ConvertoFiles

Convert MP4 to MP3 Online — Free

Extract audio from MP4 video files and save as MP3. Perfect for saving music or podcasts from videos.

Drop your MP4 file here

or click to browse • Accepts .mp4 files

⚡ First load may take a few seconds (loading FFmpeg engine)

Your files are processed locally and never leave your device

How to Convert MP4 to MP3

1

Upload your file

Click the upload area above or drag and drop your MP4 file. You can also paste from clipboard.

2

Adjust settings (optional)

Configure output quality, resolution, or other settings. The defaults work great for most files.

3

Download your MP3 file

Click "Convert" and your file will be processed instantly. Click "Download" to save your converted file.

What is MP4?

MP4 is a widely used file format. Converting MP4 to MP3 allows you to use your files across more platforms and applications. ConvertoFiles makes this conversion fast, free, and completely private — your files never leave your device.

Frequently Asked Questions

Is it free to convert MP4 to MP3?
Yes, ConvertoFiles is completely free with no limits. No signup or account is required. Convert as many files as you want.
Are my files safe and private?
Absolutely. Your files are processed entirely in your browser using your device's processing power. Nothing is ever uploaded to our servers. Your data stays on your device.
Is there a file size limit?
There is no file size limit. Since processing happens on your device, the only limitation is your device's available memory (RAM).
Do I need to install anything?
No. ConvertoFiles works entirely in your web browser. No downloads, no plugins, no browser extensions needed. Just open the page and convert.
How fast is MP4 to MP3 conversion?
Conversion is nearly instant for most files. Since everything happens locally on your device, there's no upload or download time — just pure processing speed.

Privacy First

Processed in your browser
No server uploads
No signup required
No file size limits

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