WAV, uncompressed audio
WAV stores sound as it is, uncompressed: every audio sample stays intact.
Strengths: It is the working format of audio editors and many professional devices.
Limits: It is huge: one minute at CD quality weighs about 10 MB.
Audio
Convert WAV to M4A
Turn your WAV files into M4A in seconds. Everything happens in your browser: nothing is uploaded to any server.
WAVM4A
Drag your files here
Or paste them with Ctrl+V. They never leave your device.
Why convert WAV to M4A?
It is huge: one minute at CD quality weighs about 10 MB. As M4A it sounds good at a small size and opens on iPhone, Android and Windows.
About the formats
M4A, Apple’s audio
M4A is AAC audio in an MP4 container: the format of iTunes, iPhone voice memos and many podcasts.
Strengths: Good quality at a small size, with tags and artwork, and it opens on Apple, Android and Windows.
Limits: Some old players or editing programs only accept MP3 or WAV.
How to convert WAV to M4A
- 1Drop your WAV files in the box, paste them or pick them from your device.
- 2Check that the target is M4A and open the options if you want to adjust it.
- 3Press “Convert” and download each M4A, or all of them in a ZIP.
Frequently asked questions
Is my WAV uploaded to a server to turn it into M4A?
No. The WAV to M4A conversion runs entirely in your browser, with code downloaded from this site and executed on your device. You can check it in the Network tab of the developer tools or by going offline after the page loads.
Do I lose quality going from WAV to M4A?
A little, because M4A is lossy; at 192 kbps or more the difference is hard to hear.
Is there a size limit?
Up to 2 GB on desktop and 500 MB on mobile (less on low-memory devices), and up to 12 hours of audio on desktop. If it is over, you are told before it starts.
Can I convert several WAV files at once?
Yes. Drop as many WAV files as you like: several are converted at the same time, depending on your processor cores, and when they finish you can download each M4A or all of them in a ZIP.