You write a headline that finally captures what you do, hit save, and LinkedIn quietly chops off the last third of it. It happens to everyone, because almost every field on the platform has a hard ceiling and the editor rarely warns you before you cross it. Knowing those numbers ahead of time is the difference between a profile that reads cleanly and one that trails off mid-thought where it matters most.
This guide lists the LinkedIn character limit for the fields you actually edit, explains why the first two or three lines of anything you write carry more weight than the rest, and walks through how to compress a long bio or post down to size without flattening your voice. All figures are current as of 2026; LinkedIn adjusts limits occasionally, so treat them as a working reference rather than a contract.
Here are the limits worth memorizing. Where a field counts characters rather than words, that distinction matters: a character count includes spaces, punctuation, and emoji, so a 220-character headline is shorter than it sounds. If you want an exact count while you draft, paste your text into a character and word counter before you commit to it.
| Field | Character limit (as of 2026) |
|---|---|
| Headline | 220 |
| About / summary section | 2,600 |
| Post (text update) | 3,000 |
| Connection request note | 300 |
| Comment | 1,250 |
| Company Page tagline | 120 |
Two of these deserve a closer look because they do the most work for you: the headline, which follows you across the entire platform, and the About section, which is where an interested reader decides whether to keep reading or move on.
A character ceiling is only half the story. The more important constraint is the fold, the point where LinkedIn hides the rest of your text behind a See more link. Your About section can run to 2,600 characters, but a visitor sees only the first two or three lines before that link appears. A post can hold 3,000 characters, yet the feed collapses it after roughly the first 200. The headline is the rare field with no fold at all, which is exactly why it is so valuable.
This is attention economics in miniature. Nobody expands a summary that opens with "I am a results-driven professional with a passion for excellence." They expand one that opens with something concrete: "I help B2B SaaS teams cut churn by rebuilding their onboarding from the first click." Same person, same role, but the second version earns the click because it says something specific in the space the reader actually sees. Treat those opening lines as the whole message and everything below the fold as supporting evidence for the people who already decided to keep reading.
Your headline shows up under your name in search results, on your profile card, beside every comment you post, and in the little preview when someone hovers over your name. It is the most reused sentence you own on LinkedIn, and it fits in 220 characters. Waste none of them on your job title alone, because LinkedIn already displays your current role separately.
Recruiters and hiring managers search LinkedIn the way everyone searches everything: with keywords. If a recruiter looks for "product marketing manager fintech," the profiles that carry those exact terms in the headline surface first. So the practical move is to spend your 220 characters on the words people search for plus a sliver of specificity that sets you apart. A serviceable formula is role plus specialty plus the outcome you deliver. For example: "Product Marketing Manager | Fintech & Payments | Turning complex products into launches that convert." That reads naturally, carries three or four searchable terms, and still fits comfortably.
Resist the urge to stuff every keyword you can think of. A headline crammed with pipe symbols and buzzwords ranks no better and reads worse. Pick the two or three terms a recruiter in your field would actually type, and let the rest of your profile carry the long tail.
Most people write their first LinkedIn summary at three times the length they need, then paste it in and discover it either overruns the 2,600-character limit or buries the good part below the fold. The fix is not to write less from the start; it is to write freely and then compress deliberately. A few reliable moves:
The goal is a summary that stays under the ceiling while keeping its personality intact. This is the hard part of trimming: it is easy to cut a bio down to size by deleting everything with a pulse, and much harder to keep the voice that makes it sound like you. When you are staring at a block of text that is 400 characters too long and every sentence feels essential, an AI shortener built for this exact job helps. WordLimit trims text to a precise character or word target while preserving the core message and your natural style, so the compressed version still reads like something a person wrote rather than a summary run through a blender.
The connection request note is the one most people underuse. At 300 characters, it is short enough that a generic "I'd like to add you to my network" wastes the whole thing. Name the shared context, the group you both belong to, the talk you both attended, the article of theirs you read, and give one honest reason you want to connect. Two tight sentences beats a blank request every time.
Comments cap at 1,250 characters, which is plenty for a thoughtful reply but tight enough that a rambling one gets cut. Since your headline rides along under your name on every comment, active, substantive commenting is one of the quieter ways to get your positioning in front of people who have never visited your profile.
When you are polishing your profile or drafting a post, a simple loop keeps you out of trouble. Write the full version first without worrying about length, because self-censoring while you draft usually kills the best lines. Then check the length against the field's ceiling, front-load whatever needs to survive the fold, and compress the rest to fit. If you regularly work against limits on other platforms too, our word and character limits cheat sheet collects the numbers for the places people post most. And if LinkedIn is part of a broader job search, the same trim-to-fit discipline applies to your resume, which we cover in how long a resume should be.
As of 2026, the LinkedIn headline holds up to 220 characters. It appears under your name in search results, on your profile, and next to every comment you leave, so it is the single most reused piece of text on your account. Spend those characters on searchable keywords plus a specific outcome rather than on your job title alone.
The About (summary) section allows up to 2,600 characters as of 2026. Only the first two or three lines show before the See more link, so front-load the point you most want a reader to remember and treat the rest as supporting detail.
A LinkedIn post allows up to 3,000 characters as of 2026. The feed collapses it after roughly the first 200 characters with a See more prompt, so the opening lines carry the message and decide whether anyone reads the rest.
A connection request note is limited to 300 characters as of 2026. That is about two short sentences, so name the shared context and your reason for reaching out and leave the sales pitch for later.
LinkedIn's limits are not the obstacle; they are a useful nudge toward saying more with less. Write the version you actually mean, then trim it to the ceiling while keeping the voice that makes it yours. When the cutting gets hard, WordLimit shortens your text to an exact character or word count without stripping out the meaning, so your headline, summary, or post lands clean and sounds like you.
WordLimit
