Extract Audio from Video

No. The video is read locally and processed with WebCodecs inside your browser. Nothing is sent anywhere, which is why there is no file-size limit and no account.

Chrome, Edge and Firefox work best. Safari support for audio encoding is newer and more limited, so if a file fails there, try a Chromium browser.

MP3 for anything you'll share, upload or store — it's a fraction of the size and plays everywhere. WAV when the audio is a working file headed for editing or transcription, because it's uncompressed and loses nothing on the way out. A three-minute clip is a couple of megabytes as MP3 and roughly ten times that as WAV; unless you have a specific reason to keep it lossless, MP3 is the safe default.

If there's no audio track at all, there's nothing to pull out and the tool tells you rather than hand back a silent file. When a video carries more than one track — a second language, or a commentary — the first track is the one extracted, which is what most files put first anyway. Switchable-audio files are rare outside DVD and Blu-ray rips; a normal recording or download has a single track.

Extracting to WAV copies the decoded audio as-is, so it's an exact match of what was in the video. Exporting to MP3 re-encodes it, which is lossy — but the tool targets a high bitrate, and since the audio inside a video is already compressed, a well-chosen MP3 is indistinguishable from it for listening. You can't recover detail the original video never stored, so the ceiling is whatever quality the video was saved at.