Free tool
Social media character counter
Paste your post once and see live character counts and limits for every major platform. Know exactly what fits, what's close to the limit, and what will get truncated — before you publish.
Type or paste once — every platform updates below in real time.
Platform limits
X (Twitter)
EmptyStandard post limit
Limit: 280 characters
Bluesky
EmptyPost limit
Limit: 300 characters
Mastodon
EmptyDefault instance limit
Limit: 500 characters
Threads
EmptyPost limit
Limit: 500 characters
LinkedIn post
EmptyFeed post limit
Limit: 3,000 characters
LinkedIn comment
EmptyComment limit
Limit: 1,250 characters
Instagram caption
EmptyCaption limit
Limit: 2,200 characters
TikTok caption
EmptyCaption limit
Limit: 2,200 characters
Facebook post
EmptyPost limit
Limit: 63,206 characters
Counts are Unicode characters. Some platforms count differently: X counts every link as 23 characters and most emoji and non-Latin characters as 2, and Bluesky counts graphemes — so posts near the limit may vary slightly from what the platform reports.
Related tools
More free utilities for the same workflow
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- Email Subject Line CheckerCheck your subject line and preview text against truncation limits for Gmail, Outlook, Apple Mail, and Yahoo Mail — desktop and mobile.Open tool
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FAQ
Character counter FAQ
Which platforms does this character counter support?
It covers LinkedIn, X (Twitter), Instagram, Facebook, Threads, Bluesky, Mastodon, TikTok, and YouTube community posts — with live counts and truncation warnings for each.
Do character limits include spaces and emoji?
Yes. Most platforms count spaces. Emoji and some special characters can count as more than one character (or as multiple code points), so this tool uses the same counting approach marketers use day to day — paste the draft you plan to post.
Why do posts get truncated even when under the limit?
Feeds often show a shorter preview than the hard character cap. LinkedIn and Facebook in particular cut early in the feed with a “see more” link. Aim for a strong first line even when the full post fits the platform maximum.
Is my draft stored or sent to a server?
No. Counting runs in your browser. Nothing you paste is uploaded, stored, or used to train models.
How should lean teams use this with AI-drafted social posts?
Paste each channel variant before you approve. AI drafts can overshoot limits or bury the hook. A quick character check keeps human approval fast without surprises after publish.
Let mktcrew write the post for you.
mktcrew's repurposer agent turns one article into platform-perfect posts for LinkedIn, X, Facebook, and more — then schedules them for your approval. You approve every post.
No credit card required · Cancel anytime · Full agent crew on Starter limits · Human approval on every live action
OAuth-only integrations · We never store platform passwords.