Convert MP4 to MP3
MP3 is the most compatible audio format and plays on every device.
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How to use MP4 to MP3
Three steps. No account, no upload, no waiting in a queue.
- 1
Select your MP4 file.
- 2
Choose quality if you want.
- 3
Select Convert and download your MP3.
Why use Tooldesk mp4 to mp3
Free, with no sign-up or daily limit
Files never leave your device
No watermark on your results
Works on phone, tablet and computer
What is MP4?
MP4 is the most compatible video format. It plays on phones, TVs, browsers and every social network. Best for sharing, uploading and playing anywhere.
Why convert to MP3?
MP3 is the most compatible audio format and plays on every device. Best for music, podcasts and voice notes.
Frequently asked questions
Are my files uploaded to a server?
No. Everything runs inside your browser, so your files never leave your device. Nobody — including us — can see them.
Is it really free?
Yes. There is no sign-up, no watermark and no daily limit. The site is supported by ads.
Why does the first conversion take longer?
The video engine (about 30 MB) downloads once, then your browser caches it.
Is there a file size limit?
Files up to about 1.5 GB work on most computers. Phones handle smaller files best.