Convert MP4 to MP3
Convert MP4 to MP3 online for free. Extract audio from video in seconds. No sign up, no watermark.
Drop your MP4 file here
Max 100 MB per file
How MP4 to MP3 conversion works
MP4 to MP3 conversion extracts the audio track from your video and re-encodes it as an MP3 file. The video stream is discarded, which typically shrinks the file by 80–95% — perfect for music, podcasts, lectures, and voice memos.
MP3 plays on virtually every device manufactured in the last 20 years: phones, cars, speakers, and computers. Upload your MP4, we pull the audio out at high quality, and you download a compact MP3 ready to keep or share.
Frequently asked questions
Is it free?
Yes, MP4 to MP3 conversion is completely free. No account required, no watermarks.
Are my files safe?
Your files are uploaded over encrypted HTTPS connections and automatically deleted from our servers 1 hour after download. We never store, share or analyze your files.
Are there limits?
Max 100 MB per file. For larger batches, process files one by one.