Bold Text Generator

Type your text and copy it as bold, italic, underlined or struck-through letters that paste into LinkedIn, Instagram, X and Facebook. It runs in your browser, no sign-up.

Every style updates as you type. Press Copy next to the one you want.

  • Bold (serif)

    𝐘𝐨𝐮𝐫 𝐭𝐞𝐱𝐭 𝐥𝐨𝐨𝐤𝐬 𝐥𝐢𝐤𝐞 𝐭𝐡𝐢𝐬

    Classic bold with serifs. Works for digits too.

  • Bold sans

    𝗬𝗼𝘂𝗿 𝘁𝗲𝘅𝘁 𝗹𝗼𝗼𝗸𝘀 𝗹𝗶𝗸𝗲 𝘁𝗵𝗶𝘀

    Bold without serifs, closest to the LinkedIn and Instagram font.

  • Italic

    𝑌𝑜𝑢𝑟 𝑡𝑒𝑥𝑡 𝑙𝑜𝑜𝑘𝑠 𝑙𝑖𝑘𝑒 𝑡ℎ𝑖𝑠

  • Bold italic

    𝒀𝒐𝒖𝒓 𝒕𝒆𝒙𝒕 𝒍𝒐𝒐𝒌𝒔 𝒍𝒊𝒌𝒆 𝒕𝒉𝒊𝒔

  • Sans italic

    𝘠𝘰𝘶𝘳 𝘵𝘦𝘹𝘵 𝘭𝘰𝘰𝘬𝘴 𝘭𝘪𝘬𝘦 𝘵𝘩𝘪𝘴

  • Sans bold italic

    𝙔𝙤𝙪𝙧 𝙩𝙚𝙭𝙩 𝙡𝙤𝙤𝙠𝙨 𝙡𝙞𝙠𝙚 𝙩𝙝𝙞𝙨

  • Underline

    Y̲o̲u̲r̲ ̲t̲e̲x̲t̲ ̲l̲o̲o̲k̲s̲ ̲l̲i̲k̲e̲ ̲t̲h̲i̲s̲

    Adds a combining underline (U+0332) after each character.

  • Strikethrough

    Y̶o̶u̶r̶ ̶t̶e̶x̶t̶ ̶l̶o̶o̶k̶s̶ ̶l̶i̶k̶e̶ ̶t̶h̶i̶s̶

    Adds a combining stroke (U+0336) after each character.

  • Monospace

    𝚈𝚘𝚞𝚛 𝚝𝚎𝚡𝚝 𝚕𝚘𝚘𝚔𝚜 𝚕𝚒𝚔𝚎 𝚝𝚑𝚒𝚜

  • Script

    𝒴ℴ𝓊𝓇 𝓉ℯ𝓍𝓉 𝓁ℴℴ𝓀𝓈 𝓁𝒾𝓀ℯ 𝓉𝒽𝒾𝓈

  • Bold script

    𝓨𝓸𝓾𝓻 𝓽𝓮𝔁𝓽 𝓵𝓸𝓸𝓴𝓼 𝓵𝓲𝓴𝓮 𝓽𝓱𝓲𝓼

  • Double-struck

    𝕐𝕠𝕦𝕣 𝕥𝕖𝕩𝕥 𝕝𝕠𝕠𝕜𝕤 𝕝𝕚𝕜𝕖 𝕥𝕙𝕚𝕤

Each styled letter is one character on screen but two UTF-16 code units, and X counts it as 2 of your 280. Screen readers may spell these letters out one by one or skip them, and search inside the apps usually will not match them. Use it for a few words, not a whole post.

How the bold text generator works

Posts on LinkedIn, Instagram, X and Facebook are plain text. The apps store characters, not formatting, which is why there is no bold button when you write a post. This tool swaps each letter for a look-alike from the Unicode block "Mathematical Alphanumeric Symbols", which exists for math notation. A plain "A" becomes 𝐀, the character U+1D400 MATHEMATICAL BOLD CAPITAL A. Because the result is characters and not styling, it survives copy and paste.

Underline and strikethrough work differently: the tool adds a combining mark (U+0332 for underline, U+0336 for strike) after every character and the font draws the line. They look fine on short words and can show small gaps on some phones.

Examples

UseStyleResult
First line of a post, so it stands out before "see more"Bold𝐍𝐞𝐰 𝐫𝐨𝐥𝐞, 𝐧𝐞𝐰 𝐜𝐢𝐭𝐲
A short heading above a listBold sans𝟯 𝘁𝗵𝗶𝗻𝗴𝘀 𝗜 𝗹𝗲𝗮𝗿𝗻𝗲𝗱
Showing a changeStrikethroughLaunch moved from F̶r̶i̶d̶a̶y̶ to Monday
A title in italic: the digits stay plainItalic𝐶ℎ𝑎𝑝𝑡𝑒𝑟 12

Where it works and where it does not

It works in the text of posts, captions, comments and bios on LinkedIn, Instagram, X, Facebook and Threads, as long as the reader's device has a font with these characters (most current phones and computers do).

  • Usernames and handles: Instagram and X usernames only accept basic letters, numbers and a few symbols such as the underscore.
  • Hashtags and mentions: a bold hashtag is no longer the same hashtag, and a pasted bold name does not tag anyone.
  • Search: people searching for a plain word inside the app usually will not find your styled version of it.
  • Ads: Google Ads does not allow non-standard characters used for emphasis (Punctuation and symbols policy, checked September 2026).

Use it sparingly

Screen readers are the main reason to hold back. Depending on the app and the reader, 𝐇𝐞𝐥𝐥𝐨 may be announced as "mathematical bold capital H, mathematical bold small e", spelled out, or skipped. Bold one hook line or a few key words and keep the rest plain. Styled text also takes more room on X, which counts each styled letter as 2 (X counting rules, checked September 2026). Check the whole post with the social media character counter.

Writing a full LinkedIn post? The LinkedIn text formatter lets you bold single words inside your draft, add bullet lists and preview where the "...see more" cut lands.

FAQ

Can I paste bold text into Instagram, LinkedIn or X?

Yes. The result is made of Unicode characters, not formatting, so it pastes like any other text into posts, captions, comments and bios. How it looks depends on the font of the device reading it; on older phones a few letters can show as empty boxes.

Why do letters like é, ñ or ü stay normal?

Unicode only has bold, italic and the other styled versions for the basic letters A to Z. There is no bold é or bold ñ, so the tool leaves those letters as they are instead of swapping them for something that looks wrong.

Why do numbers stay plain in italic or script?

Unicode includes bold, bold sans, monospace and double-struck digits, but it has no italic or script digits. In those styles your numbers keep their normal shape.

Does bold text use more characters?

On X, yes: each styled letter counts as 2 of your 280 characters, so a bold sentence fills the limit twice as fast. Each styled letter is also 2 code units in UTF-16, which is how many tools measure length. LinkedIn and Instagram do not say how they count them, so leave some margin near the limit.

Is bold Unicode text bad for accessibility?

It can be. Screen readers may read each letter by its Unicode name, spell the word out, or skip it. Keep it to a few words, and never style names, hashtags, links or anything a reader needs to understand the post.

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