Auto subtitle generator
Generate subtitles for any video automatically. AI-powered transcription runs entirely in your browser. Download as SRT or burn into your video.
First time setup
This tool downloads a 75–145 MB AI model to your browser. It only happens once. After that, subtitles generate offline in seconds.
Select video to generate subtitles
or click to browse: MP4, MOV, AVI, WEBM, MKV
Related tools
What this tool does
Generate subtitles for any video automatically, right in your browser, using AI transcription that never uploads your file anywhere. Download the result as an SRT file for platforms like YouTube, or burn the subtitles permanently into the video.
What to do next
Frequently Asked Questions
Is my video uploaded to a server?
No. Everything runs in your browser, your video never leaves your device.
Why does the first use take longer?
The AI model, 75 or 145 MB depending on your choice, downloads to your browser cache on first use. After that it loads instantly.
How accurate are the subtitles?
Very good for clear speech in English and major languages. For strong accents, technical terms, or noisy audio, expect some errors, always review and edit.
What's the difference between Fast, Accurate, and Pro?
Fast (Whisper tiny, 75 MB) is good for most clear recordings. Accurate (Whisper base, 145 MB) is a good middle ground. Pro (Whisper small, 241 MB) is best for accents, noisy environments, and non-English languages, but takes longer to process.
Can I generate subtitles in Amharic?
Amharic is supported experimentally. Accuracy is limited and results may need significant editing.
How do I add subtitles to YouTube?
Download the SRT file, then in YouTube Studio open your video, click Subtitles, then Add, and upload the file.
Can I edit the subtitle text before downloading?
Yes, review the generated subtitles and fix any mistakes before downloading or burning them in.
What's the difference between downloading SRT and burning subtitles in?
An SRT file is a separate subtitle file you can upload elsewhere. Burning subtitles in permanently overlays the text onto the video, so it plays with captions anywhere without needing a separate file.
Last updated: 2026-07-13