MP4 to MP3
Convert MP4 to MP3 with this free online MP4 to MP3 converter. Extract the audio from a video at 128, 192 or 320 kbps, trim it and download. No upload.
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What next?
Found it useful? Share MP4 to MP3
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How to use MP4 to MP3
- 1Upload or drop a video file such as MP4, MOV or WEBM — it stays on your device
- 2Choose the MP3 bitrate (128, 192 or 320 kbps), stereo or mono, and optionally trim the start and end
- 3Click Convert to MP3, listen to the preview and download the MP3 file
Frequently asked questions
How do I convert MP4 to MP3 for free?▾
Upload the MP4 video, choose a bitrate and click Convert to MP3. The audio track is extracted and encoded to MP3 in your browser, then you can preview and download it.
Is my video uploaded to a server?▾
No. The audio is decoded with your browser's Web Audio API and encoded to MP3 locally, so your video never leaves your device and there is no upload wait.
Which MP3 bitrate is best?▾
192 kbps is a good balance for most audio. Choose 320 kbps for music where quality matters most, and 128 kbps for speech, lectures or podcasts to keep the file small.
Can I extract only part of the audio from a video?▾
Yes. Turn on Trim and enter the start and end time in seconds; only that part of the soundtrack is saved to the MP3.
Why can't my video be converted?▾
Some videos have no audio track, or use a codec your browser cannot decode. Try Chrome or Edge, or a file whose audio is AAC or MP3, which covers almost all MP4 videos from phones.
Embed MP4 to MP3 on your website▾
Paste this snippet into your page. The embedded tool runs in your visitor's browser and shows a small “Powered by clkr.work” link.