Free MP4 to MP3 Converter
This MP4 to MP3 converter extracts the audio track from your video files and saves it as a standalone MP3, powered by Notie. It's ideal when you only need the sound, such as pulling a podcast episode from a recorded video or grabbing a lecture's audio. Everything happens online, with no software to install.
Free to start · No credit card required · Works on iPhone & Android
How to use the mp4 to mp3 converter
Upload your MP4 video
Add the MP4 file you want to extract audio from.
AI extracts the audio
Notie processes the video and pulls out the audio track as a clean MP3 file.
Download your MP3
Save the extracted MP3 file, ready to play, share, or transcribe.
Why use Notie's mp4 to mp3 converter
Free to use
Extract audio from your first videos at no cost, with no watermark.
Fast conversion
Most MP4 files convert to MP3 in well under a minute.
No quality loss
Notie preserves the original audio quality during extraction.
Works on any device
Convert MP4 to MP3 from your phone, tablet, or desktop browser.
MP4 to MP3 Converter FAQs
Why would I convert MP4 to MP3?
Converting to MP3 is useful when you only need the sound from a video, such as listening to a lecture as audio or saving a podcast that was recorded as a video file.
Does the audio quality stay the same after conversion?
Yes, Notie extracts the original audio track without unnecessary re-encoding, so the sound quality closely matches the source video.
Can I transcribe the MP3 after converting it?
Yes, once you have the MP3 file you can run it through our MP3 to text converter to get a written transcript.
Can I also compress the resulting MP3 file?
Yes, use our audio compressor tool afterward if you need a smaller file size for easier sharing.
More free tools
Get rid of manual notes — download Notie today
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