Count against TikTok's real limits. The caption holds 4,000 characters — but your hashtags and @mentions count toward it, so this counter breaks those out for you. Free, instant, in your browser.
| Where | Limit | Note |
|---|---|---|
| Caption / description | 4,000 | Up from 2,200; hashtags + mentions included |
| Bio | 80 | One of the shortest bios anywhere |
| Username | 24 | Letters, numbers, _ and . |
| Comment | 150 | Per comment |
TikTok now gives you a generous 4,000-character caption — long, keyword-rich captions can help the post surface in TikTok search. But the in-feed view collapses everything after roughly the first line behind a "more" link (the exact cutoff varies by device), so lead with the hook. And remember: every #hashtag and @mention eats into the same 4,000 — the breakdown above shows how much.