TikTok
A TikTok subtitle generator that keeps up with you.
Auto subtitles with word-by-word karaoke highlights and viral caption styles — no app install, no video upload.
TikTok is the fastest-scrolling feed there is. Viewers give you a second or two, often with sound off, and move on. Creators who caption everything aren’t doing it for accessibility alone — on-screen words are the strongest hook you can add without reshooting a single frame.
LumaCaption generates TikTok-style captions automatically: your speech becomes bold, word-timed text with one keyword per line popping in colour — the look you know from the biggest talking-head accounts. It works on your phone or your laptop, there’s nothing to install, and your video file never leaves your device.
Karaoke-style word pops
Words light up as you say them — the high-retention style TikTok made famous, without manual keyframing.
The keyword does the work
LumaCaption picks the most important word of each line and makes it pop. Disagree? Tap any word to star it instead.
Fast enough to post today
Captions start appearing while transcription is still running. A one-minute clip is styled and ready in a couple of minutes.
Works on your phone
The whole editor works on a phone. Caption a TikTok on the same device you shot it on.
How it works
Upload your clip
Straight from your camera roll or desktop. Vertical, square or landscape — everything works.
Choose your energy
Bold Hormozi-style pops, glowing gradients, clean minimal lines — 100+ styles, all unlocked from the first video.
Export and upload to TikTok
Burned-in captions travel with the video, so they look identical when you cross-post to Reels and Shorts.
Common questions
How is this different from TikTok’s built-in captions?
TikTok’s auto-captions are functional but generic — limited styling, no word-level emphasis, and they don’t follow the video when you repost it elsewhere. LumaCaption burns styled, word-timed captions into the video itself, so one export works everywhere.
Do I need to download an app?
No. LumaCaption works right on the web — phone or laptop. Sign in with Google and you’re captioning.
How long can my TikTok be?
Up to 5 minutes per video on the free plan, 30 minutes on Creator and 90 minutes on Pro — longer than anything TikTok will let you upload.
Does my video get uploaded to your servers?
No. Your video file stays on your device from start to export. With Candy Ultra, only the audio is sent for transcription; everything else our servers see is your account and billing details.