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Social posts · 6 limits

Social media character limits: what counts and what shows

X allows 280 weighted characters. LinkedIn shows about 210 characters on desktop and 140 on mobile before “see more”, and Instagram about 125 before “more”.

Check all 6 at once

Last reviewed · How we measure

Social posts: every limit
ScreenLimitWhen it’s too longWhere the number comes fromReviewed
X (Twitter) postX280 charactersX won’t post it unless your account has a subscription that allows longer posts.Official limit · source
LinkedIn post (before “see more”, desktop)LinkedIn210 charactersCut on screen with “…”Measured on devices · source
LinkedIn post (before “see more”, mobile)LinkedIn140 charactersCut on screen with “…”Measured on devices · source
Instagram caption (before “more”)Instagram125 charactersCut on screen with “…”Measured on devices · source
TikTok caption (before “more”)TikTok90 charactersCut on screen with “…”Truncly model · source
YouTube description (before “more”)YouTube100 charactersCut on screen with “…”Truncly model · source

There are two different limits: what the platform accepts and what people see before they tap. The second one decides whether your hook lands.

X weights characters: every link it recognises counts as 23, and emoji and Chinese, Japanese or Korean characters count as 2.

TikTok and YouTube don’t publish where they cut a caption or a description, so those two screens are our own estimates (about 90 and 100 characters) and are marked that way.

Paid posts need a clear label, and a label after the “more” cut is easy to miss. Put #ad or your local label first. Truncly’s label check flags one that hides.

Other channels

Marketplace title limits, side by sideHow long can Google titles and descriptions be?How much of your subject line each inbox showsHow much of a push notification people actually seeSMS and WhatsApp template limits, explainedAd character limits for Google Ads and MetaApp Store and Google Play text limits
FAQ

Social posts: questions

How many characters show before “see more” on LinkedIn?

About 210 on desktop and 140 on mobile in device tests; the rest sits behind “see more”.

Do links count on X?

Every link X recognises counts as 23 characters, however long or short it is.

Where should I put #ad?

At the start of the post, where nobody has to tap “more” to see it. Truncly’s label check flags a label that sits after the cut on each screen and moves it to the start in one click. This helps you check. It isn’t legal advice.