Do I need to upload my video?

No. SubsVideo works from your transcript and generates the timed caption file. You add that file to your video in YouTube, your editor, or any player — your footage never leaves your device.

What’s the difference between SRT and VTT?

Both are subtitle files. SRT is the most widely supported (YouTube, Premiere, most players). VTT (WebVTT) is the web-native format used by HTML5 video. SubsVideo exports both, so you’re covered everywhere.

How does the timing work?

Captions are paced to reading speed — measured in characters per second — and split into short, two-line cues. You can dial the speed up or down to match your audience and your cut.

Can I translate the subtitles?

Yes. The studio is built for 13 languages, so you can produce subtitle tracks for an international audience instead of leaving non-native viewers behind.

The caption generator on this page is free and runs entirely in your browser — no account, no watermark. The hosted studio adds transcription from audio, team libraries, and burned-in exports.

THE AI SUBTITLE STUDIO

Turn any video into perfectly-timed subtitles.

Paste your transcript and SubsVideo’s AI times it into clean, on-screen captions — styled, positioned, and ready to export as SRT or VTT. Add subtitles your viewers actually read, in minutes.

Caption a video See how it works

No sign-up · SRT + VTT export · 13 languages

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