Feature · AI Captions
Captions made on your computer.
Whisper writes AI captions for your recording locally, in 17 languages with word-level timing. Edit the text, pick a style and burn them into the video.

What you get
What it does for you.
- 01
17 languages
English, French, German, Spanish, Japanese, Chinese, Arabic, Hindi and more, or let auto-detect pick.
- 02
Runs locally
Transcription happens on your computer. After a one-time model download, it works offline and your audio isn't uploaded.
- 03
Burned into the video
Captions render into the export with word-level timing. Need an SRT or VTT file? The onerec CLI can write one.
How it works
From take to finished video.
- 01
Record with audio
Record with your mic or system audio on.
- 02
Transcribe
Pick a model (Fast, Balanced or Accurate) and a language. The first run downloads the model.
- 03
Style and export
Fix any words, pick a caption style (Modern, Handwritten or Code), set size and position, then export.
FAQ
Questions, answered.
How accurate are the captions?
Whisper handles clear speech well in the supported languages. Accurate gives the best results and Fast is the quickest. You can edit any caption line before export.
Do captions require internet?
Only once, to download the model you pick: about 140 MB for Fast, 510 MB for Balanced or 1.1 GB for Accurate. After that, captioning works offline.
Can I export an SRT or VTT file?
Not from the editor, which burns captions into the video. The onerec command-line tool can write SRT and VTT files from the transcript.
Try it on your next take.
Free for macOS, Windows and Linux, with no time limit on recordings.