Convert MP4 to MP3
MP4 is the most widely supported video container, normally holding H.264 video alongside AAC audio. Converting it to MP3 gives you a file suited to music, podcasts and voice recordings.
FilesMagic engine
Choose a MP4 file — up to 25 MB
How to use it
- Choose your MP4 file, or drag it onto the upload area.
- Select MP3 as the output format.
- Press convert and wait while the file uploads and is converted.
- Download the MP3 file.
About the formats
About MP4
MP4 is the most widely supported video container, normally holding H.264 video alongside AAC audio. It is normally used for video for the web, phones, editing software and social platforms. It is a container rather than a codec, so an MP4 can still hold streams a given player cannot decode.
About MP3
MP3 compresses audio by discarding sound the ear is least likely to notice, and plays essentially everywhere. It is normally used for music, podcasts and voice recordings. Compression is lossy, so audio detail removed on encoding cannot be recovered.
What to expect
- Up to 5 minutes and 1080p.
- The video track is discarded; only audio is kept.
- MP3 is a lossy format, so some audio detail is lost.
What happens to your file
Your file is uploaded to FilesMagic's own conversion servers over an encrypted connection, converted there, and deleted as soon as the download has been sent. We do not keep copies, and we do not log file names or file contents.
Questions
Is my file uploaded anywhere?
Yes. Converting this format needs software that cannot run in a browser, so the file is uploaded to FilesMagic's own servers, converted, and deleted once your download has been sent.
Does converting MP4 to MP3 reduce quality?
Both formats compress by discarding detail, so re-encoding loses a little more. Converting once is fine; repeatedly converting the same file back and forth is what degrades it.
How big a file can I convert?
Files can be up to 25 MB, and video is additionally limited to 5 minutes and 1080p. Converting video is demanding work, and those limits are what keep it fast for everyone.
Does the video come through as well?
No. MP3 is an audio-only format, so the video track is discarded and only the sound is kept. That is normally the point of this conversion.