Convert MP4 to MP3 — keep the sound
Lectures to replay on walks, music videos to keep as songs, voice notes trapped in video files — sometimes you want the sound, not the pixels. This extractor pulls the full audio track out of any MP4 (plus WebM and MOV) and saves it as MP3, WAV, or FLAC, locally in your browser. A quick note: it's built for your own files — lectures you recorded, clips you shot — not for ripping other people's content.
How to get MP3 from MP4
- 1Drop your MP4 on the tool above. It previews instantly and reads the audio track.
- 2Pick MP3 and bitrate. 192 kbps suits music; 128 kbps is plenty for speech like lectures.
- 3Hit Extract audio and download — the video stays behind, the sound comes with you.
Best audio extractions
Lectures → 128 kbps
Speech compresses beautifully. A 2-hour lecture at 128 kbps fits in ~110MB and sounds identical to the original.
Music → 192–320 kbps
Keep music videos musical — 192 kbps preserves the mix, 320 for your permanent collection.
Trim it after
Long extraction with dead air? Run the MP3 through our trimmer to keep just the good parts.
Frequently asked questions
How do I convert MP4 to MP3?
Drop the video above, pick MP3, hit Extract audio. The soundtrack is demuxed and encoded locally — no uploads, no waiting in server queues.
Is it legal to convert videos to MP3?
For your own recordings — lectures you attended, clips you shot, your own content — absolutely. Don't use it to rip copyrighted material you don't own.
What if my video has no sound?
The tool tells you straight away — silent clips, GIF-like loops, and muted screen recordings have no audio track to extract.
Can I extract from WebM or MOV too?
Yes — WebM, MOV, MKV, and M4V all work, as long as your browser can read them (Chrome and Edge cover nearly everything).
Do videos get uploaded?
No. Demuxing and encoding run entirely on your device — even multi-gigabyte files never leave it.