Nothing is more annoying than writing a careful post, pasting it into X, and finding it is forty characters too long — or discovering that Instagram hides everything after the first line behind a “more” link. The Character Counter shows how your text measures up against several platforms at once, as you type, so you can fix it before you post.
The counts update immediately, and nothing is sent anywhere — it all runs in your browser.
Look for amber or red bars. X is the tightest for posts at 280 characters on free accounts, while Facebook allows far more than you will ever need.
Trim the text, or use the clean-up buttons to remove extra spaces, add line breaks, or change the capitalisation.
Copy it and paste it into the platform.
Instagram captions can run to 2,200 characters, but only the first line or two shows before “more”, so lead with the hook. LinkedIn posts allow 3,000 characters. TikTok has reportedly raised its caption limit from 2,200 to 4,000, with hashtags counting toward it. Facebook allows an enormous 63,206, though long posts are cut off in the feed well before that. On X, a link counts as a fixed length rather than its real length, which the tool takes into account.
Platforms change their limits from time to time, and the tool says when the figures were last checked. For anything critical, confirm in the platform’s own help pages. Emoji and some symbols can count as more than one character on certain platforms, so leave a little room when you are near a limit.
Check your next post before you publish it.