A LinkedIn post allows up to 3,000 characters. Other key limits: headline 220, About/Summary 2,600, comment 1,250, direct message 8,000, connection request note 300 (200 on mobile for free accounts), company tagline 120, first name 20, last name 40.
The full reference table with every field, its limit, and what it means for your content strategy is below.
Post limit
3,000
~210 chars visible before 'see more'
Headline
220
Most users only use ~80 chars
About/Summary
2,600
220 chars shown before 'see more'
Connection Note
300
200 on mobile for free accounts
| Field | Character Limit | Notes |
|---|---|---|
| Post (Feed update) | 3,000 | Truncated at ~210 chars on desktop before 'see more' |
| Headline | 220 | Appears in search, under your name everywhere on LinkedIn |
| About / Summary | 2,600 | First ~220 chars visible before 'see more' |
| Comment | 1,250 | Substantial enough for a meaningful reply |
| Direct Message (DM) | 8,000 | Much longer than most realize; supports multiline |
| Connection Request Note (desktop) | 300 | Free and Premium accounts on desktop |
| Connection Request Note (mobile, free) | 200 | Shorter on mobile for free accounts |
| Company Page Tagline | 120 | Shown below company name in search results |
| Company Page About | 2,000 | Full company description on the About tab |
| First Name | 20 | Profile field |
| Last Name | 40 | Profile field |
| LinkedIn Newsletter Title | 150 | Appears in subscriber notifications |
| LinkedIn Article Headline | 150 | Shown in the article and in feed when published |
| LinkedIn Article Body | 125,000 | Effectively unlimited for practical use |
| Event Name | 75 | Shown in notifications and event listings |
| InMail Subject | 200 | Sales Navigator and Premium InMail |
| InMail Body | 1,900 | Combined subject + body for InMail |
| Job Posting Title | 100 | Visible in job search and notifications |
| Skills (per skill) | 80 | Up to 50 skills allowed on a profile |
| Position Title (Experience) | 100 | Each job title in the Experience section |
Last verified May 2026. LinkedIn may adjust limits without notice.
Post limit (3,000 characters)
The hard ceiling for a feed post. In practice, posts between 900 and 1,800 characters see the best combination of completion rate and algorithmic distribution. Posts at the full 3,000-character limit tend to be newsletters in disguise and are better published as LinkedIn Articles.
Headline limit (220 characters)
Your headline shows up in search results, connection requests, comment sections, and anywhere your name appears on LinkedIn. It is your single most-viewed piece of text on the platform. Using 180 to 220 characters with a clear ICP, outcome, and credibility signal is the highest-leverage profile optimization you can make.
About section limit (2,600 characters)
The About section is your long-form positioning statement. Only the first 220 characters are visible before the reader clicks 'see more', so open with a hook, not a biography. Use the full 2,600 characters if you have genuine value to convey: your story, your approach, your results, and a call to action.
Comment limit (1,250 characters)
This is the often-overlooked limit. Substantive comments (over 300 characters) that add genuine insight to a post are one of the fastest ways to build visibility on LinkedIn in 2026, because the algorithm promotes posts with high-quality engagement. A 1,000-character comment is a short essay and can drive significant profile visits.
Connection request note (300 characters on desktop)
You have roughly two sentences to explain why you want to connect. Skip the generic 'I would like to add you to my network' and instead reference something specific about the person's content or company, state your relevant background, and ask a genuine question. Personalized notes have 3x higher acceptance rates than blank requests.
Direct message limit (8,000 characters)
Most people are shocked to learn LinkedIn DMs support up to 8,000 characters. This is longer than many blog posts. For outbound sales, a short DM of 100 to 200 characters with a specific, relevant reason to connect almost always outperforms a long DM. Use the extra space for follow-up threads once conversation has started.
Yes. Each line break counts as 1 character in LinkedIn's counter. Emojis count as 2 characters each because they use two-byte Unicode code points. A post with 10 emojis and 10 line breaks already uses 30 characters before you write a word of actual content. Build this into your character-budget planning, especially for posts that lean on visual formatting or emoji-heavy styles.
LinkedIn's post editor stops accepting input at exactly 3,000 characters and displays a red counter showing you are at the limit. You cannot paste additional text. Best practice is to keep posts at 2,950 characters or under to avoid the hard limit. If your draft exceeds the limit, consider splitting into a carousel, an Article, or a newsletter issue instead of cutting content arbitrarily.
