Extract Audio from Video Online

Not if you take the quick route. Quick extract copies the audio stream out of the container untouched — the AAC inside an MP4 arrives as AAC, bit for bit what the camera or the editor put there, in a couple of seconds regardless of the film's length. Converting instead gives you MP3 or WAV and costs one generation of quality, which is worth it only when the thing you are handing the file to cannot read the original codec.

Quick extract copies the audio stream directly from the video without re-encoding. This is the fastest method and preserves original audio quality. For example, extracting AAC audio from an MP4 file gives you an M4A file with identical quality.

Keep it when the file is going into further work — an editor, another tool here, an archive — because copying costs nothing and loses nothing. Convert when the file is going to a person or a device: MP3 opens everywhere without a question, while the AAC or Opus that came out of a phone video occasionally does not. Converting twice is the thing to avoid, so decide once and take the copy if you are unsure.

This tool works with video files on your device. You need to first download the video file, then use this tool to extract the audio.

Some formats like MKV, AVI, WMV, and FLV are not natively supported by browsers for playback. The preview will show a placeholder, but audio extraction will still work correctly.

Yes! Enable the "Extract portion only" option and set start and end times. This is perfect for extracting a specific song, dialogue, or sound effect from a longer video.