Why this tool is useful
Recover a speech, music or ambience track from a private video for editing, transcription preparation or waveform analysis.
Local File Tools · runs locally
Private Video Audio Extractor
Decode a browser-supported video's audio track and save it as a PCM WAV file without uploading the source video.
Ready. Your working data stays in this browser.
Files and capture streams stay on this device. Processing uses browser APIs only; nothing is uploaded to YTSave, the media API or a proxy.
How it works
Web Audio decodes the media track locally, applies bounded resampling and channel mapping, then writes interleaved 16-bit PCM samples into a WAV file.
Practical example
Select a short browser-playable video, extract 16 kHz mono audio and verify the duration, sample rate and output size before download.
Validation
The calculation is deterministic and explains validation errors instead of silently changing invalid input.
Privacy boundary
Input and output remain in this tab. Copy and download happen through browser APIs without a server upload.
Result passport
Every run reports its tool mode, timestamp and input/output size so transformed data can be audited.