CaptionLab transcribes your footage entirely on your own Mac or Windows PC. No upload, no cloud processing, no account — your audio and video never touch the internet.
Most auto-caption tools work by uploading your video to a server. That's a problem for a lot of real editing work.
Confidential footage — client cuts, unreleased trailers, corporate video — often legally can't be uploaded anywhere.
Depositions, medical interviews, and other sensitive recordings need to stay on a controlled machine.
On a plane, on set with no signal, or just on a slow connection — offline means it always works.
Under the hood, CaptionLab runs OpenAI's Whisper speech-recognition model locally, using your own Mac's or PC's processor (or GPU, on Windows with NVIDIA).
On first launch, CaptionLab downloads the AI engine (Python, ffmpeg, the Whisper model — ~3GB) directly to your machine.
Every transcription after that runs entirely offline. No network request, no server round-trip.
No telemetry, no analytics tied to your footage, no account required to use the plugin.
| Feature | Cloud transcription tools | CaptionLab |
|---|---|---|
| Footage leaves your machine | ✗ Yes, uploaded | ✓ Never |
| Works without internet | ✗ No | ✓ Yes, after setup |
| Recurring cost | ✗ Often $15+/mo | ✓ $39 once |
| Per-minute limits | ✗ Common | ✓ Unlimited |
One-time $39. Works offline. 14-day money-back guarantee.
Get CaptionLab →