AI TikTok caption generator
AI TikTok caption generator built for the For You feed
Generate short, punchy TikTok captions in your brand voice — hook-first and trend-aware — then auto-caption the video with on-screen subtitles, preview how it looks in the TikTok UI, and publish or schedule in one click.
From idea to posted in three steps
Start from a topic or idea
Describe your video or pull from a topic pipeline, and AI drafts a short, punchy TikTok caption in your brand voice — front-loading the hook in the first line so it lands the moment someone stops scrolling the For You feed.
Tune the hook, hashtags, and on-screen subtitles
Tighten the opening line, swap the call-to-action, and add discovery hashtags. Optionally auto-caption the video itself — VibeDay transcribes your clip and burns in on-screen subtitles, separate from the post caption, so it stays watchable with sound off.
Preview in the TikTok UI, then publish
See a platform-accurate preview with the caption and action-rail safe areas, so nothing important hides behind the like, comment, and share buttons. Then publish now or schedule — to TikTok and your other connected accounts.
Why creators choose VibeDay for TikTok captions
Hook-first, short by design
TikTok captions are brief and the video is the star — so VibeDay writes tight, curiosity-driving lines that add quick context instead of long paragraphs the feed truncates.
Your brand voice, every caption
Captions are grounded in your brand settings, not generic AI filler. The tone stays consistent across posts so your TikTok presence sounds like you.
On-screen video subtitles too
Beyond the post caption, VibeDay transcribes your clip and burns in on-screen captions — a big deal on TikTok, where most viewers watch on mute or expect synced text.
Part of create → preview → publish
Not a one-off caption widget. The caption is generated as you build the actual post, then previewed accurately and published or scheduled in one place.
TikTok caption FAQ
Does it write TikTok captions in my brand voice?
Yes. Captions are generated from your brand settings, so the tone, vocabulary, and style stay consistent with the rest of your content — not generic AI text. You can edit any draft before it goes out.
What's the difference between the post caption and on-screen captions?
The post caption is the short text shown under your video in the TikTok feed (with hashtags). On-screen captions are the subtitles burned directly into the video frame. VibeDay does both: it writes the post caption AND can transcribe your clip and burn in synced on-screen subtitles for sound-off viewing.
Can I edit, regenerate, or swap the hook?
Yes. Every caption is fully editable — rewrite the opening hook, regenerate for a fresh angle, adjust the call-to-action, or fine-tune the wording per platform before publishing.
Does it add hashtags?
Yes. VibeDay suggests relevant hashtags to help with discovery on the For You feed, and you can add, remove, or change them however you like.
Is it free?
No — VibeDay is a paid product with a 7-day free trial, then plans from $19/mo. There's no free standalone caption tool: captions are generated as part of creating and publishing your TikTok post, alongside on-screen subtitles, platform-accurate preview, and one-click publishing.
Put your TikTok captions on autopilot
Write hook-first captions, burn in on-screen subtitles, preview, and publish to TikTok — all in one place.