Convert MP4 to MP3
Pull the audio track out of any MP4 video and save it as MP3 - lectures, music sessions, interviews, or memos recorded on video. The video never leaves your device.
100% local - your file is never uploaded
Drop your MP4 file here, or click to select
Supports video/*,.mp4
How to convert MP4 to MP3
- 1
Drop your MP4 file into the box above, or click it to browse
- 2
Click "Convert MP4 to MP3" to extract the audio track
- 3
Watch the progress bar - nothing is uploaded, so there is no waiting on a network
- 4
Download your MP3 file when the conversion finishes
Why convert MP4 to MP3?
Often the audio is all you need: a recorded lecture to listen to on a commute, a podcast episode delivered as video, a song from a live session, or an interview headed for transcription. Extracting MP3 gives you a small, playable-anywhere audio file - typically 90%+ smaller than the source video.
MP4
MP4 videos almost always carry an AAC audio track alongside the video stream. That track is what gets decoded and saved during extraction.
MP3
MP3 output plays on every device and imports into every audio app, making it the safest target for extracted audio.
Frequently asked questions
Is extracting audio from a video legal?
For your own recordings and content you have rights to, yes. For copyrighted material, extraction for anything beyond personal fair-use contexts may infringe - check the content's license.
How long does extraction take?
Extraction only decodes and re-encodes the audio track, ignoring the video, so it is fast - usually well under a minute even for long recordings.
Will the MP3 sound as good as the video's audio?
The extracted MP3 is encoded at a high bitrate from the original track, so for speech and typical music the difference is inaudible.
Need more options like other formats or quality settings? Use the full Extract Audio tool.