MP4 to MP3 Converter — Free Online, No Upload (Up to 2GB)

Q: What is the maximum file size?

The converter supports MP4 files up to nearly 2GB in size.

Convert MP4 video to MP3 audio in your browser

MP4 (MPEG-4 Part 14) is the most widely supported video container format, holding both video and audio in a single file. When you only need the sound — a song, a lecture, a podcast, or a voice note — you can strip away the video and keep a compact MP3 that plays on virtually any device.

This converter extracts the audio track from your MP4 file and saves it as an MP3. Everything runs locally in your browser, so your video never leaves your device and no account is needed.

How to use this MP4 to MP3 converter

Click Select MP4 File or drag and drop your video into the area below.
The conversion from MP4 to MP3 starts automatically — no extra buttons to press.
Your MP3 downloads automatically as soon as it is ready.

Convert your MP4 to MP3 now

Select MP4 File for Conversion

or drag and drop your MP4 file here to convert to MP3.

Why people convert MP4 to MP3

Save storage: an MP3 can be 90% smaller than the original video.
Listen on the go: build a music or lecture library for any audio player.
Easier sharing: smaller files send faster over email and messaging apps.
Privacy: your files are processed locally and never uploaded.

Frequently Asked Questions

Is this MP4 to MP3 converter really free?

Yes. The converter is 100% free with no limit on the number of files you can convert.

Are my files uploaded to a server?

No. The audio is extracted on your own device, so your MP4 never touches a server.

What is the maximum file size?

The converter supports MP4 files up to nearly 2GB in size — large enough for most videos.

Will converting to MP3 reduce audio quality?

MP3 is a compressed format, so there can be a slight quality reduction compared to lossless audio. The tool targets the highest practical quality.

Do I need to install any software?

No installation is required. The converter runs on any modern browser, including on smartphones and tablets.