MP4 to MP3 Converter
Convert MP4 to MP3 in your browser. Pick 128–320 kbps, convert many videos at once and download a ZIP. Free, fast and private — your videos are never uploaded.
- No upload — 100% private
- Instant, on your device
- Free, no sign-up
- Works offline once loaded
How it works
How to use MP4 to MP3 Converter
Drop your MP4 files — one or many.
MP3 at 192 kbps is preselected; raise it to 320 kbps for music or lower it for speech.
Click Convert to MP3.
Download the MP3, or all files as a single ZIP.
Why use it
Why use our MP4 to MP3 Converter tool
Real MP3 files
Encoded with the LAME MP3 encoder at constant bitrate, so the result plays in every car stereo, phone and media player.
Batch conversion
Convert a whole folder of MP4 clips in one go and save the results together as a ZIP.
Fast, even for big videos
Only the audio track of the MP4 is decoded — the picture is skipped entirely.
No upload, no sign-up
Everything happens in your browser tab. No watermark, no limits on the number of files.
FAQ
Frequently asked questions
What bitrate should I choose for MP3?
192 kbps is a good default for music, 256–320 kbps if you want the best quality, and 96–128 kbps for podcasts, lectures and voice recordings.
Why does my MP4 show 'No audio could be read'?
The video may have no sound track, or it uses a codec your browser can't decode (some cameras record PCM or AC-3 audio). Try Chrome or Edge, which support the most codecs.
Can I convert MP4 to MP3 on my phone?
Yes, it works in mobile Chrome and Safari. Long videos need a lot of memory once decoded, so convert them one at a time on older phones.
Is it really free and private?
Yes. There are no accounts or limits, and your MP4 files are processed on your own device — they are never uploaded.
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