Convert MP4 to MP3
Free and instant — your MP4 files are processed securely on our servers and deleted right after conversion. Nothing is stored.
How to convert MP4 to MP3
- Step 01
Add your MP4 files
Drop them into the box above or click to browse. You can add several files at once.
- Step 02
Conversion starts instantly
Your file is sent to our servers, converted and deleted right away — no sign-up, no queue, no waiting.
- Step 03
Download your MP3 files
Save each file individually or grab them all at once. Done.
Why convert MP4 to MP3?
MP4 to MP3 is one of the most common conversions there is — extracting just the audio track from a video file. We strip the video and keep only the sound, encoded as an MP3 you can play on any device, no video player required.
MP4 vs MP3 at a glance
MP4 is the universal video format — plays on every device, browser and platform without extra codecs. MP3 is the universal audio format — plays on every device and app since the late 90s, smaller than WAV with near-identical quality.
| Property | MP4 | MP3 |
|---|---|---|
| Extension | .mp4 | .mp3 |
| Full name | MPEG-4 Part 14 | MPEG-1 Audio Layer III |
| First released | 2001 | 1993 |
| Developed by | ISO/IEC JTC 1 | Fraunhofer IIS |
| Compression | Lossy | Lossy |
| Transparency | No | No |
| Animation | No | No |
| Best for | video sharing, streaming and playback on any device | music and podcast playback on any device |
MP4 to MP3 — frequently asked questions
Is this MP4 to MP3 converter really free?
Yes — completely free, with no sign-up, no watermarks and no daily limits.
Will I lose quality converting to MP3?
MP3 uses lossy compression, so the image is re-encoded at high quality (92%). For photos the difference is practically invisible; for text-heavy graphics or logos, a lossless format like PNG preserves sharp edges better.
Will the audio quality be as good as the original?
Yes — we extract the audio track and encode it at 192 kbps, indistinguishable from the source for most ears.
Does this work for music videos and lectures?
Yes. Any MP4 with an audio track — music videos, lectures, podcasts recorded on video, screen recordings — works the same way.
Is the conversion private?
Video conversion runs on our servers with ffmpeg — your file is deleted immediately and never stored.