DataToolsLab
Audio & Video Tools

Extract Audio from Video

Pull the audio track out of a video file and download it as MP3 or WAV.

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What is Extract Audio?

A video-to-audio extractor for ripping the soundtrack from a recording, saving a lecture's audio, or grabbing a song from a performance video.

How it works

The video stream is discarded entirely and only the audio is decoded and re-encoded to the format you choose. The optional switch applies EBU R128 loudness normalisation during extraction.

  1. Load your file. Drag a file onto the drop zone or pick one from your device. It is read locally by the browser and never uploaded.
  2. Set the options. Adjust the handles, format, quality or threshold controls — the preview updates as you change them.
  3. Process and download. Run the tool, then download the result. Compare the reported before/after size for compressors and converters.

Examples

A 42 MB podcast episode → 9 MB MP3

Trim the intro, normalise to −16 LUFS, and export at 96 kbps mono — a typical interview lands around a fifth of the original size.

A phone video with the wrong orientation

Rotate 90° and the width/height swap in the output, so it plays upright in every player instead of relying on metadata flags.

Common mistakes

Expecting instant encoders

Video encoding runs in single-threaded WebAssembly, so a clip takes roughly its own length (or a little longer) to re-encode. Stream-copy operations are near-instant by comparison.

Re-encoding when a copy would do

Trimming, removing audio and joining same-codec clips can copy streams without re-encoding — pick the copy option when it is offered to avoid any quality loss.

Ignoring the first-load download

The media engine is about 31 MB and is fetched on first use, then cached. The first conversion on a connection is slower than every later one.

Frequently asked questions

Is this faster than converting the whole video?

Yes. Only the audio stream is touched, so a long video extracts quickly even though the engine is single-threaded.

What if the video has no audio?

You will get a clear error from the engine — there is nothing to extract from a silent clip.

Which format keeps the best quality?

WAV or FLAC are lossless and ideal for further editing. MP3 at 192–320 kbps is fine for listening and sharing.

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