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.

Add to Chrome, It's Free

No copy-paste. Your text stays on your device. Also works on LinkedIn, Facebook, Threads & Bluesky.

EditorPreview
Post Formatter
Live Preview
X
Sarah Johnson@sarahjohnson·1h
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To format text on X (Twitter): type or paste your text into the formatter above, 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, 𝘪𝘵𝘢𝘭𝘪𝘤, 𝚖𝚘𝚗𝚘𝚜𝚙𝚊𝚌𝚎) that display correctly on every device, no HTML and no images. The conversion happens in your browser.

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
  • 30+ 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, 30+ styles, free.