TikTok Caption Generator
Generate hook-first TikTok captions with AI — 5 short options under 150 characters with hashtags, plus an optional trending-sound placeholder.
About the TikTok Caption Generator
TikTok captions work differently from Instagram's: viewers see them over the video while it plays, so the best ones are short, hook-first, and add context or tension the video itself doesn't spell out. This free AI TikTok caption generator writes five options built exactly that way.
Describe your video, pick a tone — gen-z, funny, dramatic, wholesome or educational — and the AI returns five captions of 150 characters or fewer, each opening with a scroll-stopping hook and ending with one or two relevant hashtags. Turn on the trending-sound toggle and each caption includes a "[trending sound]" placeholder you can swap for the actual sound name.
Every caption shows a live character count, and one click copies it to your clipboard. Regenerate as often as you like — it's free with no signup.
How to Use the TikTok Caption Generator
- 1Describe what your video shows or teaches.
- 2Pick a tone, and optionally enable the trending-sound placeholder.
- 3Click Generate captions and compare the five hook-first options.
- 4Copy your favourite and paste it when you post.
Frequently Asked Questions
How long should a TikTok caption be?
TikTok now allows very long captions (up to 4,000 characters), but short still wins for most content: captions display over the video, and 100-150 characters is the sweet spot where the hook is readable in a glance. This tool keeps every option at 150 characters or fewer.
What is a hook in a TikTok caption?
The first few words that give someone a reason to keep watching — a bold claim, an open question, or a "wait for it" setup. Because TikTok decides within seconds whether viewers stay, a caption hook that creates curiosity measurably lifts watch time.
How many hashtags should I use on TikTok?
2-4 relevant hashtags is the common recommendation. Hashtags on TikTok act as topic labels for the recommendation system more than as search entries, so specific tags that match your content beat generic ones like #fyp — though adding one broad tag doesn't hurt.
What does the trending-sound placeholder do?
When enabled, each caption includes the literal text "[trending sound]" positioned naturally in the sentence. Mentioning the sound you used is a common engagement pattern on TikTok — replace the placeholder with the actual sound or artist name before posting.
Is the caption generator free?
Yes — free with no signup. Your video description is only used to generate the captions and is never stored.