MundoKit

Post Character Counter for LinkedIn Compatibility

Paste post text to inspect its length and Unicode counts. Adjust an illustrative preview budget to check your opening text.

Use this local tool with JavaScript enabled. Your inputs stay in your browser.

How it works

LinkedIn Help documents a 3,000-character post limit but does not define its Unicode counting algorithm. This tool shows UTF-16 units as a conservative compatibility estimate alongside code points and grapheme clusters. It does not claim empirically verified parity with the live composer. Remaining = 3,000 − UTF-16 units. No rounding is applied.

CRLF and CR line endings are normalized to LF, and each LF counts once. Spaces, hashtags and URL text count literally; no URL discount is assumed. The preview takes the first N grapheme clusters. Its initial 210-character budget is an editable illustration, not a claimed LinkedIn fold rule. Device, line wrapping, attachments and layout affect the actual See more position. Input is capped at 100,000 UTF-8 bytes.

Worked examples

Plain text

Hello world uses 11 UTF-16 units, 11 code points and 11 grapheme clusters, leaving 2,989 units in the compatibility budget.

Unicode diagnostics

A😀 uses 3 UTF-16 units, 2 code points and 2 grapheme clusters, leaving 2,997 units. With a preview budget of 1, only A appears before the illustrative ellipsis.

Frequently asked questions

Is this the exact LinkedIn emoji counter?
No. The official Help page gives the limit without Unicode semantics. Compare the diagnostics here and confirm the final text in LinkedIn’s composer.
What does a family emoji count as?
A family emoji joined with zero-width joiners may be one visible grapheme while using several code points and UTF-16 units. The diagnostic counts expose that difference.
Is the preview an exact See more prediction?
No. The budget is user-adjustable and illustrative; actual truncation depends on device and layout.
Do links and newlines count?
This tool counts literal URL text, spaces and normalized LF newlines. It makes no unverified URL-shortening allowance.
Can I use this for articles or messages?
The documented 3,000-character budget is for posts. Article and message limits are outside this tool’s scope.

Sources

Last reviewed 2026-11-14; next review due by 2027-02-12. The method is written out above so you can check our math.