Add Captions to YouTube Videos — Free Subtitle Generator
Upload a video, generate captions with AI, choose a style, and download the finished MP4.
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MP4 · MOV · WebM · up to 10 min, 250 MB
Transcription method
Caption style
Preview
Upload a video to see a live caption preview here.
Frequently asked questions
How do captions improve YouTube SEO?
YouTube indexes caption text for search, so adding accurate captions helps your videos rank for more keywords. Channels with captions see up to 7% more total views because the content is discoverable through caption text.
Should I burn captions in or upload an SRT file to YouTube?
Both approaches work. Uploading an SRT file lets YouTube display toggleable subtitles and improves SEO indexing. Burning captions in gives you full control over style and ensures they appear exactly as designed, which is better for Shorts and clips shared off-platform.
Does YouTube auto-generate captions? Why add my own?
YouTube's auto-captions are often inaccurate, especially with accents, technical terms, or multiple speakers. Custom captions ensure accuracy, look more professional, and give you control over timing and styling.
Can I use this for YouTube Shorts?
Yes. Upload your vertical Short, generate captions with AI, style them to your liking, and export. The tool handles any aspect ratio and resolution.