A desktop companion app for StreamSave that uses locally downloaded AI to caption speech in multiple languages, then translates the result into the language you want. Everything runs only on your own computer.
As a native desktop app, it goes beyond the browser's memory limits — processing even large files safely, entirely on your own machine.
Drop in a video or audio file and Whisper AI transcribes the speech into timed .srt/.vtt subtitles — right on your machine, no upload.
Translate the generated subtitles into another language in one step, so you can watch or share in the language you want.
Your files never leave your computer. Transcription and translation happen locally — nothing is uploaded to a server.
A native app streams audio through ffmpeg, so hour-long, multi-gigabyte files process without the out-of-memory crashes a browser hits.
A quick benchmark measures your PC and recommends the best Whisper model for the balance of speed and accuracy — models are downloaded once and cached.
It's a benefit for StreamSave Monthly, Yearly and Lifetime subscribers — no separate purchase. Your existing license unlocks it.
From a video file to translated subtitles in a few steps.
Download StreamSave STT from this page and open it on Windows or Linux (macOS is still in progress).
Enter the same StreamSave license key you use in the extension — it verifies your subscription period.
Drag in videos or audio, choose a model, the spoken language, and an optional translation target.
The app saves .srt/.vtt subtitles next to your file — translated if you chose a target language.
It's free with your plan. Don't have a subscription yet? See the plans — every paid plan includes it.