Offline transcription

Offline video transcription, no upload required

Most transcription tools send your video to a server. CaptionLab transcribes on your own computer instead — nothing is ever uploaded, streamed, or processed remotely.

Get CaptionLab — $39 once → See how it works
🛡 14-day refund · 🔒 100% offline · ⚡ One-time payment, no subscription

How offline transcription actually works

CaptionLab downloads a speech-recognition AI model (OpenAI's Whisper) to your machine once, then runs every transcription job using your own CPU or GPU — no network connection needed after setup.

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One-time local install

Python, ffmpeg, and the Whisper model download once (~3GB) directly to your Mac or PC.

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Runs on your hardware

Transcription uses your own processor (or NVIDIA GPU on Windows) — no server queue, no rate limits.

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Nothing uploaded, ever

Your video and audio files never leave your machine, before, during, or after transcription.

Who needs offline transcription specifically

Editors working with client footage under NDA, journalists handling sensitive source material, legal and medical teams, and anyone on a slow or unreliable connection — offline transcription removes the upload step entirely, which is often the actual blocker.

Frequently asked questions

Is offline transcription slower than cloud transcription?
It depends on your hardware, but with an Apple Silicon Mac or an NVIDIA GPU on Windows, local transcription is often comparable to or faster than uploading a large file and waiting in a cloud queue.
Does offline mean lower accuracy?
No — CaptionLab runs the same Whisper large-v2 model used by many cloud transcription services, just locally instead of on someone else's server.
What file formats does it transcribe?
CaptionLab works directly from your Premiere Pro timeline — any clip or sequence your project already contains.

Transcribe without the upload

One-time $39. Works offline. 14-day money-back guarantee.

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