Count characters, words, and lines in real time. See exactly where LinkedIn cuts off your post with a see more preview. Includes a full character limits reference for every LinkedIn field.
Pick a context, then type or paste your content
This is what LinkedIn shows before collapsing your post. Desktop shows ~210 chars, mobile shows ~140 chars.
All limits as of 2026.
| LinkedIn Field | Character Limit |
|---|---|
| Feed post | 3,000 chars |
| Feed post see more cutoff (desktop) | ~210 chars |
| Feed post see more cutoff (mobile) | ~140 chars |
| Profile headline | 220 chars |
| About / Summary section | 2,600 chars |
| Comment on a post | 1,250 chars |
| Connection request note | 300 chars |
| Company page post | 700 chars |
| Article headline | 100 chars |
| Message / InMail body | 1,900 chars |
Now that you know your post fits within LinkedIn's limits, the bigger question is whether those first 140 characters will make someone tap see more. If you want post hooks that are written and optimized for engagement before you even open the composer, tools like Lifast draft full LinkedIn posts from your product or topic, so your character budget is spent on polishing rather than starting from zero.
Every part of LinkedIn has a hard character ceiling. Exceed the post limit of 3,000 characters and LinkedIn simply rejects the submit. Exceed the headline limit of 220 characters and the extra text is silently cut. These limits are not arbitrary: they reflect how LinkedIn renders content across its feed, search results, and profile cards, where long text gets truncated into a preview snippet anyway.
The more practically important limit for content creators is not the hard maximum but the see more cutoff. LinkedIn collapses feed posts to roughly 210 characters on desktop and 140 characters on mobile before adding a see more link. That first visible chunk is your entire hook. If your opening sentence does not create a reason to keep reading, most people never will. Knowing the exact character count of your hook lets you craft it deliberately.
Think of the see more cutoff as your headline. The 140 to 210 characters before it need to do the same job that a newspaper headline does: create enough curiosity or value signal that the reader decides the post is worth their next 30 seconds. The most effective openings in that window are a single strong claim, an unexpected statistic, a story that begins mid-scene, or a direct question aimed at the reader's specific problem.
What does not work: throat-clearing phrases like 'I am excited to share', passive context-setting, or burying the actual point behind two sentences of setup. Test your hook by looking at just the first 140 characters (the mobile cutoff). If that snippet does not make you want to read more, rewrite it before you post.
The limits differ sharply by surface area. Your profile headline (220 chars) is shown in feed previews, search results, and connection cards, making every character count for first impressions. The About section (2,600 chars) is read primarily by people already on your profile, so depth is rewarded there. Comments (1,250 chars) rarely need anywhere near the maximum, and a long comment that pushes the limit often looks like a pitch rather than a contribution.
The connection request note has the tightest hard limit at 300 characters. Most notes that actually get accepted are under 150 characters: one short sentence of context and one clear reason the connection makes sense for both sides. Longer notes tend to feel like cold outreach rather than genuine connection attempts.
Lifast writes LinkedIn posts sized for maximum impact, calibrated to the see more cutoff and optimized for engagement from the first character.
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Everything you need to know about post length, the see more cutoff, and LinkedIn's character limits across every field.
LinkedIn feed posts have a hard limit of 3,000 characters. If your post exceeds that, LinkedIn will not let you publish it. In practice, posts between 800 and 1,500 characters tend to perform well because they are long enough to tell a story or make a real point without overwhelming the reader. Keep your post under 3,000 characters total, but aim for the length your content actually needs, not the maximum.
LinkedIn collapses feed posts behind a see more link at approximately 210 characters on desktop and 140 characters on mobile. The exact cutoff can vary slightly based on line breaks and rendering, but those are reliable planning numbers. The first ~140 characters are the most critical part of any post because they are what every reader sees, on every device, before deciding whether to expand the post.
Your LinkedIn profile headline has a limit of 220 characters. This includes the default job title and company that LinkedIn fills in if you do not customize it. Your headline appears below your name in search results, connection requests, and feed posts, so it is one of the highest-visibility fields on your profile. Use the full space to describe what you do and who you help, not just your job title.
There is no single optimal length, but data consistently shows that posts between 900 and 1,500 characters perform well for narrative and educational content. Very short posts (under 300 characters) can work for provocative one-liners or questions but usually generate fewer comments. Very long posts (above 2,000 characters) can work for detailed how-to content but require a strong hook to earn the scroll. The right length is the minimum needed to make your point clearly.
No. This character counter runs entirely in your browser. Nothing you type is sent to a server, stored, or tracked. The counter updates in real time using JavaScript on your device. Refreshing the page clears your text. You can safely use it to draft sensitive or private content.
Connection request notes are limited to 300 characters. That is roughly two to three short sentences. The most effective notes use the space to explain one clear reason for connecting and one sentence of relevant context, then stop. Filling all 300 characters with a pitch or a lengthy introduction tends to reduce acceptance rates. Keep it short, specific, and personal.