Convert MP4 to M4A
Pull the soundtrack out of any MP4 video and save it as M4A in seconds. Conversion happens inside your browser, so even large or private videos are never uploaded.
Drop MP4 files here
MP3, WAV, FLAC, M4A, OGG, OPUS, AAC, AIFF, WMA, AMR, MP4, MOV & more · Processed on your device - nothing is uploaded
How to convert MP4 to M4A
- Click "Choose files" or drag your MP4 videos onto the page.
- Make sure "M4A" is selected as the output format (192 kbps is a good default).
- Optionally click Edit to trim, adjust volume or add effects.
- Click Convert, then Download your M4A files.
Why convert MP4 to M4A?
M4A files are much smaller than video and play on any music player, phone or car stereo.
M4A is best for iPhone, iTunes/Apple Music, YouTube uploads and efficient music storage. Excellent on Apple devices, Android, Windows, browsers and most modern players.
Will I lose quality?
The audio is decoded from the MP4 video and encoded to M4A. Choose a lossless format (WAV/FLAC) for zero loss, or a high bitrate for M4A.
MP4 vs M4A
| MP4 | M4A | |
|---|---|---|
| Full name | MPEG-4 Video | MPEG-4 Audio (AAC) |
| Type | video | lossy |
| Best for | videos from phones, YouTube and social media | iPhone, iTunes/Apple Music, YouTube uploads and efficient music storage |
| Typical size | varies | ~1.4 MB at 192 kbps per minute |
| Compatibility | Universal video format. | Excellent on Apple devices, Android, Windows, browsers and most modern players. |
| Developed by | - | MPEG / Apple (2001) |
MP4 to M4A: questions
How do I convert MP4 to M4A?
Open this page, add your MP4 file, make sure M4A is selected as the output format and click Convert. Your M4A file is ready to download in seconds.
Will converting MP4 to M4A lose quality?
The audio is decoded from the MP4 video and encoded to M4A. Choose a lossless format (WAV/FLAC) for zero loss, or a high bitrate for M4A.
Is this MP4 to M4A converter free and safe?
Yes. It's free with no watermark or sign-up. Files are processed locally in your browser, so your audio is never uploaded or stored on our servers.
Can I convert many MP4 files to M4A at once?
Yes - add up to 5 files at a time on the free plan (unlimited with Pro), convert them all with one click and download them as a ZIP.
What is the difference between MP4 and M4A?
MP4 (MPEG-4 Video) is a video format, the most common video format. We extract its soundtrack so you can save just the audio. M4A (MPEG-4 Audio (AAC)) is a compressed (lossy) format: aAC audio in an MPEG-4 container. Better quality than MP3 at the same bitrate and the native format of Apple Music and iTunes.
Does it work on Mac, Windows, iPhone and Android?
Yes. The MP4 to M4A converter runs in any modern browser - Chrome, Safari, Edge or Firefox - on desktop and mobile. No software to install.