Fast offline transcription.
Import a supported local MP4 or MOV and generate editable captions with on-device Whisper. Review the text and timing before sharing. Initial model downloads need internet; transcription uses the installed model on your Mac.
Dynamic karaoke highlights.
Choose fonts, colors, backgrounds, borders, alignment and animation. Karaoke highlights use matching original word timings. Edited, translated or unmatched captions remain static.
Multi-language export & burn-in.
Translate saved captions with Apple's on-device Translation framework using language pairs available on your Mac. Language downloads may be required. Save captioned MP4/MOV videos or SRT/VTT subtitle files.
Review caption text, cue times and style. Save projects, reopen them later, and preview saved captions over your source video.
Export a new video in landscape, portrait or square format, or save a subtitle track. Video export re-encodes source audio as AAC and does not replace an existing destination.
Your audio, video and caption text are processed on your Mac. Initial speech and language downloads require internet. Apple may receive Translation API usage and performance metrics, subject to your system sharing choices, but not the original or translated text. See the privacy policy for details.