PrivateYour video never leaves your browser
AI Subtitle Generator
Our AI listens to your video and writes every word with millisecond timing. You just review, style and export.
Drop a video or audio file
MP4, MOV, WEBM, MP3, WAV · up to 10 min on Free · no signup
01
Upload
Drop a video or audio file. It never leaves your device.
02
Edit & style
Fix any word, pick a caption style, adjust size and position.
03
Export
Download SRT/VTT free, or an MP4 with captions burned in.
Word-level timing
Each word gets its own timestamp, which powers karaoke-style highlighting and keeps captions perfectly in sync with speech.
Automatic language detection
Speak in any of 30+ languages and the AI detects it automatically. Punctuation and capitalisation are added for you.
FAQ
Frequently asked questions
Which AI model do you use?+
We use state-of-the-art Whisper-class speech recognition models, with a backup provider for reliability, so transcription stays fast even at busy times.
How accurate are the captions?+
Very accurate for clear speech, using the latest Whisper-class speech recognition. Every word is editable, so you can fix names, jargon or slang before you export.
Is it really free?+
Yes. You can transcribe up to 30 minutes a day, edit your captions and download SRT, VTT or TXT files for free with no watermark. Exporting a video with burned-in captions is free at 720p with a small watermark; paid plans unlock 1080p, 4K and no watermark.
Is my video uploaded to your servers?+
No. Your video is processed entirely in your browser. Only a compressed audio track is sent for transcription, and it isn't stored afterwards.