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MP4 to MP3 Converter

Free MP4 to MP3 converter. 100% in your browser — nothing uploaded.

100% in your browser — your files never leave this device

🎬 Extract Audio from Video

Pull the soundtrack out of any video as MP3 or WAV.

Drop a video here or click to browse

MP4, WebM, MOV…

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How to convert MP4 to MP3

  1. Tap choose files (or drag and drop) and pick your MP4 file.
  2. FilesFi pulls out the sound track as an MP3.
  3. Press convert and download your MP3. That's it — nothing is uploaded anywhere.

MP4 vs MP3

MP4: MP4 is the universal video format — it plays almost everywhere, from phones and TVs to social media.

MP3: MP3 is the most compatible audio format — it plays on every phone, car stereo, computer and app.

Questions

Is it free to convert MP4 to MP3?

Yes. FilesFi is free with no signup and no watermark.

Are my files uploaded?

No. The conversion runs entirely inside your browser, so your files never leave your phone or computer.

Why convert MP4 to MP3?

MP4 is the universal video format — it plays almost everywhere, from phones and TVs to social media. MP3 is the most compatible audio format — it plays on every phone, car stereo, computer and app.

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