LinkedIn shows approximately 210 characters of a post on desktop before cutting to 'see more'. On mobile, the cutoff is closer to 140 characters. The LinkedIn algorithm uses click-through rate on 'see more' as a signal of content quality. Posts with a compelling first line that drives 'see more' clicks get distributed to more second-degree connections. A weak first line tanks distribution even if the rest of the post is excellent. Treat your first 140 characters as a headline, not an introduction.
Mobile vs Desktop Discrepancy
Free LinkedIn accounts on mobile have a 200-character limit for connection request notes, while desktop allows 300. The post truncation also cuts earlier on mobile (around 140 characters vs 210 on desktop). If your ICP primarily uses the mobile app, write your opening lines to hook within 140 characters and keep connection notes under 200 characters to stay safe on both devices.
Keeping posts between 900 and 1,800 characters while making the first 140 characters a hook is a lot to track manually. Tools like Lifast generate LinkedIn posts that are already optimized for character count and structure, so you spend your time on ideas, not counting characters.
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LinkedIn truncates post text at around 210 characters on desktop and 140 characters on mobile before the 'see more' button appears. That means your first sentence does double duty: it counts toward the 3,000-character post limit AND it determines whether anyone clicks through to read the rest. If you burn your opening characters on a weak sentence, your reach collapses because low click-through rates tell the algorithm the post is not interesting.
Character limits in your headline and About section carry SEO weight inside LinkedIn search. LinkedIn's internal search engine indexes profile text and boosts profiles that use their full character allotment with relevant keywords. A 60-character headline loses to a 200-character headline that includes job title, industry, and value proposition, all else being equal.
For messaging, the 300-character connection request note (200 on mobile for free accounts) is one of the highest-leverage pieces of copy you will write on LinkedIn. You have less space than a tweet to make a stranger want to accept and respond. Every word must earn its place.
The most frequent mistake founders make is treating the 3,000-character post limit as a target rather than a ceiling. Data from multiple LinkedIn creators shows that posts between 900 and 1,800 characters consistently outperform both very short posts under 300 characters and very long posts over 2,200 characters. The sweet spot is long enough to deliver real value but short enough to respect the reader's time.
The second most common mistake is neglecting the headline limit. Most LinkedIn users fill only 60 to 80 characters of their 220-character headline. That unused space is valuable real estate. A fully optimized headline reads like a positioning statement: 'Founder at [Company] | Helping [ICP] achieve [outcome] | [Credibility marker]'.
The third mistake is hitting the comment character limit mid-thought. At 1,250 characters, a LinkedIn comment can be a meaningful response, but many people hit the limit by copy-pasting their reply from another source without checking. Always draft longer comments in a text editor first.
LinkedIn counts characters the same way most platforms do: each letter, number, space, and punctuation mark is 1 character. Line breaks count as characters too, typically 1 character per line break. Emojis are typically 2 characters each because they use Unicode code points that require 2 bytes in UTF-16 encoding, which is what LinkedIn's character counter uses under the hood.
URLs in LinkedIn posts count at their full length, not a shortened version. A URL like 'https://www.yourwebsite.com/very-long-article-slug' uses all 50 of its characters toward your post limit. This is different from Twitter, which shortens all URLs to 23 characters regardless of length. Plan your post length accordingly when including links.
Hashtags count as normal characters including the # symbol. A hashtag like #LinkedInMarketing counts as 18 characters. Most experienced LinkedIn creators add 3 to 5 hashtags at the end of their posts, adding 60 to 100 characters to the total count.
LinkedIn company pages have slightly different limits than personal profiles. The company tagline allows 120 characters and appears in search results below the company name. The company About section allows 2,000 characters, which is 600 fewer than the personal About section. Company page posts follow the same 3,000-character limit as personal posts.
For B2B founders managing both a personal profile and a company page, the strategic priority is almost always the personal profile. LinkedIn data consistently shows personal profiles receiving 5 to 10 times the organic reach of equivalent company page posts. Invest the most writing effort in your personal headline, About section, and posts.
Company pages do have one advantage: the Specialties section allows you to list up to 20 specialty keywords, each up to 25 characters. These keywords are indexed in LinkedIn search and can help your company page appear in relevant industry searches. Fill all 20 slots with specific, searchable terms relevant to your product and ICP.
Profile optimization starts with treating every character-limited field as a keyword-optimized piece of copy, not just a factual description. Your name field (20 characters for first name, 40 for last) should match how people search for you. Your current position title in the Experience section (100 characters) should include your role, company type, and the outcome you drive.
