Convert MP4 to MP3
MP4 video → MP3 audio: convert online for free. MP4 to MP3 conversion runs right in your browser — your files never leave your device.
Drop files here or choose them
You can also paste files with Ctrl+V
Files never leave your device
About the formats
- MP4 video
- Common video container, usually with H.264 video and AAC audio. Plays almost everywhere.
- MP3 audio
- The most widespread lossy audio format. Plays on almost any device.
How to convert MP4 to MP3
- Choose a MP4 video file or drag it onto the page.
- Check the settings and click Convert.
- Download the MP3 audio file when it is ready.
Frequently asked questions
Can I extract just the audio from an MP4 video?
Yes. Only the audio track is saved as MP3 and the video is dropped. You can pick the bitrate and mono or stereo.
Is converting MP4 to MP3 free?
Yes. Conversion is free, with no sign-up and no watermarks.
Are my MP4 files uploaded anywhere?
No. The conversion runs in your browser, so your files never leave your device.
Will the quality change when converting to MP3?
Quality depends on the target format and the settings you choose; lossy formats let you adjust the quality level.