Extract audio from video to MP3

Need to pull the sound out of a clip? This free video to MP3 converter lets you extract audio from any video and download it as an MP3 file in seconds. Drop in an MP4, MOV, MKV, WebM, AVI or any other video format and the tool removes the video stream and re-encodes the audio with high-quality libmp3lame encoding. Everything runs 100% in your browser using ffmpeg.wasm, so your video is processed locally and never uploaded to any server. It is perfect for saving music, podcasts, lectures, interviews or voice memos from a video as a portable MP3.

🔒 100% private — files never leave your device

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How to use

  1. Drag and drop your video file, or click to select an MP4, MOV, MKV, WebM or other video from your device.
  2. Click Extract Audio to pull the audio track and convert the video to MP3 right in your browser.
  3. Wait a moment while the in-browser engine processes your file; the progress percentage shows live.
  4. Download your MP3 audio file instantly — no account, no watermark, nothing uploaded.

Frequently asked questions

What video formats can I extract audio from?

You can load virtually any video format, including MP4, MOV, MKV, WebM, AVI, FLV and more. The tool reads the video's audio track and exports it, so as long as your file is a recognized video it will work.

What format is the extracted audio saved in?

The audio is always saved as an MP3 file, encoded with libmp3lame at high quality (variable bitrate, quality level 2). This gives you a small, portable file that plays on virtually any device or app.

Is my video uploaded to a server?

No. The entire conversion happens locally in your browser using ffmpeg.wasm. Your video file never leaves your device and is never uploaded, so your content stays completely private.

Is there a file size limit?

There is no fixed size limit imposed by the tool. Because processing runs in your browser, very large videos use your device's memory and CPU, so extremely long or high-resolution files may run slowly on lower-powered devices.

Why does the first conversion take longer?

On first use, the tool downloads the ~30 MB in-browser processing engine. After that it is cached and runs offline, so subsequent extractions start much faster.

Is it really free with no watermark or sign-up?

Yes. Extracting audio is completely free, with no account, no watermark and no usage limits. You can convert as many videos to MP3 as you like.

About this tool

Free online video to MP3 converter. Extract audio from MP4, MOV, MKV, WebM and more, right in your browser. No uploads, 100% private, unlimited and fast.

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