Converting mp4 to mp3 means pulling the audio out of a video file, so you are left with a small MP3 that plays on any phone, speaker, or music app. If you have a lecture, a song, or a voice memo saved as a video, the box above gives you just the sound in a few seconds, free, with no account needed.
How to convert mp4 to mp3
- Drop your MP4 file into the box above, or tap to choose it from your phone or computer.
- Wait a few seconds while the box above pulls out the audio track and turns it into an MP3.
- Download the MP3 to your device, ready to play or share.
When you’d want just the audio
- You recorded a lecture, sermon, or meeting on video but only need to listen to it later.
- A song or performance was shared as a video, and you want just the audio for offline listening.
- Your phone’s storage is full, and an MP3 takes up far less space than the video it came from.
- You want to move the sound from a video into a podcast app or music player that does not handle video files.
What this mp4 to mp3 converter gives you
You get a plain MP3 file with the same audio that was already in your video, nothing added, nothing cut out. There is no watermark, no Toolsitz branding in the file, and no account to set up. The tool works on MP4 files of any size your browser can upload, and it works the same way on a phone or a computer.
Once your MP3 is ready, you do not need to worry about the video you uploaded. It is deleted from our servers within an hour, so no copy of it sits around after you have what you came for.
Questions people ask
Is mp4 to mp3 conversion free on Toolsitz?
Yes. The tool on this page is free to use, with no sign-up and no limit on how many files you convert.
Is this mp4 to mp3 converter safe to use?
Yes. Your video is only used to pull out the audio, and it is deleted from our servers within an hour. Nobody else sees or gets a copy of your file.
How long does it take to convert mp4 to mp3?
Most videos convert in well under a minute. Longer videos take a little more time, but the download link appears as soon as it is ready.
Does mp4 to mp3 conversion change the sound quality?
No. The tool takes the same audio track that is already in your video and saves it as an MP3, so the sound stays as it was.
What happens to my video file after I upload it?
It is used only to create your MP3, then deleted from our servers within an hour. We do not keep a copy or share it with anyone.
Can I use this on my phone without an app?
Yes. The box above works in your phone’s browser, so there is nothing to install.
Updated 25 September 2026.