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Dexta Studio

Extract Audio

Extract Audio pulls the soundtrack out of a video and saves it as an audio file — MP3, WAV, M4A or OGG. It's the quickest way to grab the music, dialogue or sound from a clip without the picture. The whole thing runs in your browser with FFmpeg, so your video is never uploaded.

01

Add your audio file

The file is read by your browser and stays on your device — there is no upload step.

02

Your audio

The work runs in this tab. Nothing is sent anywhere, and the download is generated locally.

Load a video

How to use Extract Audio

  1. 01
    Upload

    Add your video

    Drop an MP4, MOV, WEBM or other video in, or click to browse.

  2. 02
    Customize

    Choose a format

    Pick MP3 for a small, universal file, or WAV for lossless quality; M4A and OGG are also available.

  3. 03
    Process

    Extract

    Export to pull out the audio track and download it.

What do you actually need out of it?

Pulling the sound out of a video is one of the most common jobs on this site, and one of the easiest to over-complicate.

What you will get back

  • The original track, copiedbest quality

    Where the format allows, the audio stream is copied out of the container untouched — no re-encoding, so nothing is lost.

  • Or re-encoded to MP3most compatible

    Where you need a specific format, the track is re-encoded once. Starting from video audio that was already compressed, keep the bitrate reasonably high to avoid stacking losses.

  • As good as the source

    Video soundtracks are already compressed, often at modest bitrates. Extraction cannot recover what the camera or the platform discarded.

Supported formats

  • MP3
  • WAV
  • M4A
  • OGG
  • FLAC
Maximum file size —
bounded by your device's memory
Processed by —
FFmpeg (WebAssembly), on your device

Your file, and what the page does

Your file is never uploaded. Extract Audio reads it into this browser tab and processes it with FFmpeg compiled to WebAssembly on your own device. There is no upload endpoint in the application and no copy on any server — closing the tab discards it.

That is also why processing takes longer here than on a site that uploads: your device is doing the work rather than a rack of servers. The trade is that the file never leaves it.

What the page does send or fetch

The processing engine, once
The first time you use any video or audio tool, the browser downloads the FFmpeg WebAssembly build (~30MB) from the jsDelivr CDN and reuses the cached copy afterwards. That is a file coming to you — no part of your own file is in the request.
Ads on the page
The site is funded by advertising, so the page loads Google AdSense. That carries the usual web basics — IP address, browser, referring page — as on any ad-supported site.
An anonymous usage counter
When Extract Audio finishes we record that the tool ran, whether it succeeded and how long it took. No file data, no identifier, no cookie.

Your file is not on that list. How this works.

Frequently asked questions

MP3 is small and plays everywhere. Choose WAV for uncompressed, lossless audio, or M4A/OGG when a specific app needs them.

Extracting to WAV is lossless. MP3, M4A and OGG re-encode at a high 192 kbps bitrate, which is transparent for most material.

Any video with an audio track works — MP4, MOV, WEBM, MKV and more. A silent video has nothing to extract.

Yes — Extract Audio is completely free. There's no account, sign-up, watermark or limit.

No. It runs in any modern browser — Chrome, Edge, Safari, Firefox, Brave — with nothing to download or install.

Not sure extracting is what you need?

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