PrivateYour video never leaves your browser
Video Caption Generator
Animated, on-brand captions for vertical, square and widescreen video. Preview exactly what you'll 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.
What you see is what you export
The preview and the final video are drawn by the same engine, so captions land exactly where you placed them.
Works with any aspect ratio
Vertical 9:16, square 1:1 and widescreen 16:9 videos all keep captions inside safe areas, clear of platform buttons.
FAQ
Frequently asked questions
Which file types can I upload?+
MP4, MOV, WEBM and MKV videos, plus audio files like MP3, WAV and M4A. Free accounts can upload videos up to 10 minutes long.
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.
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.