ ̶W̶o̶r̶l̶d̶

Strikethrough

Corrections, edits, or playful crossed-out takes.

H͟e͟l͟l͟o͟ W͟o͟r͟l͟d͟

Underline

Underline a key term or call to action.

𝙷𝚎𝚕𝚕𝚘 𝚆𝚘𝚛𝚕𝚍

Monospace

Fixed-width text for code, tickers, or a techy look.

𝒽𝑒𝓁𝓁𝑜 𝓌𝑜𝓇𝓁𝒹

Script

Elegant handwriting style for a standout bio.

ʜᴇʟʟᴏ ᴡᴏʀʟᴅ

Small Caps

Subtle small capitals for labels and section headers.

Why Format Your Tweets?

The timeline moves fast. A bold opening line and a clean structure earn the stop — and the reply.

Win the first line

A bold hook stops the scroll in a fast-moving timeline.

Structure your threads

Bold sub-headers make long threads easy to skim and follow.

Style your profile

A formatted display name and bio stand out in search and mentions.

Make replies pop

A styled key phrase helps your reply get noticed under big posts.

Skip the Copy-Paste — Format Inside X

This editor is great for quick formatting, but the Post Formatter Chrome extension lets you format text directly inside X — in the compose box, replies and your bio — with no copy-pasting:

  • Inline toolbar — select text and format without leaving X
  • 20+ font styles — fraktur, double-struck, bubble, square and more
  • Live preview — X, LinkedIn, Facebook, Threads and Bluesky
  • Keyboard shortcuts — Ctrl+B for bold, Ctrl+I for italic
  • Character counter — see X's weighted count as you type
  • Drafts with folders — save and organize tweet ideas
Add to Chrome — It's Free

Frequently Asked Questions

How do I make bold text on X (Twitter)?
X has no bold or italic button. To add bold text, use the X Text Formatter above: type your text, select it, click Bold, then copy and paste it into your tweet, reply or bio. The tool converts your letters into Unicode bold characters that X displays exactly as typed.
Where does the formatting work on X?
Anywhere you type on X: tweets and threads, replies, quote posts, your display name, your bio, and List names. Because the output is plain Unicode text, it works on x.com and in the X mobile apps without any extra steps.
Do styled characters count toward the 280-character limit?
Yes — and it matters. X counts characters with a weighted scheme, and Unicode 'math alphanumeric' letters (the ones used for bold and italic) usually count as two characters each, so styled words use up your 280-character limit faster than plain text. Format your key words and your hook rather than the whole tweet.
Can I bold my X display name and bio?
Yes, and it's one of the best uses. A bold or styled display name and bio make your profile stand out in search, mentions and the who-to-follow panel. Paste the formatted text straight into your X profile settings.
Is this X / Twitter text formatter free?
Yes — completely free, no sign-up, no limits. The Post Formatter Chrome extension is free too and formats text inline on X so you never have to copy-paste.
Will the formatting show on the X mobile app?
Yes. Unicode characters render identically on the X iOS and Android apps and on x.com, because they are real text characters, not images or HTML styling.
Are there any downsides to Unicode text on X?
A few: styled words are not searchable, screen readers may not read them correctly, and styled characters eat into your 280-character budget. Use formatting for emphasis on a few words, not entire posts.
Can I use the same tool for LinkedIn, Facebook and Threads?
Absolutely. The same Unicode text works on LinkedIn, Facebook, Threads, Bluesky, Instagram and more. We have a dedicated formatter for each platform, and the Post Formatter extension formats inline across all of them.

More Free Text Formatters

LinkedIn Text Formatter

Bold, italic & 8+ Unicode styles with a live LinkedIn preview.

Facebook Text Formatter

Bold & fancy fonts for Facebook posts, comments and your bio.

Threads Text Formatter

Style Threads posts, replies and bio with bold and italic.

Font Generator

Copy & paste 19 fancy fonts — fraktur, script, bubble and more.

Character Counter

Count characters and check platform limits before you post.

Post Formatter Extension

Format inline on X, LinkedIn, Facebook & Threads — 20+ styles, free.