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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.

To format text on X (Twitter): type or paste your text into the formatter below, select the words to style, click Bold, Italic or another style, then copy the result into your X post, reply or bio. The formatter converts letters into Unicode characters (𝗯𝗼𝗹𝗱, π˜ͺ𝘡𝘒𝘭π˜ͺ𝘀, πš–πš˜πš—πš˜πšœπš™πšŠπšŒπšŽ) that display correctly on every device β€” no HTML, no images, no sign-up.

EditorPreview
Post Formatter
Live Preview
X
Sarah Johnson@sarahjohnsonΒ·1h
Start typing to see your X (Twitter) post preview...
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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 π—ͺ𝗼𝗿𝗹𝗱

Bold

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

𝘏𝘦𝘭𝘭𝘰 𝘞𝘰𝘳𝘭π˜₯

Italic

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

π™ƒπ™šπ™‘π™‘π™€ 𝙒𝙀𝙧𝙑𝙙

Bold Italic

Maximum emphasis for a punchy one-liner.

HΜΆeΜΆlΜΆlΜΆoΜΆ ΜΆWΜΆoΜΆrΜΆlΜΆdΜΆ

Strikethrough

Corrections, edits, or playful crossed-out takes.

H͟e͟l͟l͟o͟ W͟o͟r͟l͟d͟

Underline

Underline a key term or call to action.

π™·πšŽπš•πš•πš˜ πš†πš˜πš›πš•πš

Monospace

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

π’½π‘’π“π“π‘œ π“Œπ‘œπ“‡π“π’Ή

Script

Elegant handwriting style for a standout bio.

Κœα΄‡ΚŸΚŸα΄ α΄‘α΄Κ€ΚŸα΄…

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

Updated July 2026

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.