Free AI Subtitle Generator
No Watermark, No Login
Generate subtitles for any video instantly. Runs entirely in your browser — your video never leaves your device.
Subtitles in 3 simple steps
Upload Your Video
Drag & drop any video file. MP4, WebM, MKV, MOV supported. Up to 10 minutes free.
AI Transcribes
Whisper AI processes your video locally in your browser. No uploads, no servers, 100% private.
Export & Download
Edit subtitles inline, pick a style, then export as SRT, VTT, or TXT. No watermark, ever.
Drop your video here
MP4, WebM, MKV, MOV — up to 10 minutes on free tier
Drag & drop your video
or click to browse
Browser-based
Server uploads
Languages supported
Exports free
Frequently Asked Questions
Yes! The free tier includes unlimited SRT, VTT, and TXT exports with no watermark, no login, and no hidden fees. Videos up to 10 minutes are supported. 20 languages supported.
No. SubtitleAI runs 100% in your browser using AI (Whisper). Your video never leaves your device. We don't have servers to store videos — it's technically impossible for us to see your content.
SubtitleAI supports 20 languages including English, Spanish, French, German, Portuguese, Arabic, Japanese, Korean, Chinese, Italian, Russian, Dutch, Polish, Turkish, Indonesian, Bulgarian, Finnish, Ukrainian, Thai, and Vietnamese. Hindi and other Indic languages are coming soon.
SubtitleAI uses OpenAI's Whisper model, one of the most accurate speech recognition systems available. English transcription is highly accurate. For Hindi and other Indic languages, we use the larger Whisper base model for better accuracy. You can always edit subtitles inline after generation.
SubtitleAI supports MP4, WebM, MKV, and MOV video formats. These cover virtually all common video files from phones, cameras, and screen recorders.