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AI tool

TikTok caption generator

Describe your video and get TikTok captions that lead with the hook and end with a few relevant hashtags. Free, no sign-up.

AI can make mistakes, so read it before you post.

How it works

How to use it

  1. Describe your video

    What happens in it, in a sentence or two.

  2. Pick a tone and length

    Short captions suit most TikToks. Go longer for storytimes and tutorials.

  3. Copy one

    Paste it in when you post, and say the hook out loud in the first second too.

Tips

  • Say plainly what the video shows. TikTok reads captions to decide who sees it.
  • Skip tags like #fyp that don't say what your video is about.
  • Need tags only? Try the TikTok hashtag generator.

FAQ

Common questions

How long can a TikTok caption be?

Apps that post through TikTok's official tools can send up to 2,200 characters for a video caption (TikTok developer docs). Some guides say the app allows up to 4,000. Only the first line or two show over the video, so lead with the hook.

How many hashtags should I use on TikTok?

TikTok doesn't set a number. It says hashtags are one of the details it uses to recommend videos (TikTok newsroom). A few relevant tags is plenty.

Should keywords go in the caption?

Yes. TikTok lists captions, sounds and hashtags among the video details it uses for recommendations (TikTok newsroom), so say what the video is about in plain words.

Is it really free?

Yes. You can use the AI tools 10 times an hour and 25 times a day in total, without signing up. The limit keeps them free for everyone.

Which AI writes this, and do you keep what I type?

It runs on a DeepSeek model through OpenRouter, sent only to providers that keep no copy and don't train on it. We don't store or log what you type. To enforce the free limit we keep a counter tied to a scrambled version of your IP address, and it's deleted within 2 days. Details are in our Privacy Policy.