LinkedIn Text Formatter

How to use it

1. Write or paste your post into the box. Line breaks stay as you type them.
2. Select the words you want to style and press Bold, Italic, Bold italic, Underline, Mono or Strike. With nothing selected, the style applies to the whole post. Clear turns styled text back into plain letters.
3. Select lines and press a bullet button (bullet, arrow, check or numbered) to prefix each line.
4. Switch the feed preview between Desktop and Mobile and check what shows before see more. The counter shows characters out of 3000.
5. Press Copy post and paste it into LinkedIn.

How bold text on LinkedIn works

LinkedIn's post box has no bold or italic button. The bold text you see in other people's posts is made of different characters. Unicode has a block called Mathematical Alphanumeric Symbols (U+1D400 to U+1D7FF) that contains whole alphabets in bold, italic, monospace and other shapes. They were added for mathematics. This formatter swaps each plain letter for its styled twin: A becomes 𝗔, and so on.

That has two consequences. The styled letters are real text, so they paste anywhere that accepts Unicode. But they are not a font, so the app has no idea they are meant to be bold. Unicode itself recommends against using these characters as a substitute for formatting in general text, which is worth keeping in mind.

This site is not connected to LinkedIn. The name is used only to describe where the text is going.

What the toolbar does

Accented letters and other alphabets have no styled twins, so they stay as typed. If you style a word like résumé, the accented letters will look plain next to the styled ones.

Styles replace each other. If you press Bold on text that is already italic, the tool turns it back to plain letters first, then applies bold.

Bullets and line breaks

Select a few lines and press a bullet button to put a bullet, an arrow, a check mark or a number in front of every non-empty line. Numbers count up from 1 for the selected block. Blank lines are left alone, which keeps the spacing of your post.

Line breaks do count toward the limit. A short post with many one-line paragraphs uses more characters than the same words in a block.

Character limits worth knowing

These figures come from AuthoredUp's guide and other community sources. LinkedIn changes them without announcements, so treat them as a guide.

Where the see more cut-off falls

A long post is folded in the feed. Only the first lines show, followed by a see more link. Community measurements put the cut at about 210 characters on desktop and about 140 on mobile. LinkedIn does not document these numbers.

The preview in the tool uses those two estimates and also folds after three lines, whichever comes first. Take the starter text in the box: it is 142 characters on 8 lines. The first three lines (the hook, a blank line and "Here is what I changed:") add up to 59 characters, so the preview folds there on both desktop and mobile, because the line rule wins before either character limit is reached. The lesson is that blank lines eat into the visible space. A hook of 34 characters followed by a blank line leaves very little room before the fold.

A counted example

Type Most posts fail and press Bold. The 15 characters become 𝗠𝗼𝘀𝘁 𝗽𝗼𝘀𝘁𝘀 𝗳𝗮𝗶𝗹. The counter still says 15, because it counts characters. Under the hood, each styled letter is stored as 2 code units in UTF-16 and 4 bytes in UTF-8, so this string is 28 code units and 54 bytes. I have not verified how LinkedIn's own counter treats these letters, so if you are close to 3,000, leave a margin.

Common mistakes

Styling the whole post

Bold everywhere stops being emphasis. Style the first-line hook or two or three key phrases and leave the rest alone.

Styling hashtags, links and names

A hashtag in styled letters is not a plain hashtag, and a link in styled letters will not work. Names and keywords styled this way will not match a search for the plain word.

Ignoring screen readers

Screen readers may read styled letters as "mathematical bold capital A" and so on, or skip them entirely. Behavior differs between readers and versions, so I cannot give one rule, but it is common enough that a few styled words are the sensible limit. A styled paragraph can become unreadable for someone who relies on one.

Editing after pasting

Once pasted, styled text is just characters. If you fix a typo in LinkedIn's editor, you will type plain letters between styled ones. It is easier to edit here and copy again, or press Clear on the selection.

Related tools

The same Unicode technique powers the glitch text generator, and the Zalgo text remover cleans combining marks. For chat messages with real formatting instead of lookalike letters, the Discord text formatter uses Markdown, and the Discord timestamp generator builds time codes.

Sources

• AuthoredUp: LinkedIn character limits (post 3,000, comment 1,250, headline 220, About 2,600; see more estimates; line breaks count)
• Wikipedia: Mathematical Alphanumeric Symbols (block U+1D400 to U+1D7FF; Unicode advice against use as markup)

Checked October 2026. LinkedIn does not publish the see more cut-off, so those figures are estimates by third parties.