How to Use the LinkedIn Text Formatter
- Write your post in the box, or paste a draft over the example.
- Select words and click B for bold, I for italic, BI for bold italic, U for underline or S for strikethrough. Click again to remove the style.
- Select lines and click a list button to add bullets or numbers. Clear turns selected text back into plain letters.
- Read the preview. It stops about where LinkedIn cuts the post with its โฆmore link, and Show full post opens the rest.
- Check the counter, then click Copy post and paste the text into LinkedIn.
LinkedIn Character Limits
These are the limits we could confirm on October 12, 2026. The headline and About numbers come from LinkedIn's Talent Blog, because LinkedIn Help does not list them.
| Field | Limit | Source |
|---|---|---|
| Post | 3,000 characters | LinkedIn Help |
| Comment | 1,250 characters | LinkedIn Help, for group comments. Buffer and AuthoredUp use 1,250 for feed comments too. |
| Headline | 220 characters | LinkedIn Talent Blog |
| About section | 2,600 characters | LinkedIn Talent Blog |
| Connection request note | 200 characters | LinkedIn Help |
| Group post | 3,000 characters | LinkedIn Help |
| Ad introductory text | 3,000 characters, with 150 advised to avoid truncation | LinkedIn Marketing Solutions Help |
The counter counts UTF-16 code units, as Buffer's API documentation does for LinkedIn. Bold and italic letters sit outside Unicode's Basic Multilingual Plane, so each counts as 2, and underline or strikethrough adds 1 per character. LinkedIn does not publish its method, so we use the stricter count.
LinkedIn does not publish where see more appears either. Hootsuite puts it at around 140 characters, AuthoredUp at about 210 on desktop and 140 on mobile, and Post Formatter at about three lines, counting blank lines. LinkedIn's ad specs advise 150 characters to avoid truncation.
The preview stops at about 210 characters or three lines on desktop, and about 140 characters or three lines on mobile, whichever comes first.
Bold and Italic on LinkedIn: Use Them Sparingly
LinkedIn posts have no real bold or italic. Formatters swap your letters for look-alike symbols from Unicode's Mathematical Alphanumeric Symbols block, so a bold B is a different character from the B on your keyboard. That has two costs.
Screen readers handle these symbols badly. In tests by accessibility consultant Adrian Roselli in 2021 and 2025, screen readers either skipped the styled words or read them one letter at a time with the style name. Only TalkBack on Android read them as normal words.
Search may miss them. LinkedIn does not document how its search treats styled letters. LinkedIn consultant John Espirian warns they are not indexed as plain text, and AuthoredUp reports that LinkedIn search treats them as different from plain letters.
- Bold one line at most, usually the hook.
- Keep names, job titles, keywords and hashtags in plain text.
- Never style a whole post. A screen reader user may hear nothing, or a long string of letter names.
- Leave your headline and About section plain, since they carry the words people search for.
Formatting Habits That Keep People Reading
On LinkedIn the first lines do the selling. Everything below the cutoff gets read only if those lines earn the tap on see more.
- Open with one line that names a problem or makes a promise, under about 140 characters so it survives the mobile cutoff.
- Keep lines short. A sentence that wraps three times on a phone reads like a wall of text.
- Leave white space between ideas, but remember that a blank line uses one of the three preview lines.
- Give each line one idea, so a reader who skims can still follow the post.
- Use lists for steps and options. Bullets and numbers are ordinary characters, so they carry none of the costs of styled letters.
A simple routine: write in plain text, check the mobile preview, then bold the hook and nothing else.
For the full writing process, read the guide on how to write a LinkedIn post.
To learn from posts that already worked, see how to study viral LinkedIn posts.
Frequently asked questions
How do you bold text on LinkedIn?
LinkedIn posts have no bold button, so you paste letters that are already bold. Type your post above, select the words, click B, then copy the post into LinkedIn. Keep keywords and names plain so search can match them.
Does LinkedIn have a built-in text formatter?
Only for articles. LinkedIn Help says the article editor lets you bold or italicize text and add lists. For regular posts, AuthoredUp's July 2026 guide confirms there is no formatting toolbar, so people paste styled Unicode letters.
How many characters can a LinkedIn post have?
Up to 3,000, according to LinkedIn Help. Only the start shows before see more: about 140 characters on mobile and about 210 on desktop, by third-party measurements. In this counter, bold and italic letters count as 2 each.
Do bold fonts hurt reach on LinkedIn?
We found no LinkedIn statement that links bold Unicode to reach, and AuthoredUp says there is no evidence that bold text affects the algorithm. The costs you can verify are search and screen readers.
Can screen readers read bold text on LinkedIn?
Not reliably. In Adrian Roselli's March 2025 test, NVDA, VoiceOver and Narrator did not announce the styled words, JAWS read them letter by letter with the style name, and only TalkBack on Android read them as normal words.
Sources
LinkedIn Help, Post and share updates, read October 12, 2026.
LinkedIn Help, General limits for LinkedIn groups, read October 12, 2026.
LinkedIn Help, Personalize invitations to connect, read October 12, 2026.
LinkedIn Help, Write and publish articles on LinkedIn, read October 12, 2026.
LinkedIn Marketing Solutions Help, Single image ads advertising specifications, read October 12, 2026.
LinkedIn Talent Blog, 10 LinkedIn Profile Headlines to Inspire Your Own, read October 12, 2026.
LinkedIn Talent Blog, 14 LinkedIn Profile Summaries That We Love (And How to Boost Your Own), read October 12, 2026.
Buffer API documentation, Character Limits, read October 12, 2026.
AuthoredUp, LinkedIn Character Limits: Every Limit You Need to Know, read October 12, 2026.
AuthoredUp, How to Bold Text in a LinkedIn Post, read October 12, 2026.
Hootsuite, Ideal social media post length for every platform, read October 12, 2026.
Post Formatter, The LinkedIn 'See More' Cutoff: Where It Lands and How to Beat It, read October 12, 2026.
Adrian Roselli, Don't Use Fake Bold or Italic in Social Media, read October 12, 2026.
Adrian Roselli, Reference: SRs and Extended Characters, read October 12, 2026.
John Espirian, How to use bold and italics on LinkedIn, read October 12, 2026.
Unicode Consortium, Mathematical Alphanumeric Symbols code chart, read October 12, 2026.
Unicode Consortium, Combining Diacritical Marks code chart, read October 12, 2026.