Extract Audio from MP4 — Convert to MP3 Online

How It Works

1. 1Upload your video by dragging it into the drop zone or clicking to browse.
2. 2The audio track is extracted and encoded as MP3 in your browser.
3. 3Click Download to save the resulting MP3.

About MP4 to MP3

Want just the audio from a video? There are many situations where the audio track is all you need — extracting background music from a video, saving the audio from a lecture or conference talk for listening on the go, pulling the soundtrack from a movie trailer, converting a video podcast to an audio-only format for your podcast player, or saving the narration from a tutorial. Upload your MP4, WebM, MOV, AVI, or MKV file and extract the audio track as an MP3 file with your preferred bitrate. Choose from 128 kbps for spoken word content and smaller files, 192 kbps for a good balance, or 256-320 kbps for music where quality matters most. The tool uses FFmpeg.wasm to decode the video container and encode the audio stream, running entirely in your browser via WebAssembly. No video files are uploaded to any server, ensuring complete privacy for personal recordings, copyrighted content, and confidential meeting recordings. The extraction process focuses on the audio stream, so even very large video files produce compact MP3 output.

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Frequently Asked Questions