Caption Counter
Count a caption against every social platform's limit, see where it gets collapsed behind “more”, and check your hashtags.
Free No signup Runs in your browser — nothing uploaded
What it does
Caption Counter operates on the text you paste, line by line, and shows the result as you type. Nothing is sent anywhere and there is no length limit beyond what your browser will hold.
When you need it
The kind of tidying that is tedious by hand and error-prone in a spreadsheet: a list pasted out of an email, an export with inconsistent casing, a column of addresses with duplicates in it.
Limits and caveats
Line endings are normalised, and leading and trailing whitespace is treated as significant unless the tool says otherwise. Nothing is stored: reload the page and the text is gone. Everything happens in your browser, so the file never leaves your device.
How to caption counter
- Paste or write your caption.
- Every platform's bar updates as you type.
- Watch the truncation marks — the first line is what most people read.
Frequently asked questions
- Why does your count differ from another tool's?
- Two reasons, and both are us being right. Emoji and non-Latin scripts take more than one UTF-16 unit, so counting raw string length overcounts them; we count what a reader would call a character. And X counts every link as 23 characters however long it is, which we apply.
- What is the truncation warning?
- Most platforms collapse long captions behind a “more” link. Past that point your words are still there, but far fewer people read them — so put the hook first.
- Do my files get uploaded?
- No. This tool runs entirely in your browser, so the file never leaves your device.