Safe zones
TikTok and Instagram guides, right in the editor.
TikTok & Reels captionsAnimated captions
Animated captions
for TikTok and Reels
Captions that keep people watching, placed where the app never covers them.
Caption my videoFree · 3 videos included · No credit card
HormoziBold popPayoffKaraokeNeonBold outlineTypewriter|MinimalClean Garamond
Why flysub
Captions made for the feed
Styles that stop the scroll
Hormozi, Karaoke, Neon: one click each.
Word-level timing
Highlight the key word, add an emoji.
How it works
Ready to post in three steps
1
Upload your videos
Up to 10 at once, with their language and a style.
2
Check the safe zones
TikTok and Instagram guides, right in the preview.
3
Post
An MP4 ready for TikTok, Reels and Shorts.
TikTok and Reels caption questions
How do I add captions to a TikTok video?
TikTok offers basic automatic captions in the app. For animated captions (highlighted words, emojis, viral styles), upload your video to flysub, pick a style, export the MP4 and post it on TikTok.
Do the captions work on Instagram Reels and YouTube Shorts?
Yes: the MP4 keeps the format of your vertical video, and the safe zones keep the captions clear of the TikTok and Instagram interface.
Which styles look like viral TikToks?
Hormozi (big bold capitals with highlighted keywords), Karaoke (each word lights up as it is spoken) and Neon, among 10 styles.
Which languages are supported?
Eight languages: English, French, Spanish, Portuguese, German, Italian, Dutch and Arabic, plus automatic detection. The language you pick is enforced at transcription for maximum reliability.
What is the maximum length per video?
3 min on the free trial, 3 min on Creator, 5 min on Pro and 15 min on Studio.
Is there a watermark?
Only on the free trial. Every paid plan exports without a watermark.
Go further
3 free videos
Ready to subtitle your next video?
Create your account, upload a video and see the result for yourself. No credit card.
Start for free