M4A to WAV
Convert M4A files to WAV right in your browser. Your files never leave your device.
- No upload
- No account
- Free, no watermark
Drop M4A files here
Converted on this device. Nothing is uploaded.
How it works
How to convert M4A to WAV
Add your files
Drop M4A files into the box above, or press Choose files. You can add as many as you like.
Wait a moment
Each file is converted on your device as soon as you add it. Adjust the settings first if you need to.
Download
Save each file on its own, or download everything at once as a ZIP file.
Why
Why convert M4A to WAV?
Audio editors, samplers and transcription tools often want WAV. Converting M4A recordings, such as iPhone voice memos, gives you an uncompressed WAV ready to edit.
Compared
M4A and WAV compared
| Property | M4A | WAV |
|---|---|---|
| Full name | MPEG-4 Audio (usually AAC) | Waveform Audio File Format |
| Compression | Lossy (AAC), sometimes lossless (ALAC) | Uncompressed (PCM) |
| Size per minute | About 1 MB at 128 kbps | About 10 MB (CD quality stereo) |
| Best for | iPhone voice memos and Apple Music downloads | Recording, editing and audio production |
| Compatibility | Apple devices and most modern players; some older devices and apps do not support it | Plays almost everywhere |
Formats
About the formats
What is M4A?
M4A is an audio file in the MPEG-4 container, usually encoded with AAC. iPhone Voice Memos and many Apple apps save audio as M4A. Some car stereos, older players and upload forms only accept MP3.
What is WAV?
WAV stores audio uncompressed, so it keeps full quality but takes a lot of space: about 10 MB per minute at CD quality. It is the standard format for editing in audio software.
Questions
Questions and answers
Is it safe to convert my files here?
Yes. ConvertOrino converts your files with code that runs in your own browser. Nothing is uploaded to a server, nobody else can see your files, and they are gone as soon as you close the page.
Will the WAV sound better than the M4A?
No. The WAV holds exactly the sound of the M4A, uncompressed. It is much larger, but it is easier to edit and avoids another round of compression when you export again.
Are the title, artist and album kept?
Yes. Tags such as title, artist, album and year are copied to the new file wherever the format can store them. Embedded cover art is not copied.
Is the M4A to WAV tool free?
Yes, completely free. There is no sign up, no watermark and no limit on the number of files.
Is there a file size limit?
There is no fixed limit, because your own device does the work. Very large files are limited by the memory of your device. Phones handle files of a few hundred megabytes, computers handle much more.
Does it work on iPhone, Android, Mac and Windows?
Yes. It works in any modern browser, including Safari, Chrome, Edge and Firefox, on phones, tablets and computers. Nothing needs to be installed.
Does it work offline?
Yes. Once the page has loaded, the conversion works without an internet connection, which also proves that your files are not sent anywhere.
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