M4A to WAV
Files never leave your device.
About M4A to WAV
M4A is AAC audio in an MPEG-4 file, the default for iPhone Voice Memos, Apple Music and iTunes downloads. Convert M4A to WAV when a DAW, editor, sampler or transcription tool wants uncompressed audio. Everything runs in your browser, so the files are never uploaded.
Questions
Are my files uploaded?
No. The conversion runs in your browser, on your device. Your files are never sent to a server, and closing the tab discards everything.
Will WAV sound better than the original?
No — WAV keeps exactly what the M4A contains, but can’t restore detail the M4A encoder already removed. Convert to WAV when a program needs it, not for better sound.
Is there a file size limit?
There’s no set limit. Files are converted on your device, so very large ones depend on its free memory and storage — an hour-long recording converts fine on a recent phone.
Can I convert several files at once?
Yes. Add as many files as you like; they convert one after another to WAV, and you can download each one or all of them together.
Which browsers does it work in?
Current Chrome, Edge, Firefox and Safari on desktop, and Chrome and Safari on phones. Firefox on Android can only convert WAV files. If a file can’t be converted in your browser, its row says so.