TikTok Caption Character Counter
Just type your caption, watch the count update, know before you post whether it's going to get cut off. A simple tool, but the numbers behind it trip people up more than you'd expect — TikTok's actual character limit isn't one single number anymore, and where your caption gets visually truncated is a completely different limit from where TikTok stops accepting characters at all.
The limits, unconfused
TikTok's caption field has been expanded twice: originally capped at 300 characters, then raised to 2,200, then again to a much larger ceiling as the platform leaned harder into being a search engine rather than just a video feed. Right now you have a lot of room to work with in the caption box itself.
But here's the part that actually affects how people experience your caption: on screen, under the video, only the first line or two shows before TikTok truncates it with a "...more" link — that's roughly 80–100 characters, depending on font size and device. Everything after that is invisible unless someone taps to expand it. So there are really two limits to think about:
- The hard limit — how much TikTok will let you type at all.
- The visible limit — the ~80-100 characters someone sees without tapping anything.
This counter tracks both, so you can see not just "will this fit" but "will the important part of this actually be seen."
Why the visible limit matters more than the hard one
Most viral TikToks don't max out the caption field — plenty of top-performing videos run short, punchy one-liners. Long captions have a real use case (adding search-friendly context, telling a longer story, listing steps in a tutorial), but if your hook or call-to-action lands after character 100, most scrollers will never see it. The practical move: front-load whatever matters — the hook, the question, the CTA — into that first visible line, and treat everything after as bonus context for people who tap through.
What else eats into your character count
Hashtags and @mentions count toward your total caption length, not separately. If you're using TikTok's search-optimization angle (writing keyword-rich captions so your video surfaces in TikTok search results, which a large share of younger users now use instead of a traditional search engine for some queries), that's a legitimate reason to write longer — just don't bury your hook doing it.
For general guidance on writing clearly within a limited space, the Purdue Online Writing Lab, maintained by Purdue University, is a widely cited academic resource on concise, effective writing.