extract audio

Files are processed by FFmpeg & Whisper compiled to WebAssembly, in this tab — nothing is uploaded, ever. Verify: DevTools → Network.

drop a file, or click to choose

audio or video · stays on your device

audio format

Strips the video stream and keeps the audio. M4A uses stream-copy (instant, no quality loss) when the source audio is already AAC; MP3 and WAV re-encode.