M4A is AAC audio in an MP4 container, used by iTunes, Apple Music and many voice recorders. It sounds better than MP3 at the same size. WAV is uncompressed audio. It sounds identical to the source but files are about ten times bigger than MP3 – the format audio editors and DAWs love.
Converting to WAV gives you uncompressed audio for editing in Audacity, GarageBand, Premiere and other tools. The conversion happens entirely in your browser, so your files are never uploaded and there’s no size limit beyond your device’s memory.
How to convert M4A to WAV
- Choose your M4A file.
- Pick the audio quality, and set a start and end time if you only need part of it.
- Press Convert and download the WAV.
Questions
Is M4A to WAV conversion free?
Yes, completely free with no limits, sign-up or watermark.
Are my files uploaded?
No. Conversion runs on your own device, so your files stay private.
Will WAV sound better than the M4A?
No – WAV keeps exactly what’s in the M4A, but can’t restore detail that lossy compression already removed.