TikTok Character Counter — Caption & Bio Limit Checker

TikTok character limits

TikTok allows up to 4,000 characters in a video caption when you post natively in the app — though the TikTok API and schedulers (Buffer, Hootsuite, Later) still cap captions at 2,200, so that’s the safe ceiling if you don’t post by hand — and just 80 characters in your profile bio. Hashtags, @mentions, and emoji all count toward the caption limit, and because hashtags are essential for reach, every character matters. This tool counts your caption and bio live so you can fit your hook, hashtags, and call to action without getting cut off.

Writing a caption that performs

Even with thousands of characters, the feed shows only the first line or two before “…more.” Lead with a hook or question, then add context and hashtags below. Place your most important words and a few targeted hashtags early. Captions that invite a comment — a question or a bold claim — tend to earn the replies that boost a video in the algorithm.

Making the most of an 80-character bio

The bio is tiny, so every character has to work. Say what you do and who it’s for, add one clear call to action or link cue, and use line breaks or a single emoji to add structure. Because 80 characters fills up fast — especially with emoji, which count too — the live counter helps you trim to the essentials.

Private and instant

Type or paste your caption and bio to see exactly how many characters each uses and how much room is left. Everything runs in your browser, so nothing you type is uploaded. Adjust until both sit within TikTok’s limits, then copy them across.