What is the Instagram bio character limit?

150 characters, and all of them are shown — a bio has no "more" link, so unlike a caption nothing is hidden. Line breaks and emoji count towards it, and an emoji counts as one character here even though it is stored as two. The name field above it is a separate 30 characters, and that one is searchable while the bio is not.

How long can a YouTube title be?

100 characters is what YouTube accepts, but that is not the number to write to. Search results, suggested videos and mobile feeds cut titles at roughly 70 characters, so anything after that is invisible in the places people decide whether to click. Write the title that earns the click in the first 70 and treat the remaining 30 as optional.

Where does Instagram cut off captions?

At about 125 characters, behind a "… more" link. The caption itself can run to 2,200, but only that first stretch appears in the feed, and most people never tap. Put the hook, the question or the offer inside 125 characters and use the rest for detail, credits and hashtags — the preview on this page shows exactly where the cut falls.

Do emojis count as one character?

On screen, yes — and this counter agrees with what you see. Underneath it is messier: most emoji are stored as two UTF-16 units, a flag is two code points, and something like 👩❤️👨 is six joined together. Some tools count those units and report a single emoji as two, six or eight characters. This one counts what a person would count, using grapheme segmentation, which is what the platforms show you in their own editors.

What is the TikTok caption limit?

4,000 characters. It was 2,200 for years and most guides still say so, which is worth knowing if you have been writing to the old number. The practical limit is much lower anyway: the caption sits over the video and collapses behind "See more" after roughly 100 characters, and text covering the video is competing with it.

SPatlas

Character Counter for Instagram, TikTok & YouTube – With Live Preview

Count characters the way the platforms do — an emoji is one — and see your text inside a mock-up of each app, including where the caption folds behind “more” and which part is past the limit.