TikTokTikTok Caption Generator
TikTok Caption Generator
built for virality
Upload your video and get hook-first TikTok captions tuned for short-form attention spans. Trending tone, viral pacing, 30 hashtags.
Upload your video
MP4, MOV, WEBM
Hook-first writing
Every caption opens with a pattern-interrupt hook designed to stop the scroll in the first 2 seconds.
Viral tone optimization
Casual, humor, trending — CaptionAI matches the voice of top-performing TikTok content automatically.
Niche hashtag mix
30 hashtags tiered by reach: mega volume for discovery, mid-tier for community, niche for conversion.