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Writing & Publishing tool

Social Post Length Checker

Count characters, words and lines, then compare your draft with an editable platform limit before posting.

Check social post length against common platform presets

Count characters, words and lines, then compare your draft with an editable platform limit before posting.

Characters0
Remaining280
Words0
Lines0
Limit used0%
StatusWithin limit

Social post character counter and length checker

Different publishing surfaces impose different text limits, and those limits can change as products evolve. This tool gives writers a fast pre-publish count for the standard X post, the longer X Premium post format and a LinkedIn post, while keeping the numeric limit editable.

What is counted

The character count uses Unicode code points rather than JavaScript's raw UTF-16 code units, which makes ordinary emoji counting more intuitive. Platform-specific counting can still differ for links, combined emoji sequences and other special content, so the platform's own composer remains the final authority.

Use the custom limit for campaign rules

Choose Custom when an ad field, scheduler, internal editorial policy or another social network uses a different maximum. The remaining-character and percentage indicators update as you type.

Length is not the same as performance

Staying under a technical limit does not make a post effective. Message clarity, audience relevance, opening context, visual assets, link treatment and accessibility still matter.

Frequently asked questions

Does this exactly reproduce how X counts every character?
No. It is a practical Unicode character counter. X can apply product-specific counting rules to links, emoji sequences and other special cases.
Why is the platform limit editable?
Social products and account capabilities change. An editable limit lets you use the latest verified rule or a campaign-specific constraint.
Does the tool upload my social post?
No. Counting is performed locally in the browser.
Can I use it for platforms not listed?
Yes. Select Custom and enter the character limit you need.