AI caption and subtitle generator that adds captions to videos in seconds with no watermark
Turn any public webpage into a narrated MP4 video with AI
Stage
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Founded
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Based in
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Pricing model
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Freemium
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
Pay as you go with per-5-second credit pricing. Creator Monthly: US$29.99/month or US$14.99/month yearly (1500 rendering credits per month). Professional Monthly: US$79.99/month or US$39.99/month yearly (4400 rendering credits per month). Each 5 seconds costs 30 credits. Enterprise pricing available
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
Autonomous webpage reading and content extraction
8 art-directed visual presets plus custom style prompts
Duration control from 5 to 60 seconds in 5-second increments
Multilingual AI voices with voice previews
Synchronized SRT captions and subtitle export
Brand asset uploads up to 10 images of 8 MB each
Landscape 16:9 and portrait 9:16 aspect ratio support
Cloud background rendering with automatic credit refunds on failure
Deterministic frame-by-frame rendering on cloud workers
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
No desktop software installation required, runs entirely in browser
Intelligent content comprehension extracts core messages and hierarchy from webpages
Transparent per-5-second credit pricing with upfront cost estimates
Convert any public HTTP or HTTPS URL without login requirements
One-step localization into Spanish, Japanese, German, French or Chinese