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About extracting audio from video

Vidxt pulls the audio track out of a video file and saves it as a standalone MP3 or WAV. The original video is left untouched, so you can keep the visuals and use the audio separately for editing, archiving or transcription.

Extraction is fast because the audio stream is read directly from the container, then re-encoded only if the chosen output format requires it. That means no quality loss when you copy an existing AAC stream into an M4A, and predictable bitrates when you go to MP3.

Who this is for

  • Podcasters who recorded an interview on video but want to publish only the audio version on Apple, Spotify or their own RSS feed.
  • Musicians and producers grabbing a clean reference track from a live performance video or a rehearsal recording for further editing.
  • Editors and assistants who need separate audio to drop into a DAW for sound design, noise reduction or syncing across multiple camera angles.
  • Researchers and students saving lecture audio so they can listen on a phone or smart speaker without keeping the full video file.

How to extract audio

  1. 1Upload an MP4, MOV, AVI, MKV, WebM or FLV video. Drag and drop into the page or pick the file from your device; up to 2 GB on desktop and 500 MB on mobile.
  2. 2Choose an output format. MP3 is the most compatible and gives small files. WAV keeps the audio uncompressed for editing. M4A keeps the original AAC stream when possible.
  3. 3Start the extraction. Once it finishes, a download button appears. The output file is named after the original video, so you can keep track of which clip the audio came from.

Supported inputs and outputs

Inputs cover the everyday containers: MP4, MOV, AVI, MKV, WebM and FLV. Outputs are MP3 for compact universal playback, WAV for lossless editing, and M4A when you want to keep the original AAC audio without re-encoding it.

Nothing uploaded to a server

All decoding, demuxing and encoding happen inside the browser through FFmpeg compiled to WebAssembly. The video never leaves your device, and the resulting audio file is created locally too, which makes the tool safe for confidential or unreleased material.

Frequently asked questions

Will I lose audio quality during extraction?

Not if you pick a format that matches the source. Choosing M4A on a video with an AAC track copies the stream without re-encoding. WAV is lossless. MP3 re-encodes, but at 192 kbps or higher the difference is hard to hear.

Can I extract audio from several videos at once?

You can process files one after another in the same browser tab without reloading. There is no batch upload yet, but the queue model means you can drop a new file as soon as the previous one finishes exporting.

Why is the output much smaller than the video?

Most of a video file is image data. Audio typically accounts for a small fraction of the size, so a 1 GB video might produce a 60-120 MB MP3 at a comfortable bitrate, which is normal and not a sign of quality loss.

Does this work on a phone?

Yes. The browser tool works on iOS Safari and Android Chrome, with a 500 MB upload cap on mobile so the device does not run out of memory. For longer videos a laptop or desktop is the safer option.