Social Post Length Checker

How to check the length of a post

1. Write or paste your post in the text box.
2. Read the counters at the top: characters, words, hashtags, mentions, links and emojis.
3. Look at Limits by platform. Each platform shows your count, its limit, a progress bar and how many characters are left or too many.
4. For LinkedIn, Instagram and YouTube descriptions, a second line tells you whether the start of your post is fully visible before the “…more” link, or where it gets cut.
5. Edit your text until every platform you’re targeting is within its limit. Clear empties the box.

Everything updates as you type, so you can write directly in the tool and copy the final version.

Character limits used by this tool

Platforms change their limits from time to time, and paid plans can raise them: X Premium subscribers, for example, can publish much longer posts. The limits above are the standard ones for a regular account.

How X counts characters

X does not simply count letters. It uses a weighted count: most characters of Latin, Greek and Cyrillic scripts count as 1, while Chinese, Japanese and Korean characters count as 2. Every emoji counts as 2, even a combined emoji such as a family or a flag. Every link counts as 23 characters, whatever its real length, because X shortens it. This tool applies the same rules, so a post that fits here fits on X.

Mastodon also counts each link as 23 characters, and counts a mention like @alice@example.social as just @alice. The other platforms are measured in characters as you see them, so an accented letter or an emoji with a skin tone counts once. Some platforms count certain emojis as 2 internally, so keep a small margin if your post is full of emojis.

The “…more” fold

Long posts are truncated in the feed. Instagram shows roughly the first 125 characters of a caption, LinkedIn roughly the first 210 characters of a post on desktop, and YouTube only the first lines of a description. The exact cut depends on the device, the screen width and the line breaks, so these values are estimates. Put your hook, key message or call to action before that point.

Search snippets

The last two rows are not social networks: they check a page title and a meta description for search results. Google doesn’t count characters, it cuts titles and descriptions by pixel width, so around 60 and 160 characters are safe targets rather than hard limits.