AI caption and subtitle generator that adds captions to videos in seconds with no watermark
Turn a photo into a 12-second AI rap video with vocals and a beat
Stage
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Founded
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Based in
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Pricing model
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Paid
Pricing
Free: 30 minutes of captions per month, 1080p MP4 export up to 3 minutes, 8 caption styles, SRT/VTT/TXT downloads up to 30 minutes, free translation into 100+ languages. Pro: $6.99/month (limited-time price, normally $9.99) or $59/year, unlimited captions on videos up to 90 minutes, all 22 caption s
One video: $6.99 USD; Three-video pass: $15.99 USD ($5.33 per video)
Key features
Automatic speech transcription in 100 languages with automatic language detection
SRT, VTT and TXT subtitle file downloads
Free translation into 100+ languages
Copy caption style from screenshot functionality
Bilingual captions showing two languages simultaneously on Pro
Video processing entirely in browser with audio-only server transmission for privacy
Word-level timing synchronization for precise caption timing
AI-generated lyrics that you can edit before payment
12-second videos in 768P portrait MP4 format with vocals and beat
Private video delivery via email with download link
Duet mode for two performers with separate voices and lyrics
Create original invented characters without photos
Add names and personalized details to videos
Share videos via private link that expires after 30 days
No account required; pay once with one-time checkout
What makes it different
Fastest among 10 tested caption tools, 6.7× faster than CapCut and 4.7× faster than VEED
Highest accuracy with 5.7% word error rate in October 2026 accuracy test of 8 caption tools
Video stays entirely private with only audio sent for transcription
One-time payment with no subscription or automatic renewal
Fully editable lyrics before payment
Private delivery of MP4 files with no account needed