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Free LinkedIn Character Counter

Count characters for every LinkedIn field — posts, headlines, About, comments, connection notes. Live preview of the 210-character 'see more' cutoff.

Body of a LinkedIn feed post. The first 210 characters show before the 'see more' fold.

0 / 3,000 chars3,000 remaining0 words0 sentences0 lines
Feed previewfirst 210 chars before the 'see more' fold
Start typing to see how your post will appear in the feed before someone clicks 'see more'.
Tips for post
  • →Front-load the hook — the first 210 chars decide whether anyone clicks 'see more'.
  • →Keep paragraphs to 1–2 lines. White space is a feature, not waste.
  • →Posts in the 1,200–1,800 character range get the most dwell time in 2026.

Why this beats the generic AI prompt

Every LinkedIn limit, in one place

Posts (3,000), headlines (220), About (2,600), comments (1,250), connection notes (300), article titles (100), company taglines (120). Switch with one click.

Live 'see more' cutoff preview

Posts and About sections show a real-time preview of what appears before the 'see more' fold (210 / 370 chars). Catch hooks that get truncated before you publish.

Counts characters, words, sentences, and lines

Useful when you're writing to a tone target — short sentences for hooks, longer paragraphs for stories. All metrics update live as you type.

Field-specific tips

Each field shows tips tied to that limit — what to optimize for in a hook, an About section, a connection note. Built from what actually performs.

FAQ

What's the LinkedIn post character limit?+

3,000 characters per post. But the more important number is 210 — that's roughly what shows in the feed before the 'see more' fold on mobile. Your hook needs to land in that window.

What's the LinkedIn headline character limit?+

220 characters. That's the line under your name. Pack 2–3 keywords your audience would search for, lead with the value you provide, not your job title.

What's the LinkedIn About / Summary character limit?+

2,600 characters. Only the first 370 show before 'see more' on desktop (and even less on mobile), so front-load the most important information.

What's the LinkedIn comment character limit?+

1,250 characters per comment. Long, value-add comments outperform short ones in the algorithm — a comment that gets replies counts as much as a reaction on the original post.

What's the LinkedIn connection request character limit?+

300 characters for the optional note. Free accounts get a limited number of requests with notes per week; LinkedIn Premium increases that allowance.

Why does the 'see more' cutoff matter so much?+

Most LinkedIn users scroll the feed and only click 'see more' when the visible portion makes them curious. If your hook is buried below the fold, your post is effectively invisible. This counter shows you the cutoff in real time so you can rewrite hooks until they land within the window.

Is this character counter really free?+

Yes — fully free, no signup, no email. Runs in your browser; nothing is sent to a server.

Counting characters is step 1. Step 2 is writing them well.

PostMagnet helps you write posts in your voice that fit every LinkedIn limit naturally. Free plan available.

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