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Convert MP4 to MP3

FreeNo uploadNo signupWorks offline

Turn MP4 videos into MP3 audio – for lectures, interviews, music videos or voice memos recorded on your phone. Drop several videos at once; the soundtrack is extracted and encoded on your device, so nothing is uploaded.

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How to use MP4 to MP3

MP4 to MP3 – Extract the audio from MP4 videos as MP3. Free, no upload.
  1. Choose or drop your MP4 files.
  2. Pick the MP3 quality (192 kbps suits most uses).
  3. Click Convert to MP3.
  4. Play the result and download it.

Supported formats

  • Input: MP4
  • Output: MP3 (96–320 kbps)

How it works

Your browser reads the soundtrack out of the video and the LAME encoder – the reference MP3 encoder – turns it into an MP3, all on your device. The video itself is not changed or uploaded.

How to convert MP4 to MP3 on iPhone

Open this page in Safari or Chrome – no app needed.

  • Tap “Choose files”, then Photo Library to pick a video from Photos, or Browse to pick one from Files.
  • Keep 192 kbps (or choose another quality) and tap Convert to MP3.
  • Tap Download. The MP3 is saved to Files → Downloads, ready to share or open in any app.

How to convert MP4 to MP3 on Android

Open this page in Chrome or your phone’s browser.

  • Tap “Choose files” and pick the video from your gallery or file manager. You can select several at once.
  • Tap Convert to MP3 and wait – a short clip takes a few seconds.
  • Download the MP3; it is saved to your Downloads folder.

How to convert MP4 to MP3 on Windows and Mac

Drag MP4 files from File Explorer or Finder onto the page, or click “Choose files”. Convert a whole folder of videos in one batch and download the MP3s one by one or together as a ZIP. Nothing to install, and no upload – useful for work recordings and anything private.

What people convert MP4 to MP3 for

The soundtrack is often all you need:

  • Lectures and webinars – listen on the go, or send the audio to a transcription tool.
  • Zoom, Teams and Meet recordings – keep the meeting audio at a fraction of the video’s size.
  • Your own music, rehearsals and performances filmed on a phone.
  • Interviews and vlogs – reuse the audio as a podcast episode (then try Enhance Audio to clean it up).

Which MP3 quality should I choose?

192 kbps sounds identical to the original for almost all listeners. Choose 320 kbps for music you want to archive, or 96–128 kbps for speech to keep files small.

File size is set by the bitrate: about bitrate × 0.0075 MB per minute.
QualitySize per minuteBest for
320 kbps2.4 MBMusic you want to keep at the highest quality
256 kbps1.9 MBMusic, with a little space saved
192 kbps1.4 MBEveryday listening – the default
128 kbps0.96 MBPodcasts and casual music
96 kbps0.72 MBSpeech: lectures, meetings, interviews

Limitations

  • Up to 60 minutes and 500 MB per file.
  • Which input formats open depends on your browser: Chrome and Edge read the most formats.

Privacy

Files you choose are read into your browser’s memory and processed on your device; they are not uploaded to a server. Temporary download links are released after use, and the offline cache never stores your documents. More about privacy and limits.

Frequently asked questions

Can I convert MP4 to MP3 on my phone?

Yes. Open this page in your phone’s browser (Chrome on Android, Safari on iPhone), choose the video and download the MP3. Nothing is installed.

Can I convert several MP4 files at once?

Yes. Choose or drop as many videos as you like; each becomes its own MP3, and you can download them all as a ZIP.

Does converting reduce the audio quality?

The audio in an MP4 is already compressed (usually AAC), so it is encoded once more. At 192 kbps or higher the result sounds the same as the video for nearly everyone.

Can I convert a YouTube link?

No. This tool converts video files that are on your device; it does not download from websites. Only convert videos you have the right to use.

How do I keep only part of the audio?

Convert the video to MP3 first, then cut the part you want with the MP3 cutter.

Why is the MP3 silent or the video rejected?

The video may have no soundtrack, or use an audio format your browser cannot read. Try Chrome or Edge, which read the most formats.

Are my files uploaded?

No. The audio is decoded and processed in your browser, so recordings and videos never leave your device.

Is it free?

Yes – free with no signup, no watermark and no daily limit.

How long can a recording be?

Up to 60 minutes per file (and 500 MB). The whole recording is held in your device’s memory while it is processed, so very long files need a computer rather than an older phone.

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