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LinkedIn Post Formatter

Format LinkedIn posts with separate hook + body Unicode styles, blank-line boosters that survive mobile and a 210-char hook validator. Score your hook against 5 best-practice checks. Free and private.

What is the LinkedIn Post Formatter?

LinkedIn Post Formatter is built around the platform's specific quirks. The first 210 characters of every post are what readers see before clicking '…see more' — get the hook wrong and engagement collapses. Toollyz gives the hook its own Unicode style (bold by default) separate from the body, shows you exactly where the 210-character fold lands, and scores the first line against 5 best-practice checks (length ≤ 210, opens with a question/claim, contains a number, ≤ 1 emoji, talks directly to the reader). Body styling is independent — leave it plain for readability, or use sans-bold for executive headers. The blank-line booster uses U+2063 INVISIBLE SEPARATOR so LinkedIn mobile doesn't collapse empty lines. Hashtags get the same clean-block treatment as the Social Post Formatter. Real-time warnings flag posts over the 3 000-character LinkedIn limit and hashtag walls beyond the 5-tag sweet spot.

How to use it

  1. Write your post with the hook on the first line and the body below.
  2. Pick a hook style (bold by default) and an optional body style.
  3. Watch the 5-check hook score and the live 210-char hook fold preview.
  4. Add 3–5 niche hashtags, copy the formatted preview and paste straight into LinkedIn.

Benefits

  • Separate hook + body styles — bold the hook for stop-the-scroll headers without restyling the body.
  • Live '…see more' preview shows exactly what the first 210 characters look like before the fold.
  • Hook scorer with 5 checks (length, question/claim, number, emoji count, 'you' / 'your').
  • Blank-line booster using invisible separators so LinkedIn mobile doesn't collapse your breathing room.
  • Real-time warnings against the 3 000-char limit and hashtag walls beyond the 5-tag sweet spot.
  • Hashtag block builder with dedupe, lowercase and auto-`#` prefix.
  • Persists draft, hook style and body style in localStorage for one-click resume.
  • Runs 100% in your browser — drafts never touch a server.

Frequently asked questions

Why bold only the hook?

LinkedIn collapses everything after ~210 characters into '…see more'. A bold hook stops the scroll while the body stays readable in normal text. Bolding the whole post often reads as shouty.

What's the 210-character rule?

LinkedIn's mobile feed shows ~210 characters before truncating with '…see more'. Posts that resolve the curiosity gap before the cutoff get clicked through more reliably.

Does the bold trick work on the LinkedIn app?

Yes. We use Unicode Mathematical-Alphanumeric characters (𝐁𝐨𝐥𝐝, not <b>Bold</b>) so the formatting is part of the text and survives copy-paste into the LinkedIn web composer and mobile apps.

Are there accessibility concerns with the bold trick?

Yes — Unicode bold characters aren't always read correctly by screen readers, which may announce them as math symbols. For accessibility-first audiences, leave the hook plain and use a strong opening word instead.

What does the hook scorer actually check?

5 heuristic best-practice checks: 1) hook ≤ 210 chars, 2) asks a question or makes a claim, 3) contains a number, 4) at most 1 emoji, 5) uses 'you' / 'your' to talk to the reader. Higher score correlates with higher LinkedIn engagement in published studies.

Why 3–5 hashtags, not more?

LinkedIn's algorithm rewards 3–5 niche hashtags far more than long hashtag walls. We warn at 10+. There's no hard penalty, but the diminishing-returns curve is steep.

Does the blank-line trick break accessibility?

U+2063 INVISIBLE SEPARATOR is ignored by screen readers so the audio output is unchanged. Visual rendering gets the gap — the standard fix used by every social-scheduling tool.

Can I use this for LinkedIn newsletters?

Yes for the body, but newsletters use proper rich-text formatting in the LinkedIn newsletter composer. The Unicode bold here is for posts that paste into the regular share box.

What's the character limit on LinkedIn?

3 000 characters for a regular post. Articles and newsletters have no practical limit. Toollyz warns when you cross 3 000.

Is my draft saved anywhere?

Only locally — your draft, style choices and hashtag block save to localStorage on this device. Toollyz has no backend.

Will the formatting work on Sales Navigator or LinkedIn ads?

The Unicode bold characters render identically. Some ad formats may flag heavily-formatted text as spammy — use the bold-hook variant for organic posts and keep ads plain.

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