MP4 to MP3 Converter
Turn an MP4 into an MP3 in seconds. Free, no account, same file name.
The download link expires 1 hour after you download. Nothing is added to your file.
Drop an MP4 (up to 100 MB) and press Convert. You get an MP3 of its audio with the same name, at the bitrate the MP4's own audio supports, up to 192 kbps. Phone videos and Zoom recordings work as they are. No account and no ad before the download.
Why use MP4 to MP3?
Phone videos and meeting recordings
MP4 files from an iPhone, an Android phone, Zoom, Teams or OBS convert as they are. Portrait or landscape does not matter: only the sound is kept.
Small MP3, same sound
A 61 MB, 3-minute 1080p MP4 became a 4.3 MB MP3 at 192 kbps. The picture is what made the file big; the audio is kept.
Transcript of the same file
Need the words from a meeting or a lecture? Ask for the transcript after the conversion: the first 30 minutes are free without an account.
How it works
Choose the MP4
From your phone, laptop or a shared folder you have downloaded. Up to 100 MB.
Convert
The audio track is encoded as MP3 on our servers in a few seconds.
Save the MP3
Download it with the MP4's name, then convert another or get the transcript.
MP4 to MP3: what changes and what does not
Measured on real files
Measured November 14, 2026. Conversion time after the upload.
| Your file | MP3 you get | Conversion |
|---|---|---|
| MP4 lecture, 1080p, 3 min (AAC 192 kbps stereo) | MP3 192 kbps stereo, 4.3 MB | 6 to 8 s |
| WebM screen recording, 1 min (Opus 128 kbps) | MP3 192 kbps stereo, 1.4 MB | 3 to 4 s |
| OGG voice note, 2 min (Opus 24 kbps mono) | MP3 64 kbps mono, 0.96 MB | 3 s |
Why is the MP3 so much smaller?
In an MP4, the video stream takes most of the space: about 2.5 Mbit per second for 1080p against 0.19 for the sound. The MP3 drops the picture and keeps the sound, so a file usually shrinks by 90% or more.
If it has no sound at all, the conversion stops and says so.
Frequently asked questions
Drop the MP4 here, press Convert MP4 to MP3 and download the result. It is free, with no account and no ad before the download.
Yes. Open this page in Safari, tap the upload box, choose the video from Photos or Files, and the MP3 downloads to Files when it is ready.
It follows the MP4's own audio: 192 kbps for most videos, less for a low-bitrate source so the MP3 is not padded. Mono stays mono.
100 MB per MP4, one file at a time.
You can download the converted file until one hour after your first download, or for 24 hours if you never download it. After that the link stops working and the job is removed. Nothing is added to your file or its name.
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