The Featured section has no character limit for display items, but the caption for each featured item is capped at 300 characters. This is prime real estate for describing what your lead magnet or case study delivers. The Education section description allows 1,000 characters per entry, enough to describe projects, thesis work, or relevant extracurriculars for recent graduates.
Your LinkedIn Skills section allows up to 50 skills, each up to 80 characters. The skills shown at the top of your profile have the most weight in search. Choose the top 3 with your most endorsements and make sure they exactly match the keywords your ideal clients or employers use in searches.
Think of characters as a finite resource. Allocate them intentionally across the four zones of every post.
This zone is fully visible on mobile before 'see more'. It must open a loop, create tension, or state a surprising fact. Do not introduce yourself here. Do not start with 'I'. The hook's only job is to make the reader tap 'see more'.
The bridge delivers on the hook's promise with context or a relatable setup. It frames why this topic matters to your specific reader. On desktop, some of this text is visible before 'see more', giving readers who scroll past the fold a second chance to engage.
This is the main content: your list, your story, your how-to, your data point. Most well-performing posts use 800 to 1,400 characters in this zone. Shorter feels thin. Longer risks losing the reader before the call to action.
End with a question, a call to action, or a restatement of your key insight. Add 3 to 5 relevant hashtags here (60 to 100 characters). Keep this zone tight. Readers who reach the end are your most engaged audience and deserve a clear next step.
Draft in a plain text editor first, then paste into LinkedIn. This prevents the editor from counting live while you write.
Keep your hook under 130 characters. Test it by reading only the first line out of context. If it is not intriguing alone, rewrite it.
Use single-line breaks (not double) between list items to save characters. Each extra blank line costs you 1 character.
Avoid pasting hyperlinks directly into posts. The full URL eats characters fast. Use the 'add link' button in comments to keep posts cleaner.
For your About section, front-load the value: your ICP, the outcome you deliver, and your differentiator, all within the first 220 visible characters.
The character limit is often the deciding factor between publishing a post and writing a full article.
Use a Post when
Use an Article when
Every messaging surface on LinkedIn has a different limit. Here is exactly how to work with each one.
At 8,000 characters, LinkedIn DMs are longer than most people realize. For cold outreach, shorter is almost always better: 100 to 200 characters with one specific reason to connect and one low-friction ask. Save the full 8,000-character capacity for detailed follow-ups, proposal threads, or sharing a long brief once a conversation is already underway.
The connection note is 300 characters on desktop and 200 on mobile for free accounts. Research by LinkedIn's own team found personalized connection notes increase acceptance rates by up to 3x over blank requests. With 300 characters, you have room for one compliment on their work, one line about yourself, and one genuine question or reason to connect.
InMail allows a 200-character subject line plus up to 1,900 characters for the body (combined limit). Despite having more space than a connection note, LinkedIn data shows that InMail under 400 words (roughly 2,400 characters) has significantly higher response rates. Lead with one relevant insight about their business, state your offer in one sentence, and close with a single yes/no question.
Common questions about LinkedIn's character limits for posts, profiles, and messages.
A LinkedIn post allows up to 3,000 characters including spaces, line breaks, and hashtags. The 'see more' truncation kicks in at around 210 characters on desktop and 140 characters on mobile, so your opening lines must earn the click.
The LinkedIn headline allows up to 220 characters. Most people use fewer than 80. A fully optimized headline uses 180 to 220 characters to include your title, company, value proposition, and at least one keyword your ideal buyer would search for.
The LinkedIn About section (also called the Summary) allows up to 2,600 characters. Only the first 220 characters are visible before the 'see more' button, so make your opening line compelling. Use the full allotment if you can fill it with genuinely useful content.
A LinkedIn connection request note allows up to 300 characters on desktop. On mobile for free accounts, the limit is 200 characters. LinkedIn Premium and Sales Navigator users have access to InMail which allows much longer messages, up to 1,900 characters for InMail subject and body combined.
Yes. LinkedIn comments are capped at 1,250 characters. This is enough for a substantive reply but shorter than a short post. If your response is going longer than that, consider whether the topic warrants a standalone post with a comment tagging the original author.
Yes. Hashtags count as normal characters including the # symbol. #B2BMarketing is 13 characters. Emojis count as 2 characters each. URLs count at their full unshortened length. Line breaks count as 1 character each. Plan your post length with these in mind.