Convert MP4 to MP3 Online — Free
Turn MP4 files into MP3 in your browser. No sign-up, no watermark, works on iPhone, Android, Mac and Windows — VidFlip launches soon.
Drop a video here or click to browse
MP4, MOV, WEBM, AVI, MKV, WMV, M4V & more · up to 2 GB · free
Why convert MP4 to MP3?
- Save a song, podcast or lecture from a video so you can listen without keeping the screen on.
- MP3 files are 5-10x smaller than the video — easier to store, share and email.
- Every music player, car stereo and smart speaker plays MP3; many don't play MP4 audio.
About MP4
MP4 is the most common video container on the web. It wraps H.264/H.265 video with AAC audio, and plays natively on every phone, browser and TV.
About MP3
MP3 is the universal audio format. Extracting the audio track from an MP4 to MP3 gives you a small file that plays on any device, in any app, from 2005 onwards.
MP4 to MP3 — FAQ
How do I convert MP4 to MP3 for free?+
Upload your MP4 to VidFlip, choose MP3 as the output format, and download the audio file. No account, no watermark, no software to install. The converter launches soon — join the waitlist above to be notified.
Does converting MP4 to MP3 reduce quality?+
Yes — MP3 is lossy, so converting always loses some data compared with the original AAC audio track. At 192-256 kbps the difference is hard to hear on normal speakers. Note that no converter can improve quality beyond the source.
Can I convert MP4 to MP3 on my iPhone?+
Yes. VidFlip runs in Safari, so there's no app to install and no file-size games with the Files app. Open the site, pick your video, choose MP3, and save the result straight to Files or your music library.
Is it legal to extract audio from a YouTube video?+
For content you own or that is licensed for reuse (Creative Commons, your own uploads, public domain), yes. Downloading copyrighted music or films you don't have rights to is not, regardless of the tool used. VidFlip only supports converting files you have the right to use.