MP4 to MP3 Converter

MP4 to MP3 Converter

This tool accepts MP4 files and returns MP3 audio. The picture is discarded entirely and only the audio stream is kept. MP3 is a lossy format, so audio that was already compressed inside the MP4 file is compressed a second time.

How to convert MP4 to MP3

1. Select or drag MP4 files into the upload area.
2. Confirm that the requested output format is MP3.
3. Start the conversion and review the status of each file.
4. Download each result once processing has finished.

Convert several files in one batch

The interface currently accepts up to 10 files per batch. Files are processed one after another; duplicates, mislabeled files and damaged files may be skipped or reported as errors.

File size after conversion

The result is usually several times smaller than the source video because the picture has been removed. How much smaller depends on the duration, the channel count and the bitrate of the original audio stream.

Check the result

Listen to a passage with background music and a passage with speech at the volume you normally use. Extracting audio cannot make the already-compressed source sound clearer.

Limits worth knowing

This tool changes the file format. It does not guarantee that every piece of metadata, every format-specific property or every embedded object survives the conversion. Keep the source file and test the result in the application where you plan to use it.

Frequently asked questions

Why does the result have no picture?

This is an audio extraction tool. The target format stores audio only, so the video stream is not written to the result.

Will the audio lose quality?

It can. Audio inside the source file is usually already compressed, and this conversion compresses it again.

Is my original file replaced?

No. The file on your device is left untouched.