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MP4 to MP3— Free & Private

Extract audio from video files and save as MP3, entirely in your browser.

Processed in your browser. Nothing uploaded.

Drop a video file here or click to browse

MP4, MOV, AVI, etc.

All processing will happen in your browser. No files are uploaded.

What Is MP4 to MP3 Conversion?

MP4 to MP3 conversion extracts the audio track from a video file and saves it as a standalone MP3 audio file. This is useful for saving music from video recordings, creating podcast clips, or listening to lecture audio on the go without the video. Our converter processes the extraction entirely in your browser using WebAssembly-powered technology, so your video files never leave your device.

How to Use MP4 to MP3

  1. Upload your video

    Select an MP4 video file from your device or drag it into the converter.

  2. Choose audio quality

    Select the desired MP3 bitrate (128kbps, 192kbps, or 320kbps).

  3. Extract and download

    Click Convert to extract the audio track and download the MP3 file.

Why Use Our MP4 to MP3 Converter?

Runs in your browser — no video files uploaded to a server
Multiple bitrate options for different quality needs
Fast extraction powered by WebAssembly
Preserves original audio quality at matching bitrates
No file duration or size limits imposed
Works with any MP4 video file
Free with no sign-up or watermarks

Frequently Asked Questions

What audio quality should I choose for MP3 output?

128kbps is suitable for spoken content like podcasts. 192kbps provides good quality for music. 320kbps is the highest quality and best for archiving audio.

Can I extract audio from video formats other than MP4?

This tool is optimized for MP4 files. Other formats like MOV, AVI, or MKV may work depending on their codec, but MP4 offers the most reliable results.

How long does it take to convert a video to MP3?

Conversion speed depends on the video duration and your device's processing power. A typical 5-minute video converts in a few seconds on modern hardware.