Extract Audio from Video
Pull the sound track out of a video and save it as an audio file, without uploading the video anywhere.
MP4, MOV, M4V, MKV, WebM and 3GP videos of any size (they are read in pieces). Files stay on your device.
How it works
- Choose a video file, or drop it on the page.
- Keep Original audio (no re-encoding), or pick MP3, M4A, WAV, FLAC or Opus.
- Click Extract and wait for it to finish.
- Preview the audio, then download it.
Original audio, or a new format
The default is Original audio (no re-encoding). The sound track is copied out of the video exactly as it was stored: AAC goes into an M4A file, MP3 into an MP3 file, Opus into an Opus or WebM file, Vorbis into OGG, FLAC into FLAC. Nothing is decoded, so quality is unchanged and even a long video finishes in seconds.
Choose MP3, M4A, WAV, FLAC, Opus or OGG in Output settings when you need a specific format. The audio is then decoded and encoded again, which costs a little quality for lossy formats, and the page tells you which of the two happened for each file. If the video uses a codec that has no audio container here (AC-3, for example), the output falls back to MP3.
Videos with more than one audio track
Many MKV and MP4 files carry several audio tracks: dubs in other languages, a commentary, a stereo and a surround mix. When a file has more than one, the page lists them with language, codec, channels and bitrate, and you pick the one to extract. The first track is selected by default.
Copying a chosen track works in every browser. Decoding a track other than the first needs the browser to decode that codec itself, which current Chrome, Edge, Safari and desktop Firefox do for AAC, MP3, Opus, Vorbis and FLAC; if yours cannot, the page says so and you can extract the original audio instead.
Large videos and what is supported
The video is never loaded whole. The page reads the file in small pieces from your disk and writes the audio as it goes, large results are held on disk instead of in memory where the browser allows it, so multi-gigabyte recordings work on a normal laptop. Several videos can be queued and downloaded together as a ZIP.
MP4, M4V, MOV, MKV, WebM and 3GP videos are supported, and so are plain audio files. AVI is not: convert it to MP4 or MKV first. A video without any sound track gets a clear message instead of an empty file.
Questions
Is my video uploaded?
No. The video is read from your disk by your browser and the audio is written on your device. Nothing leaves it, which is why there is no size limit apart from your own memory and disk.
Does extracting the audio lower the quality?
Not with Original audio (no re-encoding): the stored audio is copied bit for bit. Choosing another lossy format such as MP3 re-encodes it, which costs a little quality, so keep the original option unless you need that format.
Why does the output say M4A, OPUS or OGG instead of MP3?
Those are the containers that hold the video’s own audio codec: AAC in M4A, Opus in OPUS, Vorbis in OGG. Pick MP3 under Output settings if you need an MP3 file; the audio will be converted.
Can I extract audio from a screen recording or phone video?
Yes. MP4 and MOV files from phones, screen recorders and cameras are the common case. Their AAC audio is copied straight into an M4A file.
What happens with a video that has no sound?
The page tells you that the file has no audio track. Some screen recorders do not capture sound unless it is switched on; record again with audio enabled.
Can I pick one of several languages?
Yes. When a video has more than one audio track, a menu lists them with language and codec. Choose the one you want before you